SAE Flanges

Understanding your choice of SAE flanges options

There are several factors to consider when selecting the right SAE flange for a hydraulic system. These include operating pressure, fluid type, temperature range and fitting size.
Operating pressure.
Operating pressure is the maximum pressure that a hydraulic system can withstand. It is important to select an SAE flange that can withstand the pressure of the hydraulic system to prevent system failure.
Fluid type.
The type of fluid is also an important consideration. Some fluids are corrosive and may cause damage to SAE flanges, while others may require specific materials to prevent leakage.
Temperature range.
Temperature range is another important factor to consider. Extreme temperatures can cause SAE flanges to expand or contract, which can lead to leaks and system failure.
Fitting Size.
The fitting size is the size of the hose or tubing to which the SAE flange will be connected. It is important to select an SAE flange that matches the fitting size to prevent leaks and ensure proper flow.
Selecting the proper SAE flange for your hydraulic system is an important decision and should not be taken lightly.

What is a SAE flanges?

SAE flange is used for the connection of various types of pipes in the hydraulic system. Usually by two pipes or pipe fittings first each fixed on the SAE flange, between the two sae flange welded pipe, sealed by o-ring, fastened together with bolts to complete the pipeline connection. sae flange connection is an important connection for pipeline construction can also work to change the direction of pipeline flow.
SAE flanges are important components in hydraulic systems, providing a safe and leak-free connection between hydraulic pumps, motors and other functions. These SAE flanges are designed to withstand high pressures and extreme temperatures, making them an important part of any hydraulic system.

Benefits of Using SAE Flanges

There are several benefits to using SAE flanges in your hydraulic system. First, they provide a secure and leak-free connection that can withstand high pressures and temperatures. This helps to ensure the safety and reliability of your hydraulic system. Second, SAE flanges are easy to install and remove, which makes maintenance and repairs easier. Finally, SAE flanges are available in a wide range of sizes and pressure ratings, which makes them suitable for a wide range of hydraulic applications.

Types of SAE Flanges

Depending on the requirements of the hydraulic system, SAE flanges are usually available on the o-ring side, flat side, or a complete set. As a common type of hydraulic connection, SAE flanges have been widely used in industry.
SAE socket welding flanges

SAE socket welding flange is a common type of hydraulic connection. This type of connection requires the pipe to be inserted into the flange hole and welded. This type of connection provides reliable sealing performance and good corrosion resistance. In addition, the socket weld flange also provides good fluid flow performance inside the pipe because the welding is done inside the pipe.
SAE butt weld flanges

SAE butt-weld flanges are another common type of hydraulic connection. This type of connection requires two flanges to be butted together and then welded. This type of connection provides reliable sealing performance and good corrosion resistance. In addition, because the welding is done between the flanges, the butt weld flange also provides good fluid flow performance inside the pipe.
SAE thread flanges

SAE threaded flanges are a common type of hydraulic connection. This type of connection requires a hole to be cut in the flange, and then the pipe is threaded onto the flange. This type of connection provides reliable sealing performance and good corrosion resistance. In addition, the threaded flanges are easier to maintain and replace because the pipe threads can be easily removed.

SAE Blind Flange

SAE Blind Flanges are designed following the SAE J518 / ISO6162 standards. These are installed in hydraulic applications for the main purpose of blocking a passive pipe or nozzle in the system. SAE Blind Flanges are suited for high-pressure applications in the 3000 and 6000 series. These flanges are available in sizes ranging between 3/8 to 5 inches. Alternatively, they are known as Code 61 and Code 62 designed to work with 3000 PSI and 6000 PSI.

SAE Split Flange

Split Flanges are designed following the SAE J518 standards. Split flanges are identified as one of the most popular flange types and are mostly used due to their ability to withstand high pressure. Alternatively, split flanges are referred to as Code 61 Split Flanges and Code 62 Split Flanges. Split flanges are available in two major pressure series, 3000 PSI and 6000 PSI. The sizes of the split flanges range between 1/2 inch to 5 inches and 1/2 inch to 3 inches (based on the pressure level).

SAE 90D Flange

SAE 90D Flange is designed for high-pressure applications. The available pressure series for the SAE 90D Flange is 3000 PSI and 6000 PSI. SAE 90D Flanges are made following the ISO 6162 / SAE J518 standards. Flange fittings are connected to flanges to create a connection with more than one flange. There are several flange fittings and an SAE 90D flange is one of these. These flange fittings are available in a variety of sizes ranging between 3/8 inches to 5 inches.

