For Fluid Transportation Service.
GB/T8163 10,20,Q295,Q345
Annealed,Normalized
Chemical Composition Inspection,Mechanical Properties Test(Tensile Strength,Yield Strength,Elongation,Flaring,Flattening,Bending,Hardness)Surface and Dimension Test,Non-destructive Test,Hydrostatic Test.
Oil-dip,varnish,Passivation,Phosphating,Shot Blasting
O.D 19.05-168.3mm
W.T 2.31-14.27mm