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Steel Pipes with a longitudinal (resistance) Weld GB/T 13793 Spec:Material:08# 10# Q195 Q215 Q235 Q345Size Range:OD:4-1200mm WT:0.3-200mm General Length:4-12mTolerance:According to the following tables or customers’ request. Table 1 Tolerance of Outer Diameter Unit:mmOuter Diameter(D)General Precesion(PD.A)aHigher Precision(PD.B)High Precision(PD.C)5-20±0.30±0.15±0.05﹥20-35±0.40±0.20±0.10＞35-50±0.50±0.25±0.15＞50-80±1%D±0.35±0.25＞80-114.3±0.60±0.40＞114.3-168.3±0.70±0.50＞168.3

Electric-Resistance-Welded Low Carbon tube ERW steel pipe for Bending and Flaring SpecificationsStandard:Electric-Resistance-Welded Low Carbon tube ERW steel pipeMaterial:SAE1010, SAE1020, SAE1026 etc.Application: 1. Bending Tube2. Flaring Tube3. Boiler Pipe4. Automotive Industry5. Chemistry industry6. Electric industrySurface Treatment:1.Bared2.Black Painted (varnish coating)3.Galvanized4.Oiled5.PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating.Sizes: OD:5-500