SAE Adapter

Flange adapters are important parts used during the flange coupling process. They are important parts used in piping and hydraulic systems. It is a mechanical device that is to be connected to any flanged device. They are normally used for fluid control over the fluid flow. This means that a flange adapter can join with a flanged part to the bevel end of a tube or a pipe. A flange adapter can also be used in flange pipelines. Some of these pipelines include oil & gas, shipbuilding, or diving system application. But to fully understand what a flange adapter means, it is important to understand the meaning of flange and adapter.

SAE Flange PCD

The PCD of a flange is regarded as one of the most critical dimensions in valves and flow control. PCD stands for Pitch Circle Diameter. It is defined as the diameter of a circle that goes through each of the wheel bolts, studs, wheel rim holes or bolt holes. Flanges are regarded as the perfect example to describe and calculate the Pitch circle diameter. This is because a flange has multiple holes.

Standard for SAE flanges

There are several standards for SAE flanges, including SAE J518C, ISO 6162, and ISO 6164. These standards define the dimensions, materials, and performance requirements for SAE flanges, ensuring they are compatible and interchangeable across different manufacturers and systems.

SAE J518C

SAE J518C is North America’s most widely used standard for SAE flanges. It defines the dimensions, pressure ratings, and performance requirements for four-bolt split flange connections with O-ring seals. SAE J518C flanges are available in various sizes, from 1/2″ to 5″, and can withstand pressures up to 6,000 psi.

ISO 6162

ISO 6162 is the international SAE flanges standard developed by the International Organization for Standardization (ISO). It defines the dimensions, materials, and performance requirements for four-bolt split flange connections with flat face or O-ring seals. ISO 6162 flanges are available in sizes ranging from DN13 to DN127 and can withstand pressures up to 35 MPa.

ISO 6164

ISO 6164 is another international standard for SAE flanges developed by ISO. It defines the dimensions, materials, and performance requirements for four-bolt pad flange connections with flat face or O-ring seals. ISO 6164 flanges are available in sizes ranging from DN13 to DN127 and can withstand pressures up to 35 MPa.

How do SAE flanges work?

A complete set consists of a flat side flange and an O-ring side flange. The O-ring side flange contains a recessed seat for the rubber O-ring (usually made of NBR material). The complete kit forms a seal between the flat face and the O-ring, which is fixed in a circular recess in the other half. Tightening the bolt pulls the two halves together and compresses the O-ring.
The use of the O-ring gives O-ring flanges an advantage over metal-to-metal flanges, as all metal flanges are more prone to leakage because they must be tightened to a higher but narrower torque range. This makes metal-to-metal flanges more prone to striated threads or cracks.
A complete set of flanges is tightened to the recommended torque using socket head cap screws and spring washers. Bolt lengths are typically shorter than the overall length of the SAE flange, but this is normal according to SAE J518. In addition, SAE J518 does not require the use of hex nuts to secure flanges.

Materials of SAE flanges

Depending on the specific application requirements, SAE flanges are made from a variety of metal materials, including:

Titanium SAE flange	ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7, ASTM R50250/GR.1| R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Copper SAE flange	T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel SAE flange	ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Carbon Steel SAE flange	ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Stainless Steel SAE flange	ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Alloy Steel SAE flange	ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Hastelloy SAE flange	ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Brass SAE flange	3602 / 2604 / H59 / H62 / etc.
Inconel SAE flange	ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750
Monel SAE flange	ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Duplex SAE flange	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex SAE flange	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Alloy 20 SAE flange	ASTM B462 / ASME SB462, Carpenter 20 Alloy, Alloy 20Cb-3
Aluminium SAE flange	5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel SAE flange	ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Nimonic SAE flange	Nimonic 75, Nimonic 80A, Nimonic 90
Other SAE flange material	Tin bronze, Alumunum bronze, Lead bronze
Incoloy SAE flange	ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925
254 Smo SAE flange	ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547

Dimensions of SAE flanges

SAE flanges come in different sizes, each designed to fit specific pipe or hose diameters. The Society of Automotive Engineers (SAE) standardized the dimensions of SAE flanges, ensuring consistency across different manufacturers.

SAE flanges are classified based on their pressure rating, with the most common being the 3000 psi and 6000 psi flanges. The 3000 psi flanges come in sizes ranging from 1/2” to 5”, while the 6000 psi flanges come in sizes ranging from 1/2” to 3”.

The dimensions of SAE flanges include the bolt circle diameter, the number of bolt holes, the bolt hole diameter, and the flange face diameter. These dimensions vary depending on the size and pressure rating of the flange.

