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SAE-AISI M7 Steel vs. C85700 Brass

SAE-AISI M7 steel belongs to the iron alloys classification, while C85700 brass 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 M7 steel and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 760 to 2210
310

Thermal Properties

Latent Heat of Fusion, J/g 270
170
Melting Completion (Liquidus), °C 1560
940
Melting Onset (Solidus), °C 1510
910
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 28
84
Thermal Expansion, µm/m-K 12
21

Otherwise Unclassified Properties

Base Metal Price, % relative 18
24
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 8.9
2.8
Embodied Energy, MJ/kg 130
47
Embodied Water, L/kg 100
330

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 26 to 76
11
Strength to Weight: Bending, points 23 to 47
13
Thermal Diffusivity, mm2/s 7.8
27
Thermal Shock Resistance, points 24 to 69
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Carbon (C), % 1.0 to 1.1
0
Chromium (Cr), % 3.5 to 4.0
0
Copper (Cu), % 0 to 0.25
58 to 64
Iron (Fe), % 79.8 to 83.8
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 8.2 to 9.2
0
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.55
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.5 to 1.5
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.8 to 2.3
0
Zinc (Zn), % 0
32 to 40
Residuals, % 0
0 to 1.3