<<BACK
P/M Material Specifications for Structural Parts (Ferrous)
Grade Material  Composition %  Typical Values Recommendations  Eqivalent Specifications 
Tensile
Strength
PSI
Yield
Strength
PSI
Elongation
% in 1"
Density
g/cc
Apparent
Hardness
I-8 Iron, Copper,
Carbon
Fe: 88.1
Cu: 7.0-9.0
C: 0.6-0.9
Other: 2.0 max
55,000 50,000 <0.5 6.0-6.4 HRB 65 This material is used where maximum wear resistance is required and when heat-treating is not practical. MPIF: FC - 0808 - 45
ASTM: B 783 - 93
DIN: SINT - C21
SAE: 864grade3,class3
I-10 Copper, Steel Fc: 87.2 - 90.5
Cu: 9.5 - 10.5
C: 0 - 0.3
Other: 2.0 max
30,000 26,000 <1.0 6.0 - 6.4 HRB 15 Bearing grade material with high strength and good shock loading ability. Used where both structural properties and bearing characteristics are required. MPIF FC - 1000 - 20
ASTM: B 783 - 93
SAE: 862
I-15 Iron, Copper,
Carbon
Fe: 91.1 - 95.4
Cu: 4.0 - 6.0
C: 0.6-0.9
Other: 2.0 max
68,000 60,000 <0.5 6.0 - 6.4 HRB 65 Excellent all purpose grade with or without heat-treatment. MPIF: FC - 0508-50
ASTM: B 783 - 93
DIN: SINT - C21
SAE: 864grade2,class3
I-31 Iron, Copper,
Carbon
Fe: 75 - 78
Cu: 18 - 22
C: 0.4 - 0.6
Other: 2.0 max
40,000 32,000 1 6.0 - 6.4 HRB 40 Material used for both bearing & structural parts.Excellent abrasion resistance. MPIF: FC - 2000 - 40
DIN: SINT - B20
I -40L Iron, Carbon

Heat Treat Properties
Fe: 97.4 - 99.7
C: 0.3 - 0.6
Other: 2.0 max
32,000


 60,000
23,000 1


<0..5
6.4 - 6.8


6.4 - 6.8
HRB 45


HRC 20
Used when moderate strength & hardness with extensive machining is required. Increased strength by hardening & tempering. MPIF: F - 0005-20
ASTM: B 783 - 93
DIN: SINT - C01
SAE: 853, class2
I - 40H Iron, Carbon


Heat Treat
Properties
Fe: 97.4 - 99.7
C: 0.3 - 0.6
Other: 2.0 max
38,000




70,000
28,000 1.5



<0.5
6.8 - 7.2




6.8 - 7.2
HRB 55




HRC 22
Used where moderate strength and hardness with extensive machining is required. Increased strength by hardening and tempering. MPIF: F - 0005-25
ASTM: B 783 - 93
DIN: SINT - D01
I - 50 Iron/Nickel Fe: 50
Ni: 50
38,000   12 6.8 - 7.2 HRB 20- 25 Best material for soft magnetic applications with very low coercive forces DIN: S Fe Ni 15
I - 65 45P Fe: 97.8 - 99.5
P: 0.45
Other: 1.0 max
45,000 30,000 7 6.8 - 7.2 HRB 35 Very good material for soft magnetic applications. MPIF: F - 0000 - 20 modified
ASTM: B 783 - 93
DIN: SINT - D 35
SAE: 853, class1
I - 75 Iron, Nickel,
Copper,
Carbon
Fe: 91.00-96.41
Ni: 1.60-2.00
Mo:.5-.6
C: 0.6-0.9
Other: 2.0 max
60,000 60,000 <1 6.4-6.8 HRC 20-30 High strength, high hardness, in a sintered condition.
Referred to as "sinter-hardened" material. Used for gears, sprockets and synchronizer hub.
MPIF: FLC - 4608-50HT
ASTM: B 783 - 93
DIN: SINT - D 39
I - 78 Iron, Copper,
Carbon
Fe: 91.1-95.4
Ni: 4.0-6.0
C: 0.6-0.9
Other: 2.0 max
68,000 60,000 1 6.4-6.8 HRB 70-80 Suitable for general structural parts and when increased strength, hardness, and wear resistance is required. MPIF: FLC - 0508-50HT
ASTM: B 783 - 93
I - 82 Iron, Nickel,
Carbon


Heat Treat
Properties
Fe: 91.9 - 98.7
Ni: 1 - 3
C: 0.3 - 0.6
Other: 2.0 max
50,000




120,000
30,000 2.5




<0.5
6.8 - 7.2



6.8 - 7.2
HRB 65




HRC 30
Used for moderate strength and wear resistance, good toughness. Suitable for high strength structural parts by hardening and tempering. MPIF: FN - 0205 - 25
ASTM: B 783 - 93
DIN: SINT - D 39
I-83

Iron,
Copper,
Carbon

Fe: 94.35
Ni: 4.0
C: .6-.9
45,000 40,000 1 6.4-6.8 HRB 70-85 High tensile strength and Toughness in a sintered condition. Good for high strength structural perts where wear resistance, increased impact properties are achieved by hardening and tempering. MPIF: 0408-35
ASTM: B 783-93
I - 84 Iron, Nickel,
Carbon

Heat Treat
Properties
Fe: 89.9 - 96.7
Ni: 3.0 - 5.5
C: 0.3 - 0.6
Other: 2.0 max
60,000




