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SAE-AISI M3 Class 1 Steel vs. C31400 Bronze

SAE-AISI M3 class 1 steel belongs to the iron alloys classification, while C31400 bronze belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is C31400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 77
42
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Melting Completion (Liquidus), °C 1610
1040
Melting Onset (Solidus), °C 1570
1010
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 26
180
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 10
2.6
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 100
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 26 to 72
8.7 to 13
Strength to Weight: Bending, points 22 to 44
11 to 14
Thermal Diffusivity, mm2/s 7.2
54
Thermal Shock Resistance, points 24 to 67
9.6 to 15

Alloy Composition

Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
87.5 to 90.5
Iron (Fe), % 76.9 to 82.9
0 to 0.1
Lead (Pb), % 0
1.3 to 2.5
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.7
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0
Zinc (Zn), % 0
5.8 to 11.2
Residuals, % 0
0 to 0.4