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SAE-AISI M4 Steel vs. CC761S Brass

SAE-AISI M4 steel belongs to the iron alloys classification, while CC761S brass 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 CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 76
42
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
540

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1610
960
Melting Onset (Solidus), °C 1560
910
Specific Heat Capacity, J/kg-K 440
410
Thermal Conductivity, W/m-K 25
27
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 25
27
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 14
2.7
Embodied Energy, MJ/kg 210
45
Embodied Water, L/kg 110
300

Common Calculations

Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 26 to 72
18
Strength to Weight: Bending, points 23 to 45
18
Thermal Diffusivity, mm2/s 6.9
8.0
Thermal Shock Resistance, points 24 to 68
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 1.3 to 1.4
0
Chromium (Cr), % 3.8 to 4.8
0
Copper (Cu), % 0 to 0.25
78 to 83
Iron (Fe), % 75.9 to 81.4
0 to 0.6
Lead (Pb), % 0
0 to 0.8
Manganese (Mn), % 0.15 to 0.4
0 to 0.2
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
3.0 to 5.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.3
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0
Zinc (Zn), % 0
8.9 to 19