About MIM

Metal injection molding (MIM) is a typical product of cross-disciplinary, integrating two different processing technologies (plastic injection mold and powder metallurgy).

It makes designer get rid of tradition and gets low-cost and heterogenic stainless steel, nickel, iron, copper, titanium and other metal parts via plastic molding.

Through this method, designer can have freedom of design.




Process

Price quote: Based on your product design/drawing, KUM will confirm wether product can be produced by MIM with your expected material,

and wether all your requirements such as tolerance can be achieved, then KUM will quote price for both injection mold and product.

Construction organization: KUM will work on injection mold construction untill your final confirmation.

Samples testing: KUM do molding and test production till samples is approved by you.

Production: With your approval of the samples testing,we enter production.



Material properties

KUM mainly use stainless steel 17-4,316,420 and 440C.

May you need any others material please check with us.


MECHANICAL&PHYSICAL PROPERTIES:

Alloy

Tensile  

Strength

Yield  

Strength (0.2%)

Impact StrengthMacro (apparent)Young's ModulusPoisson's RatioElongationDensity
MPaMPaJGpaRatio% in 25.4mmg/cm3
MIM-17-4 PH (as sintered)89673014027 HRC1900.2967.5
MIM-17-4 PH (heat treated)1186108914033 HRC1900.2967.5
MIM-17-4 H9001206108940 HRC97.7
MIM-17-4 H1100100091034 HRC127.7
MIM-316L51717519067 HRB1900.28507.6
MIM-420 (HIP&vacuum heat treated)173712828245 HRC3.57.7
MIM-440C (HIP&heat treated)1655124111549 HRC17.6


COMPOSITION:

%MIM-17-4 PH
(as sintered)
MIM-17-4 PH (heat treated)MIM-17-4 H900MIM-17-4 H1100MIM-316LMIM-420 (HIP and vacuum heat treated)MIM-440C (HIP and heat treated)
Iron (max)Bal.Bal.Bal.Bal.Bal.Bal.Bal.
Nickel (max)3.0-5.03.0-5.03.0-5.03.0-5.010.0-14.0
Molybdenum--------2.0-3.0--.75 Max
Silicon1.0 Max1.0 Max1.0 Max1.0 Max1.0 Max1.0 Max
Carbon.07 Max.07 Max.07 Max.07 Max0.03.15-.4.95-1.2
Chromium15.5-17.515.5-17.515.5-17.515.5-17.516.0-18.012.0-14.016.0-18.0
Cobalt--------------
Manganese1.0 Max1.0 Max1.0 Max1.0 Max2.0 Max1.0 Max
Copper3.0-5.03.0-5.03.0-5.03.0-5.0--
Niobium.15-.45.15-.45--.15-.45--
Aluminum------------
Magnesium------------
Titanium------------
Zirconium------------
RoHS Compliant


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