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.