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JIS G3106 Standard Specification is for Rolled Steels for Welded Structure.
SM490YB steel used in machinery parts, boom, crane, chassis , buildings bridges and mobile equipment.
JIS G3106 SM490YB steel chemical composition:
Grade | Chemical elements | C Thk≤100 | Si max | Mn max | P max. | S max. |
| SM490YB | %,by mass | 0.20 | 0.55 | 1.6 | 0.035 | 0.035 |
JIS G3106 SM490YB welded structure steel mechanical properties:
Grade | Yield strength N/mm2 | Tensile strength N/mm2 | Elongation | |||||||
| Thickness, mm | Thickness mm | Test sample | % | |||||||
| ≤16 | >16-40 | >40-75 | >75-100 | >100-160 | >160-200 | |||||
| JIS G3106 SM490YB | ≥365 | ≥355 | ≥355 | ≥325 | - | - | 490-610 | ≤5 >5-16 >16-50 >40 | No5 No1A No1A No4 | ≥19 ≥15 ≥19 ≥21 |
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