Tongcheng supplies fine stainless steel powders for precision MIM parts, with material selection, custom particle sizes and injection and sintering support.
Engineering focus: Stainless steel powder for metal injection molding (MIM)
Review the material, particle-size, process and validation factors that matter for this application.
The alloy sets the property direction; particle size affects feedstock behavior and the sintering window.
Powder test data alone cannot predict actual part performance.
Validation must return to the customer’s part and repeatable production.
Stainless steel powder suited to MIM
Powder for MIM must balance feedstock flow, cavity filling, debinding efficiency, sintering activity, shrinkage and surface quality. Tongcheng matches the grade and particle-size distribution to the part.
Core materials and applications
17-4PH suits structural parts requiring strength and corrosion resistance; 440C targets high-hardness, wear-resistant tools; 439 addresses corrosion resistance and thermal cycling. Austenitic and project-specific alloys can also be developed.
From powder to molding and sintering
Tongcheng combines powder production, sieving and blending, injection molding and sintering to help optimize feedstock behavior, injection defects, shrinkage, dimensions and final properties.
Discuss your powder project
Share the process step, operating conditions and part result you want to improve.
- Current material, powder or production issue
- Part geometry, equipment, forming and sintering conditions
- Available test results, defect photos or dimensional data
- Target improvement, purchasing volume and destination country
Technical references for this page
These references explain materials, processes or test methods. Third-party product data does not represent Tongcheng product specifications.

