SM520C steel is high strength steel for welded structrual purposes. The excessive technical standard of SM520C steel is JIS G3106. SM520C steel can be rolled into SM520C steel plate, SM520C steel coil, SM520C steel sheet, SM520C steel strip. It can also be in forms of SM520C steel section, SM520C flat bar, etc.
JIS G3106 SM520C specs - SM520C steel chemical composition:
| C max. | Si max. | Mn max. | P max. | S max. |
| 0.20 | 0.55 | 1.65 | 0.035 | 0.035 |
JIS G3106 SM520C specs - SM520C steel mechanical properties:
| Yield strength (N/MM2) | Tensile strength (N/MM2) | Elongation % | |||||||
| TH(MM) | ≤16 | >16-40 | >40-75 | >75-100 | ≤100 | ≤5 | >5-16 | >16-50 | >40 |
| 365 | 355 | 335 | 325 | 520-640 | 19 | 15 | 19 | 21 | |
The common JIS G3106 SM520C specs:
Generally, the max. thickness for SM520C steel plate, SM520C steel coil, SM520C steel sheet, SM520C steel strip, SM520C steel section is 100mm. And the max. thickness for SM520C flat bar is 40mm. Upon agreement between the manufacturer and purchaser, the thickness of SM520C steel plate can reach 150mm.
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