Hebei Zexu Pipe Manufacturing Co., Ltd.
Hebei Zexu Pipe Manufacturing Co., Ltd.
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We can supply stainless steel butt weld fittings according to ASME, EN, DIN, JIS and GB standards. The major grades are SS 304/304L/304H and 316/316L. We can manufacture the size from 1/2″ to 48″ for elbows and bends, concentric and eccentric reducer, straight and reducing tee, cap and stub end.
Weight Formula of Stainless Steel Pipe Bends
| The weight formula: 0.0433 x (D-T) x T x R x θ / 100000 + L |
| D = Outside Diameter |
| T = Thickness |
| R = Bend Radius |
| θ = Bend Angle |
| L = Weight of Double Sides Straight Length |
What is Bend Radius and Angle for Steel Pipe Bending?
Usually R≥3D , such as R= 3D, 4D, 5D, 6D, 7D, 8D, 9D, 10D
Normally 15°, 30°, 45°, 60°, 90°, 135°, 180° or at customer’s option.
What is the Straight Length?
Normally straight length of pipe bends are between 300mm and 1500mm. Also can be customized as per customer’s requirements.
Material Grades for Steel Pipe Bends
Carbon Steel 90 Degree Bends
ASTM A234 WPB, A106B, A860 WPHY42, 52, 60, 65, 70, A420 WPL 3 / 6 / 9
Alloy Steel 45 Degree Bends
ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22, WP91
Stainless Steel Pipe Bends
ASTM A403 WP304/304L/304H, WP316/316L, WP310, WP317, WP321, WP309, WP347
Duplex Steel 180 Degree Bends
ASTM A815 UNS S 31803, 32205, 32550, 32750, 32760