Dimensions of SAE split flange

Dimensions of code 61 SAE split flange

• Code 62 split flanges (6000 psi High pressure series) : 1/2″(DN13)  to 3″(DN76)

Dimensions of code 62 SAE split flange

Dimensions of SAE thread flanges

Dimensions of SAE BSPP thread flanges

Max. working	Nominal	Dimensions										Bolts		Weight
pressure	Flange	3000 psi standard pressure series / code 61 SAE BSPP thread flanges
kg/cm2	Size	A	B	C	D	E	F	G	H	I	L	metr.	UNC	kg
350	1/2″	G 1/2	13	38.1	54	17.48	46	36	16	19	9	M 8×30	5/16×1 1/4	0.25
350	1/2″	G 3/8	13	38.1	54	17.48	46	36	16	19	9	M 8×30	5/16×1 1/4	0.28
350	3/4″	G 3/4	19	47.63	65	22.23	52	36	18	19	11	M 10×35	3/8×1/2	0.39
350	3/4″	G 1/2	13	47.63	65	22.23	52	36	18	19	11	M 10×35	3/8×1/2	0.42
315	1″	G 1	25	52.37	70	26.19	59	38	18	22	11	M 10×35	3/8×1/2	0.46
315	1″	G 3/4	19	52.37	70	26.19	59	38	18	20	11	M 10×35	3/8×1/2	0.49
315	1″	G 1/2	13	52.37	70	26.19	59	38	18	22	11	M 10×35	3/8×1/2	0.52
250	1.1/4″	G 1 1/4	32	58.72	79	30.18	73	41	21	22	11.5	M 10×40	7/16×1 1/2	0.66
250	1.1/4″	G 1 1/4	32	58.72	79	30.18	73	41	21	22	13	M 12×40	–	0.66
250	1.1/4″	G 1	25	58.72	81	30.18	73	42	25	22	11.5	M 10×40	7/16×1 3/4	0.75
250	1.1/4″	G 1	25	58.72	81	30.18	73	42	25	22	13	M 12×40	–	0.75
250	1.1/4″	G 3/4	19	58.72	79	30.18	73	41	21	22	11.5	M 10×40	7/16×1 1/2	0.79
200	1.1/2″	G 1 1/2	38	69.85	93	35.71	83	45	25	24	13.5	M 12×45	1/2×3/4	1.05
200	1.1/2″	G 1 1/4	32	69.85	95	35.71	83	45	27	24	13.5	M 12×45	1/2×3/4	1.1
200	1.1/2″	G 1	25	69.85	93	35.71	83	45	25	24	13.5	M 12×45	1/2×3/4	1.16
200	1.1/2″	G 3/4	19	69.85	93	35.71	83	45	25	24	13.5	M 12×45	1/2×3/4	1.23
200	2″	G 2	51	77.77	102	42.88	97	45	25	30	13.5	M 12×45	1/2×3/4	1.19
200	2″	G 1 1/2	38	77.77	102	42.88	97	45	25	26	13.5	M 12×45	1/2×3/4	1.25
200	2″	G 1 1/4	32	77.77	102	42.88	97	45	25	24	13.5	M 12×45	1/2×3/4	1.4
200	2″	G 1	25	77.77	102	42.88	97	45	25	26	13.5	M 12×45	1/2×3/4	1.44
160	2.1/2″	G 2 1/2	63	88.9	114	50.8	109	50	25	30	13.5	M 12×45	1/2×3/4	1.4
160	2.1/2″	G 2	51	88.9	114	50.8	109	50	25	30	13.5	M 12×45	1/2×3/4	1.45
138	3″	G 3	73	106.38	134	61.93	131	50	27	34	17	M 16×50	5/8×2	2.15
138	3″	G 2 1/2	63	106.38	134	61.93	131	50	27	30	17	M 16×50	5/8×2	2.25
35	3.1/2″	G 3 1/2	89	120.65	152	69.85	140	48	27	34	17	M 16×50	5/8×2	2.4
35	3.1/2″	G 3	73	120.65	152	69.85	140	48	27	34	17	M 16×50	5/8×2	2.5
35	4″	G 4	99	130.18	162	77.77	152	48	27	34	17	M 16×50	5/8×2	2.85
35	4″	G 3 1/2	89	130.18	162	77.77	152	48	27	34	17	M 16×50	5/8×2	3
35	5″	G 5	120	152.4	184	92.1	181	50	28	30	17	M 16×50	5/8×2	5.8
6000 psi high pressure series / code 62 SAE BSPP thread flanges
Max. working pressure kg/cm2	Nominal Flange Size	Dimensions										Bolts		Weight
		A	B	C	D	E	F	G	H	I	L	metr.	UNC	kg
400	1/2″	G 1/2	13	40.49	54	18.24	48	36	16	19	9	M 8×30	5/16 x1 1/4	0.26
400	1/2″	G 3/8	13	40.49	54	18.24	48	36	16	19	9	M 8×30	5/16 x1 1/4	0.29
400	3/4″	G 3/4	19	50.8	71	23.8	60	35	21	22	11	M 10×35	3/8 x1 1/2	0.5
400	3/4″	G 1/2	13	50.8	71	23.8	60	35	21	22	11	M 10×35	3/8 x1 1/2	0.55
400	1″	G 1	25	57.15	81	27.76	70	42	25	24	13	M 12×45	7/16 x1 3/4	0.76
400	1″	G 3/4	19	57.15	81	27.76	70	42	25	24	13	M 12×45	7/16 x1 3/4	0.8
400	1.1/4″	G 1 1/4	32	66.68	95	31.75	78	45	27	25	15	M 14×45	1/2 x1 3/4	1.2
400	1.1/4″	G 1	25	66.68	95	31.75	78	45	27	25	15	M 14×45	1/2 x1 3/4	1.3
400	1.1/2″	G 1 1/2	38	79.38	112	36.5	95	50	30	28	17	M 16×50	5/8 x 2	1.65
400	1.1/2″	G 1 1/4	32	79.38	112	36.5	95	50	30	28	17	M 16×50	5/8 x 2	1.75
400	2″	G 2	51	96.82	134	44.45	114	65	37	30	21	M 20×70	3/4 x 2 1/2	2.45
400	2″	G 1 1/2	38	96.82	134	44.45	114	65	37	30	21	M 20×70	3/4 x 2 1/2	2.55
400	2.1/2″	G 2 1/2	63	123.8	180	58.8	152	80	45	32	26	M 24×80	–	6.75
400	3″	G 3	73	152.4	208	71.4	178	90	55	40	33	M 30×100	–	–

