Metal Injection Molding

Metal Injection Molding Material Properties

MIM material need chemistry modification to withstand complex metal injection molding process. As various materials are available for metal injection molding, we divided these metal material into following types in functional area:

Ferrous alloys: steel, stainless steel, tool steel, low alloy steel, iron-nickel alloy, special ferrous alloys like Invar and Kovar.

Tungsten alloys: tungsten heavy alloys and tungsten-copper

Hard materials: cemented carbides (WC-Co), and cermets (Fe-TiC)

Special materials: precious metals, titanium alloys, cobalt-chromium, nickel, nickel-base super alloys, molybdenum, molybdenum-copper, and particulate composites

At ZCMIM, we specialize in stainless steel, low alloy steel and special alloys for MIM. In addition, we can also provide special or custom materials for any property requirement.

Contact us for your special metal choice, we can manufacture your precision MIM parts with many other materials.

Stainless Steel

Metal Injection Molding (MIM) process can achieve high density, enhance strength, ductility and corrosion resistance of stainless steel. All these materials are manufactured form pre-alloyed or elemental blend stainless steel with different grades as austenitic, ferritic, martensitic and precipitation hardening.

Stainless Steel 316L

Stainless steel 316L (UNS S31603) is widely applied in reason of its characteristics of high creep resistance, excellent form-ability, high corrosion and pitting resistance. This metal also has excellent elongation and ductility , and non-magnetic. Components of this metal are used in electronic, marine and medical industry. MIM stainless steel 316L is safe for food and water storage in reason of its high strength and corrosion resistance characters. These properties can resist potential of break down and chronic corrosion in contact with acids. Low carbon and high alloy consistence ensure MIM 316L is great fit for food grade application. ZCMIM has widely application in watch case, electronic component, watch strap with stainless steel 316L, in order to guarantee its great surface appearance and corrosion resistance requirement.

Composition

Stainless steel 316LIronNickelMolybdenumSiliconCarbonChromiumPhosphorusManganeseNitrogenSulfur
Percent by WeightBaL.10.00-14.002.00-3.000.750.0316.00-18.000.0452.000.100.030

Mechanical properties

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

Stainless steel 316L7.8g/cm³515Mpa175Mpa190J67HRB50%

Stainless Steel 304

Stainless steel 304(UNS No.S30400)has similar mechanical properties as 316L, while it’s less corrosion resistant than 316L. In addition, its material price is less than 316L.

Composition

Stainless steel 304IronNickelSiliconCarbonChromiumPhosphorusManganeseNitrogenSulfur
Percent by WeightBaL.8.00-10.500.750.0818.00-20.000.0452.000.100.030

Mechanical properties

MaterialDensityTensile

Strength

Yield Strength(0.2%)Macro

(apparent)

Elongation

(% in 25.4mm)

Stainless steel 3047.8g/cm³515Mpa175Mpa63HRB50%

Stainless Steel 420

Stainless steel 420 (UNS No. S42000) is combination of high strength, hardness and wear resistance with moderate corrosion resistance. This martensitic grade stainless steel is magnetic and less distortion with vacuum heat treatment. It’s always applied for automotive, aerospace, cutlery and tools.

Composition

Stainless steel 420IronSiliconCarbonChromiumPhosphorusManganeseSulfur
Percent by WeightBaL.1.000.1512.00-14.000.0401.000.030

Mechanical properties

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

Stainless Steel 4207.7g/cm³1737Mpa1282Mpa82J45HRC3.5%

Stainless Steel 440C

Stainless steel 440C (UNS No. S44004) is martensitic grade, this alloy has excellent strength, hardness and wear resistance. This stainless steel is used for high strength, hardness and wear resistance requirement, such as automotive, hand tools and sporting equipment.

Composition

Stainless steel 440CIronSiliconCarbonChromiumManganeseMolybdenum
Percent by WeightBaL.1.000.95-1.216.00-18.001.000.75

Mechanical properties as HIP&Vacuum Heat Treatment

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

Stainless steel 440C7.6g/cm³1655Mpa1241Mpa115J49HRC1%

Stainless Steel 17-4 PH

Stainless steel 17-4 PH (UNS No. S17400) is precipitation harden grade, this alloy provides good balance between corrosion resistance and strength. Its hardness can varied to different strength levels with different heat-treating temperature.

