According to make materials can be divided into: WCB (carbon steel), LCB (low temperature carbon steel), LC3 (3.5% stainless steel belt neck butt weld steel flange nickel steel), WC5 (1.25% chromium 0.5% MuGang), WC9 (2.25% chromium) and C5 (5% chromium % mo), C12 (9% chromium 1% mo), CA6NM (4 (12% chrome), CA15 (4) (12% chromium), CF8M (316 stainless steel), CF8C (347 stainless steel), CF8 (304 stainless steel) and CF3 (304 L stainless steel), CF3M (316 L stainless steel), CN7M (alloy steel), M35-1 (monel), N7M (hastelloy B), CW6M (haas tower nickel alloy C), CY40 (inconel)
Take the neck flat welding with neck flat welding flanges flanges sketch (HG20592-2009 (PN series), HG20615-2009 (calss series), GB/T9116), neck height is low
Neck butt welded steel pipr flange