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SAE-AISI M10 Steel vs. SAE-AISI M3 Class 2 Steel

Both SAE-AISI M10 steel and SAE-AISI M3 class 2 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI M10 steel and the bottom bar is SAE-AISI M3 class 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 740 to 2170
770 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1520
1620
Melting Onset (Solidus), °C 1470
1570
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 31
26
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
25
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 8.3
12
Embodied Energy, MJ/kg 120
180
Embodied Water, L/kg 100
110

Common Calculations

PREN (Pitting Resistance) 31
33
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26 to 76
26 to 74
Strength to Weight: Bending, points 23 to 47
22 to 45
Thermal Diffusivity, mm2/s 8.5
7.2
Thermal Shock Resistance, points 23 to 68
24 to 69

Alloy Composition

Carbon (C), % 0.84 to 1.1
1.2 to 1.3
Chromium (Cr), % 3.8 to 4.5
3.8 to 4.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 82.3 to 85.6
75.8 to 82.3
Manganese (Mn), % 0.1 to 0.4
0.15 to 0.4
Molybdenum (Mo), % 7.8 to 8.5
4.8 to 6.5
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 1.8 to 2.2
2.8 to 3.8

Comparable Variants