Stainless steel flat welding flange

Stainless steel flat welding flange refers to the flange manufactured by processing stainless steel base material. Commonly used stainless steels include 304, 304L, 316, 316L, etc. Stainless steel flat welding flange is one of the commonly used flanges in fluid pipeline construction due to its simple manufacturing and low cost. Flat welding flange belongs to any type of flange, and there are two types of flange rings: those with necks and those without necks. Flat welding flanges are welded by inserting pipes into flanges, but their rigidity and sealing are not as good as neck welding flanges. Flat welding flanges are widely used for connecting medium and low pressure vessels and pipelines

Stainless steel flat welding flange, also known as flange plate, is a component that connects pipes to each other. There are holes on the flange, and bolts tightly connect the two flanges. Flange connection refers to a detachable connection composed of flanges, gaskets, and bolts that are connected to each other as a combined sealing structure. Pipeline flange refers to the flange used for piping in pipeline devices, and used on equipment refers to the inlet and outlet flange of the equipment. Seal the flanges with gaskets. Flanges are divided into threaded flanges and welded flanges

Stainless steel flat welding flange processing materials: (304, 304L, 316, 316L, S30408, S30403, S31608, S31603, SUS304, ASTM A403, TP321, TP317L, 347, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 1Cr18Ni9Ti, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2, etc.); Dual phase stainless steel: (F51, S31803, S2205, F53, 2507, S32750, F55, 2607, S32760, etc.)

Common types and codes of flanges: 1. PL plate flat welding flange, 2. SO neck flat welding flange, 3. WN neck flat welding flange, 4. SW socket welding flange, 5. Th threaded flange, 6. BL flange cover, 7. Eight character blind plate, 8. PJ/SE neck welding ring loose flange, 9. PJ/PR flat welding ring loose flange, 10. reducing flange, 11. stainless steel flange, 12. pressure vessel flange, 13. American standard flat welding flange, 14. American standard SO neck flat welding flange, 15. American standard WN neck welding flange, 16. Stainless steel flat welding flange. Common sealing surfaces for flanges. Form code: RF convex surface, FM concave surface, M convex surface, T tenon surface, G groove surface, FF full plane, RJ ring connection surface. Common execution standards for flanges: The current flange standards in China are divided into two systems, namely the PN series (European system) and the Class series (American system). The pressure markings specified in this standard are divided into PN markings and Class markings. The PN label has 12 pressure levels, namely: PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160; PN250; PN320; PN400。 The Class label has 6 pressure levels, namely: Class 150; Class 300; Class 600; Class 900; Class1500; Class 2500。 The implementation standards include GB series (standard), JB series (mechanical department), HG series (chemical department), ASME B16.5 (American standard), BS4504 (British standard), DIN (German standard), JIS (Japanese standard)

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 Standards: ASME B16.5, ASME B16.47