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Use of Alloy Steel is mainly in automobile industry and machinery parts.
| MATERIAL | CHEMISTRY | Application | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AISI/ASTM | EN | DIN | JIS | C | SI | Mn | P | S | Cr | W | Mo | |
| 4340 | EN24 | 40NiCrMo84 | 0.40 | 0.25 | 0.65 | 0.03 | 0.04 | 1.2 | 1.5 | 0.37 | Used in construction of aircrafts and heavy vehicles for crankshafts, gearshafts, camshafts and propellor shafts etc. | |
| 52100 | EN31 | 100Cr6 | 0.45 | 0.25 | 0.8 | 0.03 | 0.03 | General engineering and mould basis. | ||||
| EN353 | 20NiCrMo5 | .20 MAX | .35 MAX | .50 - 1.00 | .040 | .040 | .75 - 1.25 | .08 - .15 | Machining components. | |||
| 8620 | S620 | 21NiCrMo2 | 0.20 | 0.80 | 1.70 | 0.020-0.025 | 0.010-0.015 | 1.50 | 0.70 | Machining components. | ||
| 4140 | 4140 | 42CrMo4 | .38 - .43 | .20 - .35 | .75 - 1.00 | .035 | .035 | .80 - 1.10 | Machining components. | |||
| 16Mncr5 | 16MnCr5 | .14 - .19 | .15 - .40 | 1.00 -1.30 | .035 MAX | .035 MAX | .80- 1.10 | Machining components. | ||||
| 5120 | 20Mncr5 | 20MnCr5 | .17 - .22 | .10 - .35 | 1.10 - 1.40 | .035 | .035 | 1.00 - 1.30 | Machining components. | |||
