24 July 2021 Mould Steel Bar
4Cr5MoSiV1 Mould Steel Bar
4Cr5MoSiV1 is a Chinese brand of H13 air quench hardening hot work die steel imported from the United States. Its properties and uses are basically the same as 4Cr5MoSiV steel, but because of its higher vanadium content, its medium temperature (600 degrees) performance is better than 4Cr5MoSiV steel. It is a representative steel grade with a wide range of uses in hot work die steel.
4Cr5MoSiV1 steel is C-Cr-Mo-Si-V steel, which is widely used in the world. At the same time, many scholars from various countries have conducted extensive research on it and are exploring the improvement of chemical composition. Steel is widely used and has excellent characteristics, mainly determined by the chemical composition of steel. Of course, the impurity elements in steel must be reduced. Some data show that when Rm is 1550MPa, the sulfur content of the material is reduced from 0.005% to 0.003%, which will increase the impact toughness by about 13J. The NADCA 207-2003 standard stipulates that the sulfur content of premium H13 steel should be less than 0.005%, while the sulfur content of superior should be less than 0.003%S and 0.015%P.
Chemical composition:
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | V |
|---|---|---|---|---|---|---|---|---|---|
| 0.32-0.45 | 0.80-1.20 | 0.20-0.50 | ≤0.030 | ≤0.030 | 4.75-5.50 | 1.10-1.75 | ≤0.25 | ≤0.30 | 0.80-1.20 |
Mechanical Properties:
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate (@20°C/68°F, varies with heat treatment) | 1200 – 1590 MPa | 174000 – 231000 psi |
| Tensile strength, yield (@20°C/68°F, varies with heat treatment) | 1000 – 1380 MPa | 145000 – 200000 psi |
| Reduction of area (@20°C/68°F) | 50.00% | 50.00% |
| Modulus of elasticity (@20°C/68°F) | 215 GPa | 31200 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |