|
GneeGrade : |
JIS G3106 SM490A |
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Specification (mm) |
THK: 6 to 300, Width: 1500 to 4050, Length: 3000 to 27000 |
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Standard: |
JIS G3106 Standard Specification is for Rolled Steels for Welded Structure. |
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Approval By Third Party |
ABS, DNV, GL, CCS, LR , RINA, KR, TUV, CE |
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Classification: |
Controlrolled weldable fine grain structural steels |
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SM490AChemical Composition |
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Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Cu (min) |
|
|
SM490A |
0.20-0.22 |
0.55 |
1.65 |
0.035 |
0.035 |
- |
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Grade |
SM490AMechanical Property |
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|
Thickness |
Yield |
Tensile |
Elongation |
|
|
SM490A |
mm |
Min Mpa |
Mpa |
Min % |
|
t≦16 |
325 |
490-610 |
17 |
|
|
16<t≦90 |
295-315 |
490-610 |
23 |
|
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Equivalent steel grade of SM490A |
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|
Europe |
Belgium |
Germany |
France |
Italy |
Sweden |
India |
USA |
U.K |
|
S 355 JR |
AE 355 B |
|
E 36-2 |
Fe 510 B |
SS21,32,01 |
IS 961 |
A633 gr A,C,D |
50 B |
SM490A is a low alloy, high-strength structural steel under the JIS G3106 standard, designed for welded structures that require higher strength than SM400 series while maintaining good toughness and weldability.
It provides a minimum yield strength of 325 MPa and a tensile strength range of 490–610 MPa, making it suitable for medium-to-heavy load-bearing applications.
Typical Applications:
Bridges, trusses, and structural frameworks
Used in components that demand higher load capacity and superior structural reliability, such as main girders, beams, and supporting trusses.
Industrial machinery and equipment bases
Ideal for heavy-duty machinery frames, support platforms, and load-bearing structures where elongation ≥20% ensures safe bending, cutting, and welding.
Cranes, lifting equipment, and transport platforms
High yield and tensile strength allow SM490A to withstand dynamic loads and shock during industrial operations.
Offshore structures and civil engineering projects
Suitable for coastal and marine environments, ensuring long-term durability under environmental stress.
Storage tanks, steel platforms, and large infrastructure
Provides high strength-to-weight ratio, reducing material usage while maintaining safety in large-scale construction.