The above data sheet could also be used for SAE NPT threaded flanges. The dimensions of these two types of SAE flanges are the same.

Dimensions of SAE Socket Weld Flanges

Max. recommend			Dimensions (mm)										Bolts		Weight
working pressure kg/cm2 (bar)	Nominal Flange Size	Pipe size	A	B	C	D	E	F	G	H	I	L	metr.	unc	KG
SAE 3000 psi standard series socket weld flanges (code 61 flanges)
350	1/2″	21.3×3.7	22	13	38.1	54	17.48	46	36	16	19	9	M8x30	5/16×1.1/4	0.25
350	1/2″	17.1×3.2	17.8	13	38.1	54	17.48	46	36	16	19	9	M8x30	5/16×1.1/4	0.28
350	3/4″	26.7×3.9	27.4	19	47.63	65	22.23	52	36	18	19	11	M10x35	3/8×1.1/2	0.39
315	1″	33.4×4.6	34.1	25	52.37	70	26.19	59	38	18	19	11	M10x35	3/8×1.1/2	0.46
250	1.1/4″	42.2×4.9	42.9	32	58.72	79	30.18	73	41	21	22	11.5	M10x40	7/16×1.1/2	0.66
200	1.1/2″	48.3×5.1	49	38	69.85	93	35.71	83	45	25	24	13.5	M12x45	1/2×1.3/4	1.05
200	2″	60.3×5.5	61.4	51	77.77	102	42.88	97	45	25	26	13.5	M12x45	1/2×1.3/4	1.19
160	2.1/2″	73.0×7.0	74.1	63	88.9	114	50.8	109	50	25	30	13.5	M12x45	1/2×1.3/4	1.4
138	3″	88.9×7.6	90	73	106.38	134	61.93	131	50	27	34	17	M16x50	5/8×2	2.15
35	3.1/2″	101.6×8.1	102.7	89	120.65	152	69.85	140	48	27	34	17	M16x50	5/8×2	2.4
35	4″	114.3×8.6	115.5	99	130.18	162	77.77	152	48	27	34	17	M16x50	5/8×2	2.85
35	5″	141.3×9.5	142.5	120	152.4	184	92.1	181	50	28	28	17	M16x50	5/8×2	5.8
SAE 6000 psi high pressure series Socket weld flanges (code 62 socket weld flanges)
Working pressure	Flange size	Pipe size	A	B	C	D	E	F	G	H	I	L	metr.	unc	Weight
400	1/2″	21.3×3.7	22	13	40.49	54	18.24	48	36	16	19	9	M8x30	5/16×1.1/4	0.26
400	1/2″	17.1×3.2	17.8	13	40.49	54	18.24	48	36	16	19	9	M8x30	5/16×1.1/4	0.29
400	3/4″	26.7×3.9	27.4	19	50.8	71	23.8	60	35	21	22	11	M10x35	3/8×1.1/2	0.5
400	1″	33.4×4.6	34.1	25	57.15	81	27.76	70	42	25	22	13	M12x45	7/16×1.3/4	0.76
400	1.1/4″	42.2×4.9	42.9	32	66.68	95	31.75	78	45	27	25	15	M14x45	1/2×1.3/4	1.2
400	1.1/2″	48.3×5.1	49	38	79.38	112	36.5	95	50	30	28	17	M16x50	5/8×2	1.65
400	2″	60.3×5.5	61.4	51	96.82	134	44.45	114	65	37	24	21	M20x70	3/4×2.1/2	2.45
400	2.1/2″	73.0×7.0	74.1	63	123.8	180	58.7	152	80	45	30	26	M24x75	–	8.3
400	3″	88.9×7.6	90	73	152.4	208	71.4	178	90	55	30	33	M30x100	–	–

