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PRODUCT DESCRIPTION
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Bend Technical Parameters
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Steel Type |
API 5L PSL1 & PLS2, Alloy Steel, Stainless Steel |
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Bend Radius R |
Typical 3D, 4D, 5D, 6D, 7D, 8D, 9D, 10D etc |
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Bend Angle θ |
Typical 15°, 30°, 45°, 60°, 90° etc |
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Tangent Length L |
Recommended D ≤ 508mm, L > 250mm (e.g.: 300mm, 350mm);
D > 508mm, L > 500mm (e.g.: 750mm, 1000mm)
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Outside Diameter OD |
As per specified by the clients |
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Wall Thickness T |
Typical Std, Sch10, Sch20, Sch30, Sch40, Sch60, Sch80 etc |
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Bevel End Type |
ASME B16.25 |
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Bend Tolerances Requirements
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Bend Radius |
±1%R |
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Bend Angle |
±0.5° |
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Bend Plane |
±1° |
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End Squareness |
D ≤ 914, ±2.4mm; D > 914, ±3mm |
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Linear Dimensions |
D ≤ 610, ±5mm; D > 610, ±6mm |
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Wall Thickness |
Tmin ≥ 90% of the nominal mating wall thickness or specified minimum wall thickness |
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Ovality |
(Dmax-Dmin) ≤ 3% of the nominal mating pipe outside diamter within the bend;
(Dmax-Dmin)≤ 1% at the welding end
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Outside Diameter |
≤ 1% of the nominal mating pipe outside diameter |
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Inside Diameter ID |
Welding Ends：D ≤ 914, ±2.5mm; D > 914, ±3mm |
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Body：> 97% of the minimum specified matching pipe internal diameter at any location in the bend |
