Our Products

Socket Weld Flanges

Socket Weld Flange

Standard Flanges (Weld-neck, Slip-on, Socket-weld, Lap-joint, Blind and Threaded Types) are manufactured by KUSHALMANI FORGE to specifications of ASME B16.5, ASME B16.47, ASME B16.48, BS EN 1092, BS 4504, API-605, API-590, MSSSP44, DIN 2632 to 2638, DIN 2576, 2642, 2527, 2566. Flanges cover a full range of pressure ratings of these specifications (150 – 2500 psi for ASME & PN6-PN400 for DIN / EN flanges). Non-standard flanges are made upto a diameter of 4500 mm and the weight not exceeding 5,000 kgs.

One of the leading forged flange manufacturers and supplier in China, KUSHALMANI FORGE Forge manufactures various types of carbon steel, alloy steel, stainless steel and duplex steel flanges as per customer recognised material standard (ASME/ANSI/DIN). The flanges are also manufactured as per customer specific requirements/drawings.


1/2” to 80”


150lbs to 3000lbs

Material Range:

1. Carbon steel: Q235、A105、A3、20#、P250GH、P250GH、20Mn、16Mn、Q345、A266Cr2、C22、C22.8、A350LF2、SS400、S235JRG2、1.0038、1.0460、1.0352、SF440、SS41、SM41,and so on.

2. Stainless steel: F304、F304L、F316、F316L、F317、F321、1.4301、1.4401、1.4306、1.4404、1.4541、1.4571、F51、F53、0Cr18Ni9、0Cr19Ni9、0Cr17Ni12Mo2、00Cr17Ni14Mo2、0Cr18N11Ti、00Cr24Ni6Mo3N、00Cr18Ni10 and so on.

3. Alloy Steel: F11、   F5 、 F9 、15CrMo、 30CrMo、 4130、8630、4140、42CrMo4V、 1Cr13.

4.Double Stainless Steel: 1.4462, F51, S31803; F60, S32205; F53, S32750

5.Hastelloy: Inconel 625 & Monel K500

Production Standard:

1. American Standard: ANSI B16.5/API605,6A,6B/MSS SP44/AWWA C207

2. DIN Standard: DIN2527/2528/2561/2565/2566/2573/2576/2627/2630/2641/2642/2655/2656/2673/86029/86030

3.BS Standard: BS4504 PN16/PN40,BS10  TABLE E/TABLE D

4.JIS Standard: JIS/KS 5K, 10K, 16K, 20K, 30K

5.GOST Standard: GOST12820-80,12821-80

Surface Treatment:

1. Anti-Rust oil

2. Painting( black, yellow and grey)

3. Galvanizing

4. Power coating

Non-standard Products:

We can design and manufacture flanges and forging pieces according to customers’ drawings and special requirements