JIS Carbon High Strength Steel Plate SS490 SS540
SS490 alloy steel plate is a low-alloy high-strength structural steel with high strength and high toughness. The yield point varies according to the thickness.
The chemical composition of SS490 high strength low alloy structural steel contains appropriate amounts of carbon, silicon, manganese and other elements, which can ensure good comprehensive performance. SS490 high strength steel sheet has good weldability and plasticity, and is easy to perform various processing operations.
SS540 alloy steel plate is a high-strength structural steel with good impact resistance and can absorb large energy when subjected to force.
SS540 low alloy steel sheet has high tensile strength, uniform material, easy to cut, bend and weld, and is suitable for various engineering projects.
SS490 SS540 high tensile steel plate engineering application areas
Construction industry: used for the frame, support and other parts of steel structure buildings to improve the bearing capacity and safety of buildings.
Machinery manufacturing: manufacturing various mechanical parts, such as gears, bearings, etc.
JIS Low-alloy High-strength Steel Plate Chemical Composition and Mechanical Property
| Grade | Chemical composition % MAX | ||||||||
| C | Mn | P | S | ||||||
| SS490 | ~ | ~ | 0.05 | 0.05 | |||||
| Mechanical properties MIN | |||||||||
| Yield strength (N/MM2) | Tensile strength (N/MM2) | Elongation % |
|||||||
| TH(MM) | ≤16 | >16≤40 | >40≤100 | >100 | 490-610 | 15 | |||
| 285 | 275 | 255 | 245 | ||||||
►Mechnical property for SS540 high tensile steel
| Thickness (mm) | ||||
| SS540 | ≤ 16 | > 16 ≤ 40 | > 40 ≤ 100 | > 100 |
| Yield strength (≥Mpa) | 400 | 390 | 390 | 390 |
| Tensile strength (Mpa) | 540 | |||
►Chemical composition for SS540 high strength low alloy steel
| C | Mn | P | S | Other alloy elements may added |
| 0.30 | 0.30 | 0.040 | 0.040 |
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