Flange classification

1. According to the standard of chemical industry: Integral flanges (IF), threaded flanges (Th), flat welding flanges (PL), butt welding flanges (WN), butt welding flanges (SO), socket welding flanges (SW), butt welding ring loose flange (PJ/SE), flat welding ring loose flange (PJ/RJ), lined flange cover (BL(S)), flange cover (BL).
2, according to the petrochemical industry standard: thread flange (PT), butt welding flange (WN), flat welding flange (SO), socket welding flange (SW), loose sleeve flange (LJ), flange cover (note not listed).
3, according to the standard of the machinery industry: integral flange, butt welding flange, flat welding flange, butt welding ring plate loose sleeve flange, flat welding ring plate loose sleeve flange, flanging ring plate loose sleeve flange, flange cover.
4, according to the national standard: integral flange, thread flange, butt welding flange, neck flat welding flange, neck socket welding flange, butt welding ring with neck loose sleeve flange, flat welding flange, butt welding ring plate loose sleeve flange, flat welding ring plate loose sleeve flange, flange cover.

Material
Stainless steel butt-welded steel pipe flange with neck
WCB (carbon steel), LCB (low temperature carbon steel), LC3 (3.5% nickel steel), WC5(1.25% chromium 0.5% molybdenum steel), WC9 (2.25% chromium), C5(5% chromium 0.5% molybdenum), C12 (9% chromium 1% molybdenum), CA6NM(4 (12% chromium steel), CA15(4) (12% chromium), CF8M (3) 16 stainless steel), CF8C (347 stainless steel), CF8 (304 stainless steel), CF3 (304L stainless steel), CF3M (316L stainless steel), CN7M (alloy steel), M35-1 (Monel), N7M (Hastert nickel alloy B), CW6M (Hastert nickel alloy C), CY40 (Inke nickel alloy), etc


Post time: May-25-2022