We mainly produce 90 degree elbow according to GB,HG,ASME,ANSI,API,EN,BS,DIN,JIS,KS,GOST,AS.Elbows are split into three groups, which define the distance over which they change direction. Commonly, according to the distance of direction changing, the elbows are divided into the following three kinds: Short Radius Elbow (SR Elbow), Long Radius Elbow (LR Elbow), Customized Radius Elbow.

ST37 ANSI 4inch 90 Degree Weld Elbow
ST37 ANSI 90 Degree Elbow Size:
Seamless steel elbow:1/2″-30″ DN15-DN900
Welded elbow: 4″-72″ DN100-DN1800
ST37 ANSI 4inch 90 Degree Weld Elbow Schedule/Wall Thickness:
sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100,
sch120, sch140, sch160, xxs.
ANSI 4inch 90 Degree Weld Elbow Material:
Carbon steel: ASTM A234 WPB, S235,P235GH,ST35.8,ST37,SS400,ST20,C20,Q235
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP91-WP9,
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low-temperature steel: ASTM/ASME A420 WPL3-WPL6
High performance carbon steel: ASTM A860 WPHY42 , WPHY46,WPHY52, WPHY60, WPHY65, WPHY70
Heibei Haihao group was founded in 1982,which is widely manufacturing several of elbows.We are a professional manufacture factory specialized in producing elbow and other types of butt weld pipe fittings.We have advanced production lines. We also supply a variety of nipple to satisfy our customers’ specific requirements. If you have any need about 90 degree elbow and other products,welcome to contact us.