Welded High Strength Low Alloy Structural Steel Pipe ASTM A847 Material
ASTM A847 Welded High-Strength Low Alloy Structural Pipes
Size range: O.D.: 6-1626mm W.T.:1-15.88mm L: according to customer requirement
Steel Grade and Chemical Compositions:
| Steel Grade and Chemical Compositions | ||||
| C≤ | Mn≤ | P≤ | S≤ | Cu≥ |
| 0.24 | 1.40 | A | 0.06 | 0.80B |
Mechanical Properties:
| Tensile strength min Mpa | 483 |
| Yield strength min Mpa | 345 |
| Elongation min % | 19A |
Manufacture:
Tubes are made by welded process.
Welded tubing shall be made from flat-rolled steel by the electric-resistance welding or electric-fusion welding process.
Workmanship, Finish, and Appeaerance:
All tubing shall be free from defects and shall have a workmanlike finish.
Surface imperfections shall be classed as defects when their depth the remaining wall thickness to less than90% of the specified nominal wall thickness.
Test and Inspection:
- Mechanical Test
- Tension Test
- Flattening Test
- - Hardness Test
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