130,000
40,000 3




<0.5
6.8 - 7.2




6.8 - 7.2
HRB 70



HRC 30
High tensile strength and toughness in a sintered condition. Good for high strength structural parts by hardening & tempering MPIF: FN - 0405 - 35
ASTM: B 783 - 93
I - 85

Iron, Carbon

Heat Treat
Properties

Fe: 97.1-99.4
C:0.6-0.9
Other:2.0 max

57,000

 

85,000

40,000

1

 

<0.5

6.8-7.2

 

6.8-7.2

HRB 70

 

HRC 30

Suitable for general structural parts when loading is moderate. Non-machinable grade. Increased strength by hardening and tempering MPIF: F-0008-35
ASTM B 783-93
SAE: 853, CLASS 3
I - 86 Low Alloy
Steel   
Fe: 94.5 - 97.5
C: 0.4 - 0.7
Ni: 1.7 - 2.0
MO: 0.4 - 0.8
Other: 2.0 max
110,000

110,000

 

<0.5 6.8 - 7.2 HRC 30 This material is typically used when high performance materials capable of being heat-
treated are required. Provides high strength and wear resistance after hardening and tempering.
MPIF: FL -4605 - 100HT
ASTM: B 783 - 93
I - 91 Low Alloy
Steel
Fe: 95.9 - 98.7
C: 0.4 - 0.7
Ni: 0.35 - 0.55
MO: 0.5 - 0.85
Other: 2.0 max
110,000 110,000 <0.5 6.8 - 7.2 HRC 35 This material is typically used when high performance materials capable of being heat-
treated are required. Provides high strength and wear resistance after hardening and tempering.
MPIF: FL -4205 - 100HT
ASTM: B 783 - 93
I - 92 Iron, Copper,
Carbon


Heat Treat
Properties
Fe: 93.5-98.2
Cu: 1.5-3.9
C: 0.3-0.6
Other: 2.0 max
50,000





80,000
45,000 1





<0.5
6.4 - 6.8





6.4 - 6.8
HRB 60





HRC 30
Suitable for general structural parts when secondary machining is required. MPIF: FC -0205 - 40
ASTM: B 783 - 93
I - 94 Iron, Nickel,
Copper, Moly,
Carbon

Fe: Balance
Ni: 4.0
Cu: 1.5
MO: 0.50
C: 0.6 - 0.9
71,000





57,000 <1 6.4 - 6.8




HRB 80- 90





Diffusion alloyed steels typically used in medium to high strength structural products. Used in high density applications require toughness than conventional P/M materials. MPIF: FD - 0408 - 50
ASTM: B 783 - 93
DIN: SINT - D39
I-95 Iron, Nickel,
Copper, Moly,
Carbon

Fe: Balance
Ni: 1.75
Cu: 1.5
MO: 0.53
C: 0.4
68,000 52,000 1 6.4-6.8 HRB 70-80 Diffusion alloyed steels typically used in medium to high strength structural products. Used for high density applications require good as sintered Properties MPIF: Fd-0205-60
ASTM: B 783 - 93
DIN: SINT - D39
I - 96 Iron, Nickel, Copper, Moly, Carbon


Fe: Balance
Ni: 1.80
Cu: 1.60
MO: 0.55
C: 0.6 - 0.9
75,000 50,000 2.5
6.8 - 7.2

HRB 75






Diffusion alloyed steels typically used in medium to high strength structural products. These materials may be Heat treated to increase strength and wear resistance. MPIF: FN - 0208 - 35modified
ASTM: B 783 - 93
DIN: SINT - D39
I 98 Iron, Copper,
Carbon


Heat Treat
Properties
Fe: 93.2 - 97.9
Cu: 1.5 - 3.9
C: 0.6 - 0.9
Other: 2.0 max
75,000




105,000
65,000 <1.0




<0.5
6.8 - 7.2




6.8 - 7.2
HRB 80




HRC 40
Material used for higher strength structural parts.
Good abrasion resistance. Increased strength by hardening and tempering.
MPIF: FC - 0208 - 60
ASTM: B 783 - 93
DIN: SINT - D11
SAE: 864, grade1, class3
I - 99 Iron, Nickel,Carbon


Heat Treat
Properties
Fe: 91.6 - 98.4
Cu: 1.0 - 3.0
C: 0.6 - 0.9
Other: 2.0 max
55,000




120,000
40,000 1.5




<0.5
6.8 - 7.2




6.8 - 7.2
HRB 70




HRC 30
Suitable for high strength structural parts by hardening and tempering and retaining toughness. MPIF: FN - 0208 - 35
ASTM: B 783 - 93
I-112 85-HP Fe: 98.30
Cu: .25
MO: .86
C: .6-.9
52,000 42,000 1 6.4-6.8 HBR 55-66 For high performance P/M applications. Enhanced properties of Material allows higher densities than conventional P/M. MPIF: FL -4405-35
ASTM: B 783-93
Din: SINT -D39
I-125 SC 100 SC100 7 Iron Powder for Electromagnetic Application. These Materials are press ready, preinsulated iron powders engineered to be used in the as compacted condition. Application of these magnetic materials include High-efficiency electric motors, high frequency transformers and uniquely shaped electrical components. SC - 100
NOTE: Yield and Ultimate Tensile Strength are approximately the same for heat treated material.