Features of JIS B2220 Stainless Steel Flanges
● Excellent material: made of high-quality stainless steel material with excellent corrosion and high temperature resistance, suitable for various harsh environments.
● Variety of sizes and specifications: JIS B2220 standard covers a wide range of flanges with various sizes and specifications, and suitable nominal diameters and pressure ratings can be selected according to specific needs.
● A wide range of flange types: Including plate plain flanges (SOP), plain weld flanges (SOH), socket weld flanges (SW), butt weld flanges with necks (WN), threaded flanges (TR), weld ring flanges (LJ), integral flanges (IF), and flange covers (BL), etc., and each of which has its own specific design features and application occasions.
● Various sealing surface types: sealing surface types include full face (FF), raised face (RF), convex and concave face (M/F) and tongue and groove face (T/G), etc., and the appropriate sealing surface type can be selected according to the specific needs to ensure the sealing of the connection.
Specification
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Product Name |
JIS B2220 Stainless steel flange |
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Size |
DN15-DN1200, biggest outside diamater can be up to 6000mm |
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Pressure |
150#-2500#, PN0.6-PN400, 5K-40K |
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Standard |
GOST 12820-80, ANSI B16.5, EN1092, BS4504, JIS B2220-2012, DIN, AMSE B16.5, UNI etc. |
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Wall Thickness |
SCH5S, SCH10S, SCH10, SCH40S, SCH20, SCH30, SCH40, SCH60, SCH80, SCH160 |
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Material |
Stainless steel: A182F304/304L, A182 F316/316L, A182F321, A182F310S, A182F347H, A182F316Ti, 317/317L, 904L, 1.4301, 1.4307, 1.4401, 1.4571, 1.4541, 254Mo and etc. |
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Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500, UNS32750 , UNS32760, 1.4462, 1.4410, 1.4501 and etc. |
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Nickel alloy: inconel600, inconel625, inconel690, incoloy800, incoloy 825, incoloy 800H, C22, C-276, Monel400, Alloy20 etc. |
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Application |
Petrochemical industy;pharmaceutical industry;gas exhaust;power plant;ship buliding;water treament, etc. |
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Advantages |
ready stock, faster delivery time;available in all sizes, customized;high quality |
Material And Manufacture
JIS B2220 standard specifies the material standards for flanges as Japanese national standards and ASTM and ISO standards, which mainly include three types of materials: carbon steel, low alloy steel and austenitic stainless steel (such as 304/304L and 316/316L). The manufacture of flanges needs to follow the relevant standards and specifications to ensure that the quality and performance of the products meet the requirements.
Application Areas
JIS B2220 stainless steel flanges are widely used in various industrial fields, including petrochemical, electric power, shipbuilding and construction. Whether it is a low-pressure system or a high-pressure system, JIS B2220 flange standard provides applicable solutions. Its excellent corrosion resistance and mechanical properties make it an important element for connecting pipes and equipment.

