Exploring the Diverse Properties and Applications of Metal Injection Molding (MIM) Materials-1
Metal Injection Molding (MIM) is an advanced manufacturing process that merges the design flexibility of plastic injection molding with the material performance of powder metallurgy. It is particularly suitable for producing high-volume, complex, and precision metal components. Based on the MIM material properties data from ElementPlus, this article provides an overview of several key MIM material categories—highlighting their compositions, characteristics, and potential applications—to assist engineers, purchasers, and product designers in material selection.
1. Stainless Steels
Stainless steels are among the most widely used MIM materials, offering a balance of corrosion resistance, strength, and surface finish.
MIM-316L: Compliant with MPIF 35, this low-carbon variant (C ≤ 0.03%) provides excellent corrosion resistance (≥ 96 h) and high elongation (≥ 50%). Ideal for medical devices, food processing equipment, and marine applications.
Characteristic Properties of Sintered Parts
MIM-316LH: An internally developed grade with higher carbon and nitrogen content, offering enhanced yield strength (≥ 250 MPa) while maintaining good corrosion resistance.
MIM-304L: Standards: GB/T 20878
MIM-17-4 PH: A precipitation-hardening stainless steel that achieves high tensile strength (≥ 1050 MPa after heat treatment) along with good mechanical properties and moderate corrosion resistance. Suitable for high-stress structural components.
Conclusion
The MIM process supports a remarkably diverse material portfolio—from common stainless steels and irons to advanced titanium, copper, and specialty alloys. Material selection should be guided by the component’s operational environment, mechanical requirements, corrosion resistance, surface finish needs, and cost considerations. With ongoing advancements in material formulations and process refinements, MIM continues to expand its role in high-precision, high-performance manufacturing across industries.
This article is based on the internal technical document “MIM Material Properties” provided by HKY-TECHNIK. Data is for reference only. For specific material selection, please consult with your MIM supplier and conduct appropriate validation.
ShenZhen HuaKaiYu Technology Co, Ltd.
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