Metal Injection Molding Materials for Custom Electronic, Structural and Magnetic Parts

PolyAlloys Injected Metals manufactures electronic, structural and magnetic parts and components in a wide variety of metals and alloys. PolyAlloys is experienced in the use of super alloys and a wide variety of hard metals to manufacture precision components. Please review the properties of our standard metals along with information about their specific applications. For additional information and assistance, please give us a call at 310.715.9800.

Mechanical and Physical Properties of MIM Materials:

Low Alloy Steel - Stainless Steel - Soft Magnetic Steel - Tungsten Carbide - Tungsten Heavy Alloy - Copper and Copper Alloys

Low Alloy Steel

Low Alloy Metals
MIM-2200
MIM-2700
MIM-4140
MIM-4605

Material Code	Typical Values
	Density	Tensile Properties			Young's Modulus	Un- notched Charpy Impact Energy	Hardness
	Density	Ultimate Strength	Yield Strength (0.2%)	Elong- ation (in 1 in.)	Young's Modulus	Un- notched Charpy Impact Energy	Macro	Micro
	g/cc	10³ psi	10³ psi	%	10⁶ psi	ft-lbf	Rockwell
MIM-2200 as-sintered	7.6	42	18	40.0	28.0	100	45 HRB
MIM-2700 as-sintered	7.6	60	37	26.0	28.0	130	69 HRB
MIM-4605 as-sintered	7.5	64	30	15.0	29.0	50	62 HRB
MIM-4605 quench/temper	7.5	240	215	2.0	29.5	40	48 HRC	55 HRC

Stainless Steel

MIM-316L

MIM-430L

MIM-17-4 PH As-sintered

MIM-17-4 PH Heat Treated

Material Code	Typical Values
	Density	Tensile Properties			Young's Modulus	Un-notched Charpy Impact Energy	Hardness		Corrosion Resistant
	Density	Ultimate Strength	Yield Strength (0.2%)	Elongation (in 1 in.)	Young's Modulus	Un-notched Charpy Impact Energy	Macro	Micro	H₂SO₄ g/dm²/day	CuSO₄	Boil Test (H₂O)
	g/cc	10³ psi	10³ psi	%	10⁶ psi	ft-lbf	Rockwell		H₂SO₄ g/dm²/day	CuSO₄	Boil Test (H₂O)
MIM-316L as-sintered	7.7	75	25	50	28	140	67 HRB		<0.005	Pass	Pass
MIM-430L as-sintered	7.5	60	35	25			65 HRB
MIM-17-4 PH as-sintered	7.6	130	106	6	28	50	32 HRC		<0.005	Pass	Pass
MIM-17-4 PH Heat Treated	7.6	172	158	6	28		40 HRC	44 HRC	<0.005	Pass	Pass

Soft Magnetic Steel

MIM-2200

MIM-Fe-50%Ni

MIM-Fe-3%Si

MIM-Fe-50%Co

MIM-430L

Material Code	Typical Values
	Magnetic Properties					Tensile Properties
	Max. Permeability / µ max	Hc	Br	B₂₅	B₅₀₀	Ultimate Strength	Yield Strength (0.2%)	Elong ation (in 1 in.)	Macro hardness
	kG	Oe	kG	kG	kG	10³ psi	10³ psi	%	HRB
MIM-2200	2,300	1.5	8.0	14.5	20.0	42	18	40	45
MIM-Fe-50%Ni Grade 1 Grade 2	47,500 27,000	0.13 0.20	10.0 10.0	14.0 14.0	15.0 15.0	66 66	23 23	30 30	50 50
MIM-Fe-3%Si Grade 1 Grade 2	8,500 6,000	0.7 1.0	12.0 12.0	14.5 14.5	19.5 19.5	77 77	57 57	24 24	80 80
MIM-Fe-50%Co	5,200	1.5	14.0	20.0	22.0	30	20	<1	80
MIM-430L	1,500	1.8	5.5	11.5	11.5	60	35	25	65

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Tungsten Carbide

Grade	Density	Hardness/HRA	TRS/PSI
MIM-WC-6Co	15.2	92.3	510,000
MIM-WC-9Co	14.6	91.4	525,000
MIM-WC-11.5Co	14.3	89.6	530,000
MIM-WC-20Co	13.55	86.0	470,000

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Tungsten Heavy Alloy

Grade	WNF-7129	WNF-5421	WNF-3515	WNF-2109
Mil. T-21014	Class 1	Class 2	Class 3	Class 4
SAE-AMS-T-21014	Class 1	Class 2	Class 3	Class 4
AMS 7725 B	7725B	—	—	—
ASTM-B-777-87	Class 1	Class 2	Class 3	Class 4
Minimum Density (g/cc)	16.85	17.15	17.75	18.25
Nominal W Content (wt.%)	90	92.5	95	97
Nominal Nickel Content (wt.%)	7.1	5.4	3.6	2.1
Nominal Iron Content (wt.%)	2.9	2.1	1.4	0.9
Maximum Magnetic Perm	n/a	n/a	n/a	n/a
Typical Hardness (HRC)	28	28	29	30
Modulus of Elasticity (x106 psi)	45	48	50	52
Ultimate Tensile Strength Min. (ksi)	120	120	120	110
0.2% Offset Yield Strength Min (ksi)	80	80	80	80
Minimum % Elongation (1" Gauge Length)	10	8	6	2