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SAE-AISI M4 Steel vs. C90800 Bronze

SAE-AISI M4 steel belongs to the iron alloys classification, while C90800 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 M4 steel and the bottom bar is C90800 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 76
40
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
330

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Melting Completion (Liquidus), °C 1610
990
Melting Onset (Solidus), °C 1560
870
Specific Heat Capacity, J/kg-K 440
370
Thermal Conductivity, W/m-K 25
68
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 25
36
Density, g/cm3 8.3
8.7
Embodied Carbon, kg CO2/kg material 14
3.8
Embodied Energy, MJ/kg 210
62
Embodied Water, L/kg 110
410

Common Calculations

Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 26 to 72
11
Strength to Weight: Bending, points 23 to 45
12
Thermal Diffusivity, mm2/s 6.9
21
Thermal Shock Resistance, points 24 to 68
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 1.3 to 1.4
0
Chromium (Cr), % 3.8 to 4.8
0
Copper (Cu), % 0 to 0.25
85.3 to 89
Iron (Fe), % 75.9 to 81.4
0 to 0.15
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.3
Silicon (Si), % 0.2 to 0.45
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.050
Tin (Sn), % 0
11 to 13
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0
Zinc (Zn), % 0
0 to 0.25