| |
| Application |
High temperature – suitable also for bending and flanging |
| Standard specification |
ASTM A 335 – ASME SA 335 |
| Manufacturing process |
Seamless |
| Steel grade |
Alloy steel with chrome – molybdenum |
| P1 – P2 – P5 – P9 – P11 – P12 – P22 – P91 |
| Supplied heath-treated in compliance with standards |
Tolerance
|
• Thickness |
| + not indicated (weight-allowance defined) |
| -12,50% |
| • Outside diameter |
| O.D. ≤ 48,3 ± 0,4 mm. |
| 48,3 ≤ O.D. ≤ 114,3 ± 0,79 mm. |
| 114,3 ≤ O.D. ≤ 219,1 + 1,59 mm. – 0,79 mm. |
| 219,1 ≤ O.D. ≤ 323,8 + 2,38 mm. – 0,79 mm. |
| O.D. > 323,8 ± 1% |
| • Line weight |
| +10% – 3,5% if O.D. ≤ 323,9 |
| +10% – 5% if O.D. > 323,9 |
| • Ovalization |
| Within the O.D. allowance |
| • Straightness |
| Straight at sight |
| Length |
According to manufacture range unless otherwise stated |
| Ends |
Plain or bevelled ASTM |
| Surface |
Normally supplied as rolled |
|
