Torich International Limited
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Electric Welded Single Wall Steel Tube SAE JS 526 B for automobile uses
Electric welded single wall steel tube is used is used for automobiles and refrigerator industries.
Most product features are quite similar to double wall tube.
Technical specification shall be meet with JAM101-94 and SAE JS526 b for automobile uses.
Dimension and specification
| O.D.(mm) | Thickness(mm) | Weight(g/m) | Assurance Pressure(kg/cm3) |
| 4.00 | 0.50 | 43.21 | 250 |
| 4.20 | 0.50/0.70 | 45.68/60.50 | 250 |
| 4.76 | 0.70 | 70.18 | 250 |
| 6.00 | 0.70 | 91.61 | 250 |
| 6.35 | 0.70 | 97.66 | 250 |
| 8.00 | 0.7/1.0 | 126.18/172.85 | 200 |
| 9.53 | 0.7/1.0 | 152.63/210.63 | 200 |
| 10.0 | 0.7/1.0 | 160.75/222.24 | 200 |
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
Tolerance of wall thickness
+/-0.08mm
Bead height outside ＜1.0 mm,inside ≤0.2mm
outside ＜1.0 mm,inside ≤0.3mm
Expand test 4.200-10.00 max 20%
Internal cleanliness Particle and oil ＜0.194g/m2
Leak test press assurance pressure,No leak after 15min
