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SAE-AISI M3 Class 2 Steel vs. C94700 Bronze

SAE-AISI M3 class 2 steel belongs to the iron alloys classification, while C94700 bronze belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 2 steel and the bottom bar is C94700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
350 to 590

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Melting Completion (Liquidus), °C 1620
1030
Melting Onset (Solidus), °C 1570
900
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 26
54
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
34
Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 12
3.5
Embodied Energy, MJ/kg 180
56
Embodied Water, L/kg 110
350

Common Calculations

Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 26 to 74
11 to 19
Strength to Weight: Bending, points 22 to 45
13 to 18
Thermal Diffusivity, mm2/s 7.2
16
Thermal Shock Resistance, points 24 to 69
12 to 21

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.15
Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
85 to 90
Iron (Fe), % 75.8 to 82.3
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0.15 to 0.4
0 to 0.2
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
4.5 to 6.0
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0.2 to 0.45
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.050
Tin (Sn), % 0
4.5 to 6.0
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0
Zinc (Zn), % 0
1.0 to 2.5
Residuals, % 0
0 to 1.3