Stainless steel seamless elbows are mainly used at pipe turns and can also be called seamless steel pipe elbows. Seamless elbow fittings are also divided into hot-rolled (extruded) seamless elbow fittings and cold-drawn (rolled) pipe fittings due to their different manufacturing processes. ) Seamless elbow pipe fittings, available in round pipes and special-shaped pipes.
The different standards for stainless steel seamless elbows are mainly as follows:
【Japanese Standard】
Standard No. Description JIS B2311 General purpose steel butt welding pipe fittings
JIS B2312 Steel butt welding pipe fittings
JIS B2313 steel plate butt welding pipe fittings
JIS B2316 Steel socket welded pipe fittings
【American standard】
Standard number Description
ASME/ANSI B16.9 Factory Made Forged Steel Butt Weld Fittings
ASME/ANSI B16.11 Socket Weld and Threaded Forged Fittings
ASME/ANSI B16.28 Steel Butt Weld Small Radius Elbows and Return Bends
ASME B16.5 Pipe Flanges and Flange Accessories
MSS SP-43 Forged Stainless Steel Butt Welding Pipe Fittings
MSS SP-79 Socket Weld Reducing Insert
MSS SP-83 Socket Weld and Threaded Unions
MSS SP-97 Integral Reinforced Pipe Seats for Socket Weld, Threaded and Butt Weld Ends
【Electricity Standard】
Standard number Description
GB2000 Typical Design Manual for Steam and Water Pipe Parts and Components of Thermal Power Plants
DL/T515-93 power station elbow
D-GD87-1101 Typical design of pipe parts and components
【Chemical Industry Standards】
Standard number Description
HGJ514 carbon steel, low alloy steel seamless butt welding pipe fittings
HGJ528 steel seamed butt welded pipe fittings
HGJ10 forged steel socket welded pipe fittings
HGJ529 Forged Steel Socket Weld, Threaded and Butt Weld Pipe Stands
【Sinopec Standard】
Standard number Description
SH3408 -1996 Steel butt welded seamless pipe fittings
SH3409-1996 Forged steel socket welded pipe fittings
SH3410-1996 Forged steel socket welded pipe fittings
SH3065-1994 Technical Standard for Sharp Bends of Petrochemical Tube Furnaces
【National standard】
Standard number Description
GB/T12459-2017 Steel butt welding pipe fittings types and parameters
GB/T13401-2017 Technical specifications for steel butt welded pipe fittings
GBT 14383-2008 Forged socket weld and threaded pipe fittings
GB/T17185-1995 steel flange fittings
【Petroleum Standard】
Standard number Description
SY/T0510-1998 Steel butt welding pipe fittings
SY/T5257-2004 Steel elbow
02S403 National building standards for steel pipe fittings
【Marine Standard】
GB/T10752-1995 Marine steel pipe butt welding joints
CB/T3590-94 aluminum brass elbow