1.1 This specification2 covers heat-treated carbon-manganese-silicon steel plates intended for fusion welded pressure vessels and structures.
1.2 Plates furnished under this specification are available in the following three classes:
8201; | 8201; | 8201; | Yield | Tensile |
8201; | 8201; | 8201; | Strength, | Strength, |
8201; | Heat8199; | Thickness,8199; | min, ksi | min, ksi |
Class | Treatment8199; |
| [MPa] | [MPa] |
| ||||
1 | Normalized | 21/2 in. and | 50 | 70 |
|
| Over 21/2 to 4 in. | 45 | 65 |
|