Standard: DIN2391/C/ EN10305-1 /EN 10305-4
Material:ST35,ST37.4,ST37,ST45,ST52,ST52.4,E235,E255,E355,SAE1010,SAE1020
OD:6MM-16MM,WT:1-15mm
Delivery State:NBK/GBK.
Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.
Length:5.8m,6m.
Package:Bundles or wooden cases.
Surface Anti-rust:Both outside and internal tube surface flushing with anti-rust oil.
Surface quality:very smooth and bright without oxide scale,pock,strach,crack and other defects..
High working pressure,better extending rate and strength property,after bending with no deformation,after flattening and flaring process with no crack.
Test:Tensile Strength Test,Flaring and flattening test ,Hardness Test,Chemical Compositon Test
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