Hebei Chiho socket welding flange stainless steel tube industry (Stainess Steel): ASTM A182 F304,304L, F316,316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321,18-8; socket welding flange steel (Alloy Steel): ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11,16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8 / Ⅲ; socket welding flange manufacturing standards: ANSI B16.5, HG20619 -1997, GB / T9117.1-2000-GB / T9117.4-200, HG20597-1997. Chiho sealing surface in the form of Hebei Industry with neck flat welding flange are: raised face (RF), concave (FM) 316 stainless steel flange, convex (M), the tongue surface (T), the groove surface (G) Stainless law Langhe, the whole plane (FF). With neck flat welding flange diameter range: DN10 ~ DN600 Scope: PN series PN2.5 ~ PN40; Class series Class150 ~ Class1500 flange material: carbon steel, Luo molybdenum steel, 304,316,304L, 316L, 321,347, CF8C. Manufacturing process: forging. Advantages: with neck flat welding flange welded flange belong, because there is a short-necked, thereby increasing the strength of the flange improves the bearing strength of the flange. It can be used in higher pressure pipelines. Stainless steel flange manufacturers | stainless steel flanges | Hebei Chiho Chiho by Hebei Industry Co., Ltd. Hebei Chiho Pipe Co., Ltd. (www.hbqh628.com) (www.hbqh628.com) strong, credible, Cangzhou in Hebei forging industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hebei Chiho into the brilliant and you work for a better future!