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ERW Steel Pipe Manufacturing Process Flow Chart

ERW Steel Pipe Manufacturing Process Flow Chart

Manufacturing Specification

Product ERW
Technique High Frequency Electric Resistance Welding
Usage Foundation Piling, Offshore Line Pipe, Oil & Gas Transmission, Sour Service, etc.
Standard EN10219, EN10210, EN10217, API 5L PSL1/PSL2, API 2B, ASTM 53, ASTM A500, ASTM A672, ASTM 252, DIN 2458, IS 3589, GB/T3091, GB/T9711, etc.

S235, S275, S355, S450, Gr. B PSL1, X42 PSL1, Gr. B PSL2, X46 PSL1, X46 PSL2, X52 PSL1, X52 PSL2, X60 P
Dimension OD 88.9 – 660mm
Thickness 3.05-15.9mm
Length ~18m
Surface Bare, Epoxy, 3PE, 3PP, Hot-Dipped Galvanized, Zinc, Vanish, Bitumen, etc.

Online Inspection Facilities

UT Ultrasonic Test

Radiographic Test

Hydrostatic Pressure Test

Flattening Test

Online Flaw Detection for Coils

Online Flaw Detection for Plates

Online NDT Flaw Detection for Welding Seam

Charpy V-notch Test

Drop Weight Test

Spectroscope

Metallographic Microscope