No.133 Zhongshan East Road, Shijiazhuang, Hebei,050011, China
86-311-86035019, 86034508, 604 889 6787, 86-10-61459588
86-13901044907
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Double Wall Steel Tube
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Applicable to braking tubing, fuel tubing, air supply tubing, motor
fuel tubing and machine oil tubing systems for automobile
manufacturers, we can provide Zinc coating, Zinc-Aluminum alloy
coating, and Aluminum-Zinc alloy coating service according to
client's requirement. In addition, white and olive green
passivation, PVF and PVDF coating services are available.
First, the deep impact extrusion steel BHG2 made in Shanghai Bao Steel Co., Ltd is cold rolled to precision steel strip, and then the precision steel strip is converted to a copper coated steel strip on a continuous copper coating line. This copper coated steel strip is the base material of double wall welded tube.
Technical Standard for Double Wall Welded Tubing used Steel strip
Copper Coating & Cutting Technical Standard for Double Wall Welded Tubing used Steel Strip
Chemical Composition | Tension Test (Standard Length 50 mm) | ||||||
C | Si | Mn | P | S | Yield Strength | Tensile Strength | Elongation Rate |
MPa | % | ||||||
0.03-0.035 | ≤0.02 | 0.1-0.2 | <0.02 | ≤0.01 | ≥160 | ≥300 | ≥40 |
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