Dimensions of SAE Butt weld flanges

Max. recommend working pressure	Nominal Flange Size	Dimensions (mm)									Bolts		Weight kg
3000 psi standard series SAE butt weld flanges (code 61 flanges)
kg/cm2 (bar)	inch	A	B	C	D	E	F	G	H	L	metr.	unc	KG
350	1/2″	21.3	13.9	38.1	54	17.48	46	36	16	9	M8x30	5/16×1.1/4	0.28
350	3/4″	26.7	18.9	47.63	65	22.23	52	36	18	11	M10x35	3/8×1.1/2	0.39
315	1“	33.4	24.2	52.37	70	26.19	59	38	18	11	M10x35	3/8×1.1/2	0.46
250	1.1/4”	42.2	32.4	58.72	79	30.18	73	41	21	11.5	M10x40	7/16×1.1/2	0.66
200	1.1/2“	48.3	38.1	69.85	93	35.71	83	44	25	13.5	M12x45	1/2×1.3/4	1.05
200	2”	60.3	49.3	77.77	102	42.88	97	45	25	13.5	M12x45	1/2×1.3/4	1.19
160	2.1/2“	73	59	88.9	114	50.8	109	50	25	13.5	M12x45	1/2×1.3/4	1.4
138	3”	88.9	73.7	106.38	134	61.93	131	50	27	17	M16x50	5/8×2	2.15
35	3.1/2“	101.6	85.4	120.65	152	69.85	140	48	27	17	M16x50	5/8×2	2.4
35	4”	114.3	97.1	130.18	162	77.77	152	48	27	17	M16x50	5/8×2	2.85
35	5“	141.3	122.3	152.4	184	92.08	181	50	28	17	M16x55	5/8×2	5.2
6000 psi high pressure series SAE Butt weld flangees (code 62 butt weld flanges)
Max. Working Pressure	Nominal Flange Size	A	B	C	D	E	F	G	H	L	Bolts		Weight
400	1/2″	21.3	11.7	40.49	54	18.24	48	36	16	9	M8x30	5/16×1.1/4	0.29
400	3/4″	26.7	15.5	50.8	71	23.8	60	35	21	11	M10x35	3/8×1.1/2	0.5
400	1″	33.4	20.6	57.15	79	27.76	70	41	21	12.5	M12x45	7/16×1.3/4	0.76
375	1.1/4″	42.2	29.4	66.68	93	31.75	78	44	25	14.5	M14x45	1/2×1.3/4	1.2
250	1.1/2″	48.3	34.1	79.38	112	36.5	95	55	30	17	M16x50	5/8×2	1.65
250	2″	60.3	42.9	96.82	134	44.45	114	65	37	21	M20x65	3/4×2.1/2	2.45
400	2.1/2″	73	54	123.8	180	58.7	152	80	45	25	M24x75	–	6.4

Manufacturing process of SAE Flanges

SAE flanges can be produced by forging, casting. We mainly produce flanges by forging, cutting and rolling processes. We will take you through the step-by-step process of manufacturing SAE flanges, from the materials used to the final product.

