42CrMo4 QT Steel Bar
42CrMo4 QT Steel bar
42CrMo4 belongs to the European standard high-strength alloy structural steel, the implementation standard: EN 10083-3-2006, this material has high strength and toughness, hardenability is also good, no obvious tempering brittleness, high fatigue limit and resistance to multiple shocks after tempering treatment, low temperature impact toughness is good. 42CrMo steel is suitable for the manufacture of large and medium-sized plastic molds requiring certain strength and toughness.
The chemical composition of 42CrMo4 is as follows:
Chemical composition % of steel 42CrMo4 (1.7225): EN 10083-3-2006
| C | Si | Mn | P | S | Cr | Mo |
| 0.38 - 0.45 | max 0.4 | 0.6 - 0.9 | max 0.025 | max 0.035 | 0.9 - 1.2 | 0.15 - 0.3 |
echanical properties of steel 42CrMo4 (1.7225)
| Nominal diameter (mm): | to 16 | 16 - 40 | 40 - 100 | 100 - 160 | 160 - 250 | 250 - 330 | 330 - 660 |
| Rm - Tensile strength (MPa) (+QT) | 1100-1300 | 1000-1200 | 900-1100 | 800-950 | 750-900 | 700 | 600 |
| Nominal thickness (mm): | 0.3 - 3 |
| Rm - Tensile strength (MPa) (+A) | 620 |
| Rm - Tensile strength (MPa) (+AC) | 630 |
| Nominal thickness (mm): | to 8 | 8 - 20 | 20 - 50 | 50 - 80 |
| Rm - Tensile strength (MPa) (+QT) | 1100 | 1000 | 900 | 800 |
| Rm - Tensile strength (MPa) (+C) | 720 |
| Rm - Tensile strength (MPa) (+LC) | 670 |
How to make 42CRMO4/DIN1.7225 steel?
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