Neway Precision Works Ltd R&D Team

 Welcome to the fascinating world of Metal Injection Molding (MIM) , a process that combines the design flexibility of plastic injection molding with the strength and integrity of wrought metals. The importance of material selection in MIM cannot be overstated. The choice of material directly influences the final product's performance, durability, and application. This blog aims to provide a comprehensive overview of the various alloy options available in MIM , their properties, and their implications for part designers and purchasers. MIM Alloy Options Download PDF: All Metal Injection Molding Material  Datasheet Material Types Common Grade Low Alloy Steels MIM 4605, MIM 4140, MIM 4340, MIM 2700, MIM 2200, MIM 52100, MIM 8620, MIM 9310 Magnetic Alloy MIM-Fe-50Ni, MIM-Fe-3Si, MIM-Fe-50Co, MIM-2200 (Fe-2%Ni), MIM-430L Stainless Steel MIM-304, MIM-316L, MIM-17-4 PH, MIM-420, MIM-440C, MIM-430 Titanium Alloy Ti-6Al-4V (Grade 5), Ti-6Al-7Nb (Grade 26), Ti-5Al-2.5Fe (Grade 38), Ti-3Al-

  17-4 PH Metal Injection Molding 17-4PH stainless steel is a precipitation-hardening martensitic stainless steel that contains approximately 17% chromium and 4% nickel as its major alloying elements. It offers an excellent combination of high strength, good corrosion resistance, and ease of machinability. 17-4PH is widely used for metal injection molded parts because it can achieve high strength and hardness through heat treatment while retaining good corrosion resistance and excellent mechanical properties. The metal injection molding process combines the advantages of plastic injection molding with excellent properties of 17-4 PH. Plastic injection molding process allows high complexity for 17-4 PH MIM parts. Precipitation hardening heat treatment allows 17-4PH MIM parts to attain high tensile strength, yield strength, and hardness needed for demanding applications. Common 17-4 PH Grade Used in MIM Download PDF: MIM 17-4 PH Datasheet Typical 17-4 PH has five grades, including 17-4

Stainless Steel Optional for MIM The most commonly metal injection molded stainless steels are 304 and 316/316L due to their excellent corrosion resistance and easier fabrication. Precipitation-hardening alloys can achieve very high strength through aging but are more difficult to MIM. Some common stainless steel alloys are used in metal injection molding (MIM) , including: 304 Stainless Steel 316L Stainless Steel 17-4 PH Stainless Steel 420 Stainless Steel 440C Stainless Steel 430 Stainless Steel 316 Stainless Steel MIM-Stainless Steel Material Comparison Austenitic grades offer the best corrosion resistance, martensitic grades have the highest hardness and strength, and ferritic grades provide an economical option when hardness is not critical. Here is a brief comparison of standard stainless steel alloys used in metal injection molding (MIM): 304: Austenitic stainless steel. Excellent corrosion resistance and good formability. Lower strength and hardness. It is commonly used for con