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[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
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Verified Suppliers
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ASTM A524 DWST Double Wall Welded Steel Tube Low Carbon steel for automotive
Copper brazed double wall steel tube is made of steel strips which is copper plated on both sides.It has widely applied for automobiles,refrigerators and the other hydraulic system industries.
Dimension and specification
| O.D. mm | Thickness mm | Weight g/m | Assurance pressure kg/cm3 |
| 4.76 | 0.7 | 70.28 | 350 |
| 6.00 | 0.7 | 91.76 | 350 |
| 6.35 | 0.7 | 97.75 | 350 |
| 7.00 | 0.7 | 108.75 | 350 |
| 7.14 | 0.7 | 111.17 | 350 |
| 8.00 | 0.7 | 126.31 | 350 |
Tolerance
O.D. and W.T. +/-0.08mm
Chemical Composition
C ≤ 0.12%
Mn ≤ 0.50%
P≤ 0.04%
S≤ 0.045%
Mechanical properties
Tensile strength ≥30kgf/mm2
Yield point ≥18kgf/mm2
Elongation(50mm)≥25%
Hardness(HR30T)≤ 65
Expand test Take 3 samples of 200mm,expand the pipe outside dimension to larger than 25%
Internal cleanliness Particle and oil ＜0.194g/m2
