TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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26MnB5, 34MnB5, Hign Precision Cold Drawn Welded Steel Tube
1. Production Method:
The cold drawn welded Steel tube is produced by drawing ERW (electric resistance welded tube).
During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity
and surface finish is closely controlled to produce tube of the required size and mechanical property
characteristics.
2. Main Date
Material: E235, E355, 26MnB5, 34MnB5, Q345B, STK490, 45#, 20Mn2, 30CrMo etc.
Outer Diameter Range:25-80 mm
Wall Thickness Range: 1-8 mm
t/D ≥ 0.2(Normal: t/D=0.1)
Standard: En10305-2
Process: Cold Drawn
3. Steel Grade and Chemical Compositions
| Steel Grade | C | Si | MN | P | S |
| Steel Name | max | max | max | max | max |
| E155 | 0.11 | 0.35 | 0.7 | 0.025 | 0.025 |
| E195 | 0.15 | 0.35 | 0.70 | 0.025 | 0.025 |
| E235 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 |
| E355 | 0.22 | 0.35 | 1.60 | 0.025 | 0.025 |
6. Deliver condition:
