50EE SM520B
| 50EE BS4360 | Comparision of steel grades | |
| CSAG40-21 | - | |
| IS | - | |
| JIS 3101 | - | |
| JIS 3106 | SM 520 B | |
| ISO 630 | - | |
| ASTM | - | |
Chemical Composition
| Grade | Chemical Composition, [%] | |||||||
| C. max | Si. | Mn. max | P. max | S. | Nb. | V. | Normal supply Condition (1),(2) | |
| 50EE | 0.18 | 0.10- 0.50 | 1.50 | 0.040 | 0.030 | 0.003-0.10 | 0.003-0.10 | Normalized |
Mechnical Properties
| Grade | Minimun charpy V-notch impact Test value | Minimum elongation,A, On a gauge length[1] | Mimimun yield strength,Re, For thickness (in mm) [2] N/m㎡ | Tensile Strength Rm[1] N/m㎡ [6] | ||||||||
| Thickness mm [5] | Energy Min. [J]value | Temp. ℃ | 80mm [3] | 200mm [4] | 5.65 √So | ≤16 | 16-40 | 40-63 | 63-100 | 100-150 | ||
| 50EE | 75(10) | 27 | -50 | 20% | 18% | 20% | 355 | 345 | 340 | 325 | 305 | 490/640(8)(9) |
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