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   Site:Home >> Products Showing>> Double Wall Weld Steel Tube

Double Wall Weld Steel Tube


The main features:The inner surface of high cleanness, good strength and elongation, showing good re-processing and no leakage in high pressure; anti-blasting in high-pressure, long time anti-corrosion properties after surface treatment. They are the ideal material for condenser, evaporation, automotive tubing. We can supply the users with any length bending tubes and straight steel tubes to meet meet the customer's needs.

The Demension And Mechanical Properties' Table Of Double-wall Weld Steel Tube

OD (mm) WT(mm) Minimal bursting pressure(mpa) Elongation Inside surface rating(g/m2) Ób Ós
§4 0.51   ≥20 ≤0.16 ≥290 ≥200
§4.76 0.70 110 ≥20 ≤0.16
§6 0.70 85 ≥20 ≤0.16
§6.35 0.70 78 ≥20 ≤0.16
§8 0.70 67.5 ≥20 ≤0.16
§9 0.70 61 ≥20 ≤0.16
§10 0.70 55 ≥20 ≤0.16
§12 0.70 32 ≥20 ≤0.16


The Surface Treatment Of Double-wall Weld Steel Tube
1.Galvanizing


Variety Passivation Type
White Chromate Passivation
Yellow
Five Color
Olive

2.Plastic Tube (PVF) And Epoxy Resin Coated Tube (EPOXY)

The main features:
Printing PVF or EPOXY on the galvanized and passive steel tube, PVF and EPOXY tube has a strong anti-corrosion ability. They are mainly used in producing high-level automobile.

3.Coated Nylon (PA12) Tube

The main features:Zinc Zn- free -chromium passivation – nylon coated (PA12) tubes. They have a strong anti-corrosion capabilities, combined with a solid coating, impact resistance, aesthetic appearance, particularly with the requirements of environmental protection. They are mainly used in the hard tube system of high-level automobile.

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