Investment Casting Alloys Compositions
The tables below list some common investment casting alloys' compositions.
Investment Casting Alloy Compositions (%)
| Component | Al | Si | Fe | Cu | Mg | Mn | Zn | Ti |
| A356 | 91.2 - 93.1 | 6.5 - 7.5 | 0.13 - 0.25 | Max 0.1 | 0.3 - 0.45 | Max 0.05 | Max 0.05 | Max 0.2 |
| Component | Al | Cu | Fe | Mg | Mn | Si | Ti | Zn |
| A514.2 | 94.2 - 96.4 % | <= 0.10 % | <= 0.30 % | 3.60 - 4.50 % | <= 0.10 % | <= 0.30 % | <= 0.20 % | <= 0.10 % |
| Component | Al | B | C | Cr | Fe | Mn | Mo | Ni | S | Ti | W | V |
| SUS 304 | <= 0.35 | 0.0010 - 0.010 | <= 0.080 | 13.5 - 16.0 | 60 | <= 2.0 | 1.0 - 1.50 | 24.0 - 27.0 | <= 0.030 | 1.90 - 2.35 | 3.0 - 4.50 | 0.10 - 0.50 |
| Component | C | Cr | Fe | Mn | Mo | P | Si | S |
| AISI 4140 | 0.380 - 0.430 % | 0.80 - 1.10 % | 96.785 - 97.77 % | 0.75 - 1.0 % | 0.15 - 0.25 % | <= 0.035 % | 0.15 - 0.30 % | <= 0.040 % |
