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C66700 Brass vs. SAE-AISI M3 Class 2 Steel

C66700 brass belongs to the copper alloys classification, while SAE-AISI M3 class 2 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C66700 brass and the bottom bar is SAE-AISI M3 class 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 340 to 690
770 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 180
260
Melting Completion (Liquidus), °C 1090
1620
Melting Onset (Solidus), °C 1050
1570
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 97
26
Thermal Expansion, µm/m-K 20
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
25
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 2.7
12
Embodied Energy, MJ/kg 45
180
Embodied Water, L/kg 320
110

Common Calculations

Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 11 to 23
26 to 74
Strength to Weight: Bending, points 13 to 21
22 to 45
Thermal Diffusivity, mm2/s 30
7.2
Thermal Shock Resistance, points 11 to 23
24 to 69

Alloy Composition

Carbon (C), % 0
1.2 to 1.3
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 68.5 to 71.5
0 to 0.25
Iron (Fe), % 0 to 0.1
75.8 to 82.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0.8 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 6.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.8 to 3.8
Zinc (Zn), % 26.3 to 30.7
0
Residuals, % 0 to 0.5
0