Hebei HaiRuiMai Group established in 1982,is one of the biggest flanges manufacturer in China.We are specialized in the production of forged steel flanges,plate steel flanges,steel pipes,butt weld pipe fittings and forged pipe fittings.The products according to standard ANSI/ASME,BS,DIN,EN,JIS,GOST and customer’s requirements.Our plant acquired world class approved quality certifications like the API,ISO9001,ISO14001,CE/PED,ABS and we keep the cooperation with many professional third perty inspection agencies,such as the SGS,BV,LR,ABS,VELOSI etc.
We manufacture two types JIS B2220 slip on flange products,which contain: JIS B2220 slip on plate flange(SOP Flange) and JIS B2220 slip on hubbed flange(SOH Flange).The nominal size in our factory from 450A to 1500A.Our products are widely used in Oil & Gas development,Power plant,Chemical industrial,Shipbuilding & Offshore,Steel constructions,Water treatment etc.We can manufacture many kinds of carbon steels.The raw materials as follows:
Carbon steel:ASTM A105,A181,ASTM A516 GR.60,GR.70,ASTM A694 F42,F46,F52,F56,F60,F65,F70,ST37,ST45.8,C22.8,S2235,S235JRG2,P235GH,P245GH,P250GH,P265GH,P355GH,S355J2,16Mn,20Mn,Q235,20#,CT20,SS400 etc.
Alloy steel:ASTM A350 LF2,CL1/CL2,ASTM A182 F5,F9,F11,F12,F22,F91 etc.
Stainless Steel:ASTM A182 F304,F304L,F316,F316L,F321,F321H,F304H,F316H,F347H,1.4301,1.4306,1.4401,1.4404,1.4541,1.4571,SUS304,SUS316 etc.
For any flanges needs you may have,please browse through our products list,then feel free to contact us.We always reply within 24 hours.We sincerely welcome customers domestic and abroad to visit us for cooperation.