Step 1: Material Selection
The first step in our manufacturing process is material selection. We use only the highest quality materials, including carbon steel, stainless steel, and alloy steel. Each material has its own unique properties and is selected based on the specific needs of the customer.
Step 2: Cutting
Once the materials are selected, they are cut to the desired size using a cutting machine. We use state-of-the-art cutting machines to ensure precision and accuracy in every cut.
Step 3: Heating
After the materials are cut, they are heated to the desired temperature. This helps to reduce any stresses in the material and makes it easier to shape the flange.
Step 4: Forming
The next step in our manufacturing process is forming the flange. We use a hydraulic press to shape the heated material into the desired shape. This ensures that each flange is formed with precision and accuracy.
Step 5: Solid solution
Make the structure and composition of the blank flange uniform, which is particularly important for raw materials. At high temperatures, atomic activity intensifies, σ Phase dissolution, the chemical composition tends to be uniform, and a uniform single-phase structure is obtained after rapid cooling.
Eliminate work hardening to facilitate continuous cold work. The distorted lattice is recovered through solution treatment, the elongated and broken grains are recrystallized, the internal stress is eliminated, the tensile strength of stainless-steel forgings decreases, and the elongation increases.
Restore the inherent corrosion resistance of the flange blank. Due to carbide precipitation and lattice defects caused by cold working, the corrosion resistance of the flange blank is reduced. The corrosion resistance of forgings recovered to the best state after solution treatment.
Step 6: Machining
Once the flange is formed, it undergoes machining to ensure that it is smooth and free from any imperfections. We use CNC machines to achieve the highest level of accuracy in our machining process.
Step 7: Inspection
Before the flange is considered complete, it undergoes a thorough inspection process to ensure that it meets industry standards. Our team of experts inspects each flange to ensure that it is free from any defects and meets the specifications of the customer.
Step 8: Coating
Once the inspection process is complete, the flange is coated to protect it from corrosion and other environmental factors. We offer a variety of coating options, including epoxy, zinc, and galvanized coatings.
Step 9: Packaging and Delivery
Finally, the flange is packaged and prepared for delivery to the customer. We take great care in packaging our products to ensure that they arrive at their destination in pristine condition.
At Jihua, we take great pride in our manufacturing process of SAE flanges. We are committed to producing high-quality flanges that meet the needs of our customers. Contact us today to learn more about our products and services.

Marking of SAE flanges

The marking of SAE flanges is essential to their manufacture and use. The marking aims to provide information about the flange’s material, size, pressure rating, and other relevant details.
SAE flanges are typically marked by industry standards, such as SAE J518C, ISO 6162, or ISO 6164. These standards specify the required information that must be included on the flange, as well as the format and location of the markings.
The required information typically includes the following:

• Manufacturers trademark or name
• Material Designation
• Rating Designation
• Size Designation
• Product Heat Numbers 
• SAE Flange design model

The standard also specifies the location of the marking on the flange. Typically, the marking is placed on the raised face of the flange near the bolt holes. In some cases, the marking may be located on the flange hub or the plate itself.

Packing of SAE flanges

How to package SAE flanges? To pack the SAE flange, follow these steps:
When it comes to packaging SAE flanges, it’s important to ensure that they are properly protected and secured during transportation to prevent any damage. We will walk you through some of the key steps to follow when packaging SAE flanges.
Step 1: Clean and Inspect the Flanges
Before packaging the SAE flanges, it’s essential to clean them thoroughly to remove any dust, dirt, or debris that may have accumulated on them. You can use a cloth or brush to clean the flanges and inspect them to ensure they are free from any defects or damages.
Step 2: Choose the Right Packaging Material
The packaging material you choose should be sturdy and able to provide adequate protection to the flanges during transportation. Ideally, you should use a strong cardboard box or wooden crate that can withstand the weight and size of the SAE flanges.
Step 3: Secure the Flanges
Once you have the packaging material ready, you need to secure the flanges to prevent them from moving around or getting damaged during transit. You can use bubble wrap, foam, or any other suitable cushioning material to protect the SAE flanges from impact or shock.
Step 4: Label the Package
Labeling the package correctly is crucial to ensure that it reaches the intended destination without any confusion. You should clearly label the package with the recipient’s address, contact information, and any other necessary details.
Step 5: Arrange for Shipping
After the package is fully prepared and labeled, it’s time to arrange for shipping. You can use a reliable courier or shipping company to ensure that the package is delivered on time and in good condition.
Packaging SAE flanges requires careful planning and attention to detail. By following the above steps, you can ensure that your flanges are properly protected and arrive at their destination safely. Remember to use high-quality packaging materials, secure the SAE flanges properly, and label the package accurately to avoid any mishaps during transportation.

