Carbon Steel Plates
Carbon Steel Plates are flat-rolled steel products widely used in construction, manufacturing, and heavy industry due to their strength, durability, and versatility. These plates come in various thicknesses and sizes and are primarily composed of iron and carbon, with trace amounts of other elements to enhance mechanical properties. Carbon steel plates are categorized by carbon content—low, medium, and high carbon grades—each offering different levels of hardness, strength, and weldability. They are commonly used for structural components, pressure vessels, shipbuilding, bridges, and industrial machinery. Their excellent machinability and ability to be heat-treated make carbon steel plates a preferred choice for applications requiring high strength and toughness.
Carbon Steel Plates - Specifications
| Parameter | Description / Options |
|---|---|
| Standards | ASTM A36, ASTM A283, ASTM A516, ASTM A572, ASTM A537, EN 10025, JIS G3101 |
| Grades | A36, A283 Grade C, A516 Grade 70, A572 Grade 50/60, A537 Class 1, S235JR, S275JR, S355JR |
| Thickness | 3 mm to 300 mm (varies by grade and standard) |
| Width | 1000 mm to 3000 mm (typical) |
| Length | 2000 mm to 12000 mm (typical) |
| Surface Finish | Hot Rolled, Cold Rolled, Pickled & Oiled |
| Mechanical Properties | Varies by grade; Tensile Strength 400-650 MPa; Yield Strength 250-450 MPa |
| Applications | Construction, Shipbuilding, Pressure Vessels, Bridges, Industrial Fabrication |
| Testing | Ultrasonic, Magnetic Particle, Tensile Test, Impact Test |
Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| A36 | 400 - 550 | 250 (min) | 23 (min) | 120 - 160 |
| A283 Grade C | 415 - 550 | 250 (min) | 21 (min) | 120 - 160 |
| A516 Grade 70 | 485 - 620 | 260 (min) | 21 (min) | 150 - 190 |
| A572 Grade 50 | 450 - 620 | 345 (min) | 23 (min) | 140 - 190 |
| A537 Class 1 | 485 - 620 | 350 (min) | 20 (min) | 150 - 190 |
| S235JR (EN 10025) | 360 - 510 | 235 (min) | 26 (min) | 120 - 160 |
| S355JR (EN 10025) | 470 - 630 | 355 (min) | 22 (min) | 140 - 190 |
Chemical Composition
| Grade | C (max %) | Mn (%) | P (max %) | S (max %) | Si (%) | Other Elements |
|---|---|---|---|---|---|---|
| A36 | 0.26 | 0.60-0.90 | 0.04 | 0.05 | 0.10-0.40 | Cu max 0.20% |
| A283 Grade C | 0.26 | 0.85 max | 0.04 | 0.05 | 0.10-0.40 | — |
| A516 Grade 70 | 0.27 | 0.85 max | 0.035 | 0.035 | 0.10-0.35 | — |
| A572 Grade 50 | 0.23 | 1.35 max | 0.04 | 0.05 | 0.15-0.40 | Cu 0.20%, V 0.02%, Nb 0.02% |
| A537 Class 1 | 0.28 | 1.00 max | 0.035 | 0.035 | 0.10-0.35 | — |
| S235JR (EN 10025) | 0.17 | 1.40 max | 0.035 | 0.035 | 0.50 max | — |
| S355JR (EN 10025) | 0.22 | 1.70 max | 0.035 | 0.035 | 0.50 max | — |