90 tungsten-molybdenum-nickel-iron alloy is an alloy composed of tungsten as a base and a small amount of nickel, iron, molybdenum and other alloying elements. It is produced by powder metallurgy. Because this material has a low expansion coefficient, high thermal conductivity, and good Due to its red hardness, it is widely used in the field of die-casting molds and anvil blocks in the field of hot forging valves.
Performance comparison of 90 tungsten molybdenum nickel iron alloy mold material and mold steel
| Mechanical Performance Indicators | Unit | 90WMONIFE | H-13 Steel |
| Room Temperature Mechanical Performance | |||
| Tensile Strength | MPa | 973 | 1610 |
| Yield Strength | MPa | 880 | 1320 |
| Elongation | % | 24 | 13.1 |
| Hardness | HRC | 36 | 45 |
| Modulus of Elasticity | GPa | 335 | 210 |
| UTS at 537°C | MPa | 733 | 979 |
| UTS at 648°C | MPa | 715 | 585 |
| UTS at 815°C | MPa | 475 | 141 |
| Coefficient of Thermal Expansion (20°C-400°C) | ×10^-6m/m/°C | 11.2 | 12.2 |
| Coefficient of Thermal Expansion (20°C-788°C) | ×10^-6m/m/°C | 14.5 | 13.5 |
| Thermal Conductivity | W/m/°F | 131 | 34.3 |
| Density | g/cm³ | 17.3 | 7.76 |
| 90WMONIFE Advantages | Results Obtained Using 90WMONIFE |
| 1. 较高的热疲劳寿命 (Higher thermal fatigue life) | 1. 更长的模具寿命 (Longer mold life) |
| 2. 减少铸件粘模及表面拉伤 (Reduced sticking and surface tearing of castings) | 2. 提高铸造效率 (Improved casting efficiency) |
| 3. 低的热容损率 (Low heat capacity loss rate) | 3. 更好的铸件表面质量 (Better surface quality of castings) |
| 4. 很高的热导率 (Very high thermal conductivity) | 4. 低的压铸次品率 (Low die casting defect rate) |
| 5. 较好的机械加工性能 (Good machinability) | 5. 有效降低单件铸件成本 (Effectively reduce the cost of single-piece castings) |
| 6. 材料可以重复利用 (Material can be reused) (模具失效效后可以继续加工成小尺寸的模芯或者热挤压模具) | 6. 降低厚壁部件的缩松、缩孔 (Reduce shrinkage and shrinkage holes in thick-walled parts) |
| 7. 模具加工前后都不需要热处理 (No need for heat treatment before or after mold processing) | 7. 更短的开模时间 (Shorter mold opening time) |
| 8. 模具可修复性强 (Strong mold repairability) | |
| 9. 90WMONIFE 焊条能有效修复模具 (90WMONIFE welding rods can effectively repair molds) |
More details of tungsten alloy product, please visit website: http://tungsten-alloy.com/
Please contact CHINATUNGSTEN for inquiry and order of tungsten alloy:
Email: sales@chinatungsten.com
Tel.: 86 592 5129595