Composition

Stainless Steel 17-4IronNickelSiliconCarbonChromiumNiobiumManganeseCopperSulfur
Percent by WeightBaL.3.00-5.001.000.0715.50-17.500.15-0.451.003.00-5.000.03

In reason of low carbon content in stainless steel 17-4PH, it has better corrosion resistance than 400 series stainless steels. Modifying temperature during heating treatment can achieve wide rage of hardness and properties. This encourages its wide application in aircraft, dental , medical and surgical industries.

Mechanical properties as Sintered

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

Stainless Steel 17-4 PH7.5g/cm³896Mpa730Mpa140J27HRC6%

Mechanical properties as Heat treatment

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

Stainless Steel 17-4 PH7.5g/cm³1186Mpa1089Mpa140J33HRC6%

Mechanical properties of H900

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

stainless steel 17-4 H9007.7g/cm³1206Mpa1089Mpa140J40HRC9%

Mechanical properties of H1100

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

Stainless steel 17-4 H11007.7g/cm³1000Mpa910Mpa140J34HRC12%
ZCMIM projects

Start Your MIM Project Now


ZCMIM provide professional technology and experience team.

We are your reliable partner for every MIM project.

Low Alloy Steel

Fe-based alloy is also called as low alloy steel, which is generally used for structural applications, in reason of high hardness and strength in property.

MIM 4605

MIM 4605 has exceptional strength and good ductility through MIM process, it has wide usage in industry of automotive, consumer products and hand tools.

Composition

MIM-4605IronSiliconCarbonNickelMolybdenum
Percent by WeightBaL.1.000.40-0.601.50-2.500.20-0.50

Mechanical properties as Sintered

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

MIM-46057.5g/cm³440Mpa205Mpa70J48 HRB15%

Quench and temper heat treatment can be applied for this alloy, in order to create various strength and wear resistance properties. Normally, we can produce low hardness and high hardness special types as following:

Mechanical properties of Low Hardness(Quenched & Tempered)

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

MIM-46057.5g/cm³1151Mpa1034Mpa38J36 HRC3%

Mechanical properties of High Hardness(Quenched & Tempered)

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

MIM-46057.5g/cm³1655Mpa1480Mpa55J48 HRC2%

MIM Fe2.5%Si

MIM Fe2.5%Si is a hardenable steel with silicon compositions, which has good magnetic properties, tensile strength, hardness and wear resistance. It can be plated or coated for corrosion resistance. This alloy is used for armatures, relays and other electrical AC and DC applications.

Composition

MIM-Fe2.5%SiIronSiliconCarbonRoHS Compliant
Percent by WeightBaL.2.25-2.750.06Yes

Mechanical properties

MaterialDensityTensile

Strength

Yield Strength(0.2%)Macro

(apparent)

Elongation

(% in 25.4mm)

MIM-Fe2.5%Si7.6g/cm³483Mpa338Mpa82HRB24%

MIM Fe3%Si

MIM Fe3%Si has low core losses and high electrical resistance in AC and DC application, such as solenoids, armatures and relays. It is particular suitable for net shape forming by MIM method.

Composition

MIM-Fe3%SiIronSiliconCarbonRoHS Compliant
Percent by WeightBal.2.5-3.50.05Yes

Mechanical properties as Sintered

MaterialDensityTensile

Strength

Yield Strength(0.2%)Macro

(apparent)

Elongation

(% in 25.4mm)

MIM-Fe3%Si7.6g/cm³227Mpa151Mpa80HRB24%

MIM Fe50%Ni

MIM Fe50%Ni has hall mark magnetic properties of high permeability and low coercive field, it is widely used for magnetic shielding applications, such as motors, switches and relays.

Composition

MIM-Fe50%NiIronNickelSiliconCarbonRoHS Compliant
Percent by WeightBal.49-511.000.05Yes

Mechanical properties as Sintered

MaterialDensityTensile

Strength

Yield Strength(0.2%)Macro

(apparent)

Elongation

(% in 25.4mm)

MIM-Fe50%Ni7.8g/cm³468Mpa165Mpa50HRB30%
ZCMIM projects

Start Your MIM Project Now


ZCMIM provide professional technology and experience team.

