Black Phosphated Precision Seamless Steel Tube Carbon With 4mm - 60mm OD

Black Phosphated Precision Seamless Steel Tube Carbon With 4mm - 60mm OD

Specifications:

Size:OD:4mm-60mm,WT:0.5mm-7mm

Standard:DIN2391/C,EN10305-4,SAEJ524

Material: ST35,ST37,ST37.4,ST44.4,ST52.4,E235,E355,SAE1010

Delivery State:NBK+Black phosphate.

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.

Surface Cleaness:clean without iron scrap,dust,better for hydraulic system life.

Properties:better extending rate and strength property,after bending with no deformation,after flattening and 

flaring process with no crack and surface no spot.

Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.