Inspection and measurement of SAE flanges

There are several factors that need to be considered when inspecting and measuring SAE flanges, including:

Material
The first thing to inspect in a SAE flange is the material. The standard specifies that the flanges should be made from materials such as carbon steel, stainless steel, or alloy steel. The material should be free from any defects such as cracks, porosity, or inclusions that can affect the integrity of the flange.
Surface Finish
The surface finish of a flange is also important. The standard specifies that the flanges should have a smooth and even surface finish to ensure proper sealing of the gasket. Any roughness or irregularities on the surface of the flange can lead to leaks in the piping system.
Type of SAE flange
This is considered to be the easiest step. the type of SAE flange is usually printed on the body of the flange. All you need to do is to check the SAE flange. There are different types of flanges, namely SAE flanges, SAE counter flanges, SAE blind flanges, SAE 90D flanges and SAE adapters.
The size of SAE flanges
This is quite a difficult step. When performing this operation, the inside diameter, outside diameter, bolt hole diameter, bolt hole and bolt circle diameter must be calculated.The bolt circle diameter of an SAE flange is considered to be one of the most important measurements when identifying a flange. It is defined as the measurement between the center of the bolt hole and the center of the other bolt hole (the other bolt hole is located on the opposite side of the SAE flange).
Thickness of the SAE flange
The thickness of the SAE flange is important because it can be used to determine the pressure that the SAE flange can withstand. the thicker the SAE flange, the more pressure the flange can withstand. When measuring the thickness, it is important to pay attention to the outer edge of the measurement.

To inspect and measure SAE flanges, you will need a set of calipers or a micrometer to accurately measure the dimensions of the flange. It is also a good idea to have a torque wrench on hand to ensure that the bolts are tightened to the correct torque specification.

Application of SAE flanges

SAE flanges are used in a wide range of hydraulic systems, including mobile machinery, industrial machinery, and marine applications. They are commonly used to connect pumps, motors, cylinders, and valves in a hydraulic system. However, selecting and applying SAE flanges can be challenging, especially for those who are new to hydraulic systems.

How to purchase the correct SAE flanges?

Are you in the market for SAE flanges but don’t know where to start? Don’t worry, you’re not alone. With so many options available, it can be overwhelming to choose the right flanges for your project. We’ll go over some key factors to consider when purchasing SAE flanges to ensure that you make the right decision.
Determine the Material Needed
The first step to purchasing the correct SAE flanges is to determine the material you need. These flanges are available in a variety of materials, including carbon steel, stainless steel, and alloy steel. The choice of material will depend on the specific application and environmental conditions. If you’re unsure which material to choose, consult with a qualified engineer or supplier to help guide you in making the right decision.
Identify the Flange Face Type
Flange face types refer to the surface finish of a flange, and there are many different types of flange face finishes, including flat face (FF), raised face (RF), ring-type joint (SAE), tongue and groove (T&G), male and female face (M&F). Each type of flange face has its unique characteristics and is suitable for different applications.

• Flat face (FF): This type of flange face has a flat, smooth surface that is perpendicular to the axis of the pipe. It is typically used for low-pressure applications and when the sealing is achieved by a gasket.
• Raised face (RF): This type of flange face has a raised ring on the surface that surrounds the bolt holes. The ring provides a surface for the gasket to rest on, which helps to create a better seal. It is commonly used in applications with moderate pressure.
• Ring joint face (RTJ): This type of flange face has a specially designed groove to accommodate a metallic ring gasket. The groove is cut into the surface of the flange, and the gasket sits in the groove to create a tight seal. This type of flange face is typically used in high-pressure applications.
• Tongue and groove face (T&G): This type of flange face has a raised tongue on one flange and a matching groove on the other flange. The tongue fits into the groove, creating a tight seal without the need for a gasket. This type of flange face is often used in applications where high pressure and temperature are involved.
• Male and Female Face (M&F): This type of flange face is similar to the tongue and groove face. However, it has a male and female end which creates a face to face contact between two flanges. This type of flange is mainly used for low pressure and low temperature applications.

To identify a specific flange face type, you need to provide me with more information, such as the flange’s application, dimensions, and material.
Determine the SAE flange Size and Pressure Class
Once you have identified the material and SAE flange type, the next step is to determine the size and pressure class of the SAE flange. SAE flanges are available in various sizes and pressure ratings, and it’s crucial to select the correct size and pressure class to ensure that the flange can withstand the intended operating conditions. You should consult the system specifications and design to determine the appropriate size and pressure class.
Look for Quality and Certifications
It’s essential to ensure that the SAE flanges you purchase are of high quality and come with the necessary certifications. Look for suppliers that have a reputation for delivering high-quality products, and check for relevant certifications, such as ISO 9001, API, and CE, to ensure that the flanges meet industry standards.
Consider the Price
While the price should not be the only factor to consider when purchasing SAE flanges, it’s important to compare prices from different suppliers to ensure that you’re getting a fair price. However, remember that the cheapest option may not always be the best quality, so ensure that you’re not compromising on quality in pursuit of lower costs.
Purchasing the correct SAE flanges can be challenging, but by considering the factors outlined in this post, you can ensure that you make an informed decision that meets your project requirements. Remember to consult with experts and compare suppliers to ensure that you’re getting a high-quality product at a fair price.

