Hebei HaiRuiMai Group manufacture pipe fittings and flanges products more than 30 years,which according to international standard ANSI/ASME B16.9,BS 4504,DIN,JIS B2220,EN 1092,GOST etc.Our products are widely used in Industry field,like Oil,Gas & Petrochemical,Energy & Power plant,Chemical industrial,Shipbuilding & Offshore Development.The JIS B2220 flange products in our company contain:slip on plate flange,slip on hubbed flange,blind flange,weld neck flange,threaded flange,socket weld flange,lap joint flange,integral flange.
We manufacture high quality JIS B2220 slip on flange,which could be divided two different types:JIS B2220 slip on plate flange and JIS B2220 hubbed flange. It on plate flange is just like a ring with bolt holes,it on hubbed flange is like a plate flange with a neck or hub,the cost is higher than the slip on plate flange,but slip on hubbed flange can supply a better joint quality and reinforcement.
It on plate flange nominal pressure are 5K and 10K,in the different pressure the products’ size are different,as follows:
We can manufacture many kinds of carbon steel .The materials for the products 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.
Stainless 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.
Alloy steel: ASTM A350 LF2,CL1/CL2,ASTM A182 F5,F9,F11,F12,F22,F91 etc.
HaiRuiMai Group put quality and reputation on the first position,our plant acquired wrorld-class approved certificates like API,ISO9001,ISO14001.CE/PED,ABS and we keep the cooperation with many professional Third Party Inspection agencies,such as the SGS,BV,LR,ABS,VELOSI etc.