Heat treated carbon manganese silicon steel plates intended for fusion welded pressure vessels and structures such as Steel Boilers, Storage Tanks, Cryogenic Tanks, API 650 and API 620 Tanks. Higher yield and tensile strength compared to Class 1, making it suitable for applications in the oil, gas, and petrochemical industry.
According to both ASTM and ASME standards Class 2 plates shall be delivered in Quenched and Tempered condition.
The dimensional steel plate supply ranges from;
1/4 inches [6mm] up to 6 inches [150mm] in thickness
40 inches [1000mm] up to 160 inches [4050mm] wide
up to 82 feet [25m] long
Final chemical, mechanical properties, dimensions and tolerances are confirmed against the governing specification and purchase order.
| % | Carbon | Manganese | Phosphorus | Sulfur | Chromium | Molybdenum | Nickel | Copper |
|---|---|---|---|---|---|---|---|---|
| min. | - | 0.70 | - | - | - | - | - | - |
| max. | 0.24 | 1.35 | 0.035 | 0.035 | 0.025 | 0.080 | 0.25 | 0.35 |
| Thickness Range | Yield Strength (min) | Tensile Strength (min) | Tensile Strength (max) | Elongation (min) |
|---|---|---|---|---|
| up to 2 1/2" [65mm] | 60 ksi [415 MPa] | 80 ksi [550 MPa] | 100 ksi [690 MPa] | 22% |
| 2 1/2" [65mm] to 4" [100mm] | 55 ksi [380 MPa] | 75 ksi [515 MPa] | 95 ksi [655 MPa] | 22% |
| 4" [100mm] and up | 46 ksi [315 MPa] | 70 ksi [485 MPa] | 90 ksi [620 MPa] | 22% |
Material lists, drawings or heat requirements — our desk responds with a full RFQ within one business day.