How to select SAE flanges manufacturer?

Selecting the right manufacturer for SAE flanges can be a daunting task. With so many options available, it’s easy to get overwhelmed and make the wrong choice. However, choosing the right manufacturer is critical to ensure that you get the best quality flanges that meet your specific needs. We provide some tips to help you select the right SAE flanges manufacturer.
Quality of Products
The first factor to consider when selecting a SAE flanges manufacturer is the quality of their products. You should look for a manufacturer that uses high-quality materials and follows strict quality control processes to ensure that their products meet the required standards.
Industry Experience
Another factor to consider is the manufacturer’s industry experience. Look for a manufacturer that has been in the industry for a significant period and has a proven track record of delivering high-quality products to their customers. An experienced manufacturer will have a better understanding of the market and the needs of their customers.
Production Capacity
It is also essential to consider the production capacity of the manufacturer. You should look for a manufacturer that has the capacity to produce the required quantity of flanges in a timely manner to meet your project’s needs.
Pricing
Pricing is another crucial factor to consider when selecting a SAE flanges manufacturer. While it is essential to look for a manufacturer that offers competitive pricing, it is equally important to consider the quality of their products. Don’t compromise on the quality of the products for the sake of saving a few dollars.
Customer Service
The final factor to consider is the manufacturer’s customer service. Look for a manufacturer that has excellent customer service and is willing to assist you with any queries or concerns you may have. A manufacturer that values their customers will provide a better overall experience.

Choosing the right SAE flanges manufacturer is essential to ensure you get high-quality products that meet your needs. Look for a manufacturer with quality certifications, experience, a good reputation, customization capabilities, and a competitive price. By following these tips, you will be able to find the right manufacturer for your flange needs.

Why Choose Jihua to Be Your SAE flange Supplier?

Jihua is a well-established and reputable manufacturer and supplier of SAE flanges that has been providing high-quality products to customers worldwide for many years. Here are some reasons why you might choose Jihua to be your SAE flange supplier:

• High-quality products: Jihua is committed to providing high-quality SAE flanges made from the best materials and manufactured to the highest standards. The company has strict quality control procedures in place to ensure that each product meets or exceeds customer expectations.
• Competitive pricing: Jihua offers competitive pricing on its products, which means you can get high-quality SAE flanges at an affordable price.
• Wide range of products: Jihua offers a wide range of SAE flanges, including ANSI, DIN, JIS, EN, and other international standards. This means you can find the right product to meet your specific needs.
• Excellent customer service: Jihua is committed to providing excellent customer service and support to all of its customers. The company has a team of experienced professionals who are available to answer any questions or concerns you may have.
• Fast delivery: Jihua understands the importance of timely delivery and works hard to ensure that all orders are shipped out quickly and efficiently.

Jihua is a reliable and trustworthy supplier of SAE flanges that can meet your needs and exceed your expectations.

Export Country For SAE flanges

MIDDLE EAST	AFRICA	NORTH AMERICA	EUROPE	ASIA	SOUTH AMERICA
Saudi Arabia	Nigeria	Usa	Russia	India	Argentina
Iran	Algeria	Canada	Norway	Singapore	Bolivia
Iraq	Angola	Mexico	Germany	Malaysia	Brazil
Uae	South Africa	Panama	France	Indonesia	Chile
Qatar	Libya	Costa Rica	Italy	Thailand	Venezuela
Bahrain	Egypt	Puerto Rica	Uk	Vietnam	Colombia
Oman	Sudan	Trinidad And Tobago	Spain	South Korea	Ecuador
Kuwait	Equatorial Guinea	Jamaica	Ukraine	Japan	Guyana
Turkey	The Republic Of Congo	Bahamas	Netherland	Sri Lanka	Paraguay
Yemen	Gabon	Denmark	Belgium	Maldives	Uruguay
Syria			Greece	Bangladesh
Jordan			Czech Republic	Mayanmar
Cyprus			Portugal	Taiwan
			Hungary	Cambodia
			Albania
			Austria
			Switzerland
			Slovakia
			Finland
			Ireland
			Croatia
			Slovenia
			Malta