Precision Carbon Steel Mechanical Tubing , Black Phosphated Hydraulic Tube

Precision Carbon Steel Mechanical Tubing , Black Phosphated Hydraulic Tube

Speficification: 

• Size:OD4mm-60mm,TH0.5mm-7mm
• Standard:EN10305-4 /DIN2391/C
• Material:ST35,ST37.4,ST37,ST45,ST52,ST52.4,E235,E255,E355,SAE1010,SAE1020.
• Delivery State:NBK+ Black phosphated
• Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.
• Length:5.8m,6m.
• Package:Bundles or wooden cases,with caps of ends.

Features:

• Surface Anti-rust:good property of antirust,both outside and internal tube surface flushing with anti-rust oil.
• Surface Color: Bright black color is homogeneously distributed on the tube surface.
• Surface quality:very smooth and bright without oxide scale,pock,strach,crack and other defects..
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