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Pipe Bends

The pipe bend is made by using a whole set of bending mould. It is largely used in various types of equipment and pipeline to convey oil, gas, liquid, and other media. For the airplane and its engine, the curved pipe plays an important role.

Pipe Bends
Standard
GBJ 235 Specification for Industrial Pipeline Construction and Acceptance (Metal Pipeline Part)
DJ 56 Technical Specification for Electric Power Construction and Acceptance (Pipeline Part)
SDGJ 6 Technical Regulations for Thermal Power Plant Steam Piping Stress Calculation
DL 5007 Technical Specification for Electric Power Construction and Acceptance (Thermal Power Plant Welding Part)
JB 3965 Steel Pressure Vessel Magnetic Powder Inspection
ZB·JO 4 005 Penetration Testing Method
GB 231 Metal Brinell Hardness Test Method


Dimension
Type Outside Diameter Wall Thickness
Seamless Bend Pipe 0.5-24 inches (DN15-DN600) sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs, sch5s, sch20s, sch40s, sch80s (Max. Value of 200mm)
Butt Welded Curved Pipe 6-60 inches (DN150-DN1500)



Material
Carbon SteelASTM/ASME A234 WPB, WPC
Alloy SteelASTM/ASME A234 WP 1, WP 12, WP 11, WP 22, WP 5, WP 91, WP 911
Stainless SteelASTM/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 SteelASTM/ASME A402 WPL 3, WPL 6
High Performance SteelASTM/ASME A860 WPHY 42, 46, 52, 60, 65, 70

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