Stainless steel injection molding services provide corrosion resistant 316L, 17-4PH, 420 and 440 steel parts with excellent wear properties for precision applications across medical, aerospace, firearms and more.
Corrosion resistant 316L, 420, 440 and precipitation hardening grades like 17-4PH and 15-5PH are commonly injection molded stainless steels used for high strength, wear resistance and biocompatibility.
| Guideline | Description |
| Wall Thickness | Maintain uniform thickness for proper solidification. |
| Ribs and Bosses | Reinforce thin sections with ribs, add bosses for inserts. |
| Draft Angles | Include draft angles for easy ejection from the mold. |
| Fillets and Radii | Add fillets to reduce stress concentrations and sharp corners. |
| Gate Location | Place gates at thicker sections to ensure even filling. |
| Undercuts | Minimize undercuts to facilitate mold removal. |
| Material Selection | Choose stainless steel alloy based on corrosion resistance, strength. |
| Surface Finish | Indicate desired finish for aesthetics and function. |
| Tolerances | Specify tolerances considering shrinkage and dimensional accuracy. |
| Weld Lines | Avoid design features causing weak points due to weld lines. |
| Parting Line Location | Determine optimal parting line for easier mold separation. |
| Property | 17-4 PH Stainless Steel | 316L Stainless Steel |
| Tensile Strength (MPa) | 620 - 1100 | 485 - 620 |
| Yield Strength (MPa) | 345 - 1000 | 170 - 310 |
| Elongation (%) | 5~15 | 35 - 55 |
| Hardness (Rockwell C) | 30 - 50 | 25 - 35 |
| Density (g/cm³) | 7.7 - 7.8 | 7.9 - 8.0 |
| Corrosion Resistance | Excellent | Excellent |
| Magnetic Properties | Ferromagnetic | Non-magnetic |
| Heat Resistance | Good | Good |
| Chemical Resistance | Resistant to corrosive environments | Resistant to chemical exposure |
| Machinability | Moderate | Moderate |
Achieve high strength, corrosion resistance with stainless steel injection molding. Perfect for medical devices, aerospace, marine hardware and other demanding applications.
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