We are you reliable partner for every MIM project.

Special MIM Alloy

These MIM material are manufactured from alloy powder or mixture of iron and other elements as nickel, chromium, cobalt and silicon. These alloys including some soft-magnetic materials, which is easily magnetized and demagnetized.

Copper Alloy

Copper alloy is commonly applied for its excellent thermal and electrical conductivity. Sintered copper parts can be treated as wrought copper parts in process of machining, plating, brazing, crimping and staking. Copper alloy has wide applications in miniaturization, sophistication design, thermal and electrical conductivity requirement. Such as heat sinks, fuel cells, sensors and computer processor chips.

Mechanical properties as Sintered

MaterialDensityTensile

Strength

Yield Strength(0.2%)Elongation

(% in 25.4mm)

Copper alloy8.5g/cm³165Mpa148Mpa30%

Titanium Alloy

Ti-6Al-4V (UNS R56400) is the most widely applied titanium in ZCMIM. It has excellent corrosion resistance, high strength-to-weight ratio, good fatigue resistance. It is normally used for medical implants and prosthese.

Composition

Ti-6Al-4VTitaniumAluminumVanadiumIronCarbon
Percent by WeightBalance5.5-6.753.50-4.500.300.08

Mechanical properties

MaterialDensityTensile

Strength

Yield Strength(0.2%)Macro

(apparent)

Elongation

(% in 25.4mm)

Ti-6Al-4V4.5g/cm³950Mpa920Mpa36HRC18%

Nickel Alloy

Nickel alloy is widely used for applications with electrical conductivity and corrosion resistance requirement.

Mechanical properties as Sintered

MaterialDensityMarco

(apparent)

Nickel alloy8.6g/cm³53HRC

ASTM F15

ASTM F15 (UNS 39121337) is also known as Kovar, which is a controlled expansion alloy applied for high integrity glass and ceramic to metal seals. It provide hermetic seals for electronic optical fiber and electronic package base, such as splitters, dual in-line packages and micro-electronic mechanical systems. Kavor is made of nickel, cobalt and iron. This alloy is design to satisfy technology demand in computer, microwave, semiconductor and space.

Composition

ASTM F15IronNickelMolybdenumSiliconCarbonChromiumCobaltCopperNiobium
Percent by WeightBaL.290.200.200.040.20170.200.10
MagnesiumTitaniumZirconiumAluminumRoHS Compliant
0.100.100.100.10Yes

Mechanical properties as Sintered

MaterialDensityTensile

Strength

Yield Strength(0.2%)Macro

(apparent)

Elongation

(% in 25.4mm)

ASTM F157.7g/cm³450Mpa305Mpa65HRB25%

ASTM F75

ASTM F75 (UNS R30075) is a no-magnetic Cobalt Chrome alloy. This alloy is widely applied in medical industry due to its excellent properties of bio-compatibility, corrosion resistance, high strength, non-magnetic , wear resistance. CoCr alloys are widely applied within orthopedics, powder generation and dental area.

Composition

ASTM F75IronNickelMolybdenumSiliconCarbonChromiumCobaltRoHS Compliant
Percent by Weight0.751.05.00-7.001.000.1526-30BaL.Yes

Mechanical properties as HIP

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

ASTM F758.3g/cm³992Mpa551Mpa177J25 HRC30%

ASTM F1537

ASTM F1537 (UNS R31537) has similar composition to ASTM F75, which is also widely used in medical industry with wear resistance, bio-compatibility, corrosion resistance and nonmagnetic properties.

Composition

ASTM F1537IronNickelMolybdenumSiliconCarbonChromiumCobaltNiobiumRoHS Compliant
Percent by Weight0.750.255.00-7.001.000.10-0.3526-30BaL.1.00Yes

Mechanical properties as HIP

MaterialDensityTensile

Strength

Yield Strength(0.2%)Impact

Strength

Macro

(apparent)

Elongation

(% in 25.4mm)

ASTM F15378.3g/cm³1103Mpa85Mpa80J32HRC27%