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SAE-AISI M4 Steel vs. CC750S Brass

SAE-AISI M4 steel belongs to the iron alloys classification, while CC750S 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 CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 76
40
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
200

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Melting Completion (Liquidus), °C 1610
860
Melting Onset (Solidus), °C 1560
810
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 25
110
Thermal Expansion, µm/m-K 12
20

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 14
2.8
Embodied Energy, MJ/kg 210
46
Embodied Water, L/kg 110
330

Common Calculations

Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 26 to 72
6.8
Strength to Weight: Bending, points 23 to 45
9.3
Thermal Diffusivity, mm2/s 6.9
35
Thermal Shock Resistance, points 24 to 68
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 1.3 to 1.4
0
Chromium (Cr), % 3.8 to 4.8
0
Copper (Cu), % 0 to 0.25
62 to 67
Iron (Fe), % 75.9 to 81.4
0 to 0.8
Lead (Pb), % 0
1.0 to 3.0
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 0.050
Silicon (Si), % 0.2 to 0.45
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 1.5
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0
Zinc (Zn), % 0
26.3 to 36