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304 Stainless Steel Flange
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- 商品名稱: 304 Stainless Steel Flange
304 stainless steel flange is one of the more commonly used stainless steel flanges, and each stainless steel has good performance in its specific application field. The first thing to do is to figure out what the flange is for, and then to determine the correct grade of stainless steel. Commonly used stainless steels are 304, 304L, 316, 316L and so on. They all contain chemical components such as chromium and nickel. For example, adding molybdenum can further improve atmospheric corrosion, especially the corrosion resistance of chloride-containing atmosphere. Flanges, also known as flanges, are parts that connect pipes to each other. There are holes on the flange, and the bolts connect the two flanges tightly. Flange connection refers to a detachable connection in which flanges, gaskets and bolts are connected to each other as a set of combined sealing structures. The flange used for piping refers to the inlet and outlet flanges of the equipment when used on equipment.
304 stainless steel flanges are forged and made of SUS304 material. Other commonly used stainless steel materials at home and abroad are: (304, 304L, 316, 316L, S30408, S30403, S31608, S31603, SUS304, ASTM A403, TP321, TP317L, 347, 0Cr18Ni9 , 00Cr19Ni10, 00Cr17Ni14Mo2, 1Cr18Ni9Ti, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2, etc.);
Common types and codes of 304 stainless steel flanges: 1, PL plate flat welding flange, 2, SO flat neck flange, 3, WN neck butt welding flange, 4, SW socket welding flange, 5, Th Thread Flange, 6, BL Flange Cover, 7, Blind Plate, 8, PJ/SE Neck Butt Weld Ring Loose Flange, 9, PJ/PR Flat Weld Ring Loose Flange, 10, Reducer Flange, 11, Stainless Steel Flange, 12, Pressure Vessel Flange, 13, American Standard Flat Welding Flange, 14, American Standard SO Flat Weld Neck Flange, 15, American Standard WN Weld Neck Flange
Commonly used sealing surface form codes for flanges: raised surface RF, concave surface FM, convex surface M, tenon surface T, groove surface G, full plane FF, ring connection surface RJ
Commonly used implementation standards for flanges: my country's current flange standards are divided into two systems, namely PN series (European system) and Class series (American system). The pressure marking specified in this standard is divided into PN marking and Class marking. PN marking has 12 pressure levels, namely: PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160; PN250; PN320; PN400. Class marked with 6 pressure levels, namely: Class 150; Class 300; Class 600; Class 900; Class1500; Class 2500. The executive standards include GB series (National Standard), JB series (Department of Machinery), HG series (Ministry of Chemical Industry), ASME B16.5 (American Standard), BS4504 (British Standard), DIN (German Standard), JIS (Japanese Standard) .
National standards: GB/T9112-2010, GB/T9119-2010, GB/T9116-2010, GB/T9115-2010
Ministry of Chemical Industry Standards: HG/T20592-2009, HG/T20615-2009, HG5010-52～HG5028-58, HGJ44-91～HGJ65-91, HG20592-97
American Standard: ASME B16.5, ASME B16.47
Mechanical Department Standard: JB81-59～JB86-59, JB/T79-94～JB/T86-94, JB/T74-1994- 304 Stainless Steel Flange
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