Metal Injection MoldingMetal injection molding (MIM) is an effective way to produce complex and precision-shaped parts from a variety of materials. This process produces parts for 50% less than the cost of CNC machining or casting. MIM is able to produce parts with complex shapes, superior strength and excellent surface finish with high volume manufacturing.

From design and tooling to production and quality engineering with in-depth technical and engineering expertise.

MIM / PIM materials used (press to open)

Chemistry Grade  Density Size Hardness Application Data
PIM / MIM Powder
HR304(L)
Stainless Steel
Powder
Atomized
Cr:18-20
Ni:8-12
C:0.08(0.03)
Si:1max
Mn:2max
Fe:bal.
304(L) app.4.1-4.5
tap.>4.9
g/cm3
150um
75um
45um
15um
34.5HRC MIM part weight:0.03-200g
Apparent relative density>95%
Sinter density>7.6g/cm3
sinter temperature:1360-1380c
Shrinkage rate:1.18
HR316(L)
Stainless steel
powder
Atomized
Cr:16-18
Ni:10-14
Mo:2-3
C:0.08(0.03)
Si:1max
Mn:2max
Fe:bal.
316(L) app.4.1-4.5
tap.>4.8
g/cm3
150um
75um
45um
15um
36HRC MIM part weight:0.03-200g
Apparent relative density>95%
Sinter density>7.8g/cm3
sinter temperature:1360-1380c
Shrinkage rate:1.18
HR174PH
Stainless steel
powder
Atomized
Cr:15.5-17.5
Ni:3-5
Nb:0.15-0.45
Cu:3-5
C:0.07
Si:1max
Mn:1max
Fe:bal.
17-4PH app.4.1-4.5
tap.>4.8
g/cm3
150um
75um
45um
15um
35HRC MIM part weight:0.03-200g
Apparent relative density>95%
Sinter density>7.8g/cm3
sinter temperature:1360-1380c
Shrinkage rate:1.18
HR420
Stainless steel
powder
Atomized
Cr:12-14
C:0.25max
Si:1max
Mn:1max
Fe:bal.
420 app.4.1-4.5
tap.>4.8
g/cm3
150um
75um
45um
15um
HRC50 MIM part weight:0.03-200g
Apparent relative density>95%
Sinter density>7.8g/cm3
sinter temperature:1360-1380c
Shrinkage rate:1.18
HR430
Stainless steel
powder
Atomized
Cr:16-18
C:0.12max
Si:1max
Mn:1max
Fe:bal.
430 app.4.1-4.5
top.>4.8
g/cm3
150um
75um
45um
15um
HRC51 MIM part weight:0.03-200g
Apparent relative density>95%
Sinter density>7.8g/cm3
sinter temperature:1360-1380c
Shrinkage rate:1.18
HR70Cr Cr:65-70
C:0.06(0.03)
Si:1.0max
S:0.03max
P:0.03max
70Cr / -75um
-45um
/ As additive for special part require anti-wear and anti-corrosion, like auto valve shaft guide pipe, seat etc.
HR60Mo Mo:60-65
C:0.04max
S:0.15max
P:0.06max
Si:1.5max
60Mo / 75um
45um
37um
25um
/ As additive for special part require anti-wear and anti-corrosion, like auto valve shaft guide pipe, seat etc.
HRCr12Mo Cr:10
Mo:1.5
C:0.06
Mn:0.1
S:0.022
P:0.022
Si:1.0
Fe:bal.
12CrMo / 75micron
53micron
45micron
/ this alloy powder contain Cr and Mo content, can provide good anti-wear, anti-corrosion performance, it is usually to produce special part which need above performance.
HRMnS Mn:62-65
S:33-36
O:0.5
Other: 1max
MnS / 300mesh
D95:10-12micron
/ As additive, function is lubricaiton.
HRFeC1#
Carbonyl Iron powder
Fe:98%min
C:0.8%max
N:0.6%max
O:0.4%max
CF1-1 App.:2.2min
Tap:4.0min
D10:0.5-1.0um
D50:2.0ummax
D90:3.0-5.0um
/ /
HRFeC1#
Carbonyl Iron powder
Fe:98%min
C:0.8%max
N:0.6%max
O:0.4%max
CF1-2 App.:2.5min
Tap:3.9min
D10:0.6-1.5um
D50:2.0-3.0um
D90:4.5-8.0um
/ /
HRFeC1#
Carbonyl Iron powder
Fe:98%min
C:0.8%max
N:0.6%max
O:0.4%max
CF1-3 App.:2.5min
Tap:3.8min
D10:1.0-3.0um
D50:3.0-5.0um
D90:5.0-12.0um
/ /
HRFeC1#
Carbonyl Iron powder
Fe:98%min
C:0.9%max
N:0.7%max
O:0.4%max
CF1-4 App.:2.2min
Tap:3.5min
D10:1.5-3.5um
D50:5.0-6.0um
D90:11.5-16.5um
/ /
HRFeC2#
Carbonyl Iron powder
Fe:99.5%min
C:0.05%max
N:0.01%max
O:0.2%max
CF2-2 App.:2.5min
Tap:3.8min
D10:0.9-3.0um
D50:3.0-5.0um
D90:5.5-12.0um
/ /
HRFeC2#
Carbonyl Iron powder
Fe:99.5%min
C:0.05%max
N:0.01%max
O:0.2%max
CF2-3 App.:2.5min
Tap:3.6min
D10:1.5-3.0um
D50:5.0-8.0um
D90:10-18um
/ /
Other Carbonyl Iron powder we have more than 20grades, please contact our sales to get more details

