JIS G3106 SM490B Specification is for Rolled Steels for Welded Structure.
JIS G3106 SM490B steel Specification (mm) Thick: 6 to 300, Width: 1500 to 4050, Length: 3000 to 27000
JIS G3106 SM490B chemical composition:
| Grade | Chemical elements | CThk≤50 | C50 | Si max |
Mn max | P max. |
S max. |
| SM490B | %,by mass | 0.18 | 0.20 | 0.55 | 1.6 | 0.035 | 0.035 |
JIS G3106 SM490B 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 SM490B | ≥325 | ≥315 | ≥295 | ≥295 | ≥285 | ≥275 | 490-610 | ≤5 >5-16 >16-50 >40 |
No5 No1A No1A No4 |
≥22 ≥17 ≥21 ≥23 |
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