MiMfactories / Devision of Rockleigh Industries Inc. uses the latest wire EDM technology which is fully integrated with CAD/CAM. Using this technology, skills and experience we deliver a complete manufacturing solution for every project and application.

metal injection molding processOur services include prototyping, design, in-house tool production, wire EDM, specialist tool transfer service, high-quality manufacturing and logistics. We specialize in pressed metal parts with tolerances as low as one micron. Press from 5 tons to 160 tons.

We do selective plating, metal finishing, de-burring, polishing, degreasing and heat treatment. Our in-house tooling facility manufacturing led frames and other metal components. Rockleigh Industries are specialists in complex materials and hard metals to manufacture stainless steel parts. Stainless steel stamping project. High-speed insertion or welding of precious metal contacts.

Carbonyl Iron Powder

Carbonyl Iron Powder

Stainless steel powder 316L

Stainless steel powder 316L

Stainless steel powder 17-4PH

Stainless steel powder 17-4PH

About Metal Injection Molding

Metal Injection Molding works similar to the other injection molding processes – powdered metal is combined with a binding material and then injected into a mold where it’s left to form and curate. The end result is a metal part. The process is ideal for the short and long-run production of metal parts, especially those that are smaller in size and more detailed in terms of properties. Here’s a closer look at the MIM process:

  • Mixing and Granulating: The first step in the metal injection molding process is determining the material and feedstock that is going to be used to create the parts. (For more on material range, see the section near the bottom of this article.) Generally, this consists of fine powdered metals – a powder that is fine enough to create the features that are necessary. After the metal powder is determined, it’s mixed with a thermoplastic binder (often which takes up 40 percent of the total feedstock), heated so that the metal grains bond with the binder and then fed into the injection molding machine.
  • Molding: The next step is the molding process, where the material is again heated and then injected into the machine for the molding process, which is the point where the part is created.
  • Binder Removal: After the part is ejected, the next step is to remove the binder. That’s because the final part is about 20 percent larger than the intended end part. Hence, in order to get it to actual size, the binder needs to be removed.
  • Sintering: The final step in the process involves sintering, where the remaining binder is removed from the part and the metal is fused to create the part, the end result being a net shape or close to net shape final part. Further post-sintering operations may also be necessary to properly create the final part, which can add some further steps and complexities to the process.

All in all, MIM is comparable to creating products from bar stock metal, both in terms of tensile strength and design capability. Here’s a further look at the metal injection molding process and whether it’s the right production process for your MiMfactories™ part run.

For more information on MiMfactories™ metal injection molding and to determine if MIM is the best process for your part run, contact one of our specialists today.

Small - medium - high order quantity

Product materials of cast iron, cast steel, super duplex, SST, copper based & aluminum based alloys.

  • CNC milling (Aluminum, brass, steel, zinc alloy, many others )
  • Sheet metal (Steel, Aluminum, many others)
  • Die Casting (ADC12,etc);
  • Finish :remove bur, sandblast, anodized, painting, printing, plating, high polish, mirror polish, blackening, powder coating, etc.

Here below please find some pictures we have made recently:

CNC milling die casting

FOR FAST QUOTE EMAIL US: 2D/3D DRAWINGS