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SAE-AISI M43 Steel vs. C68700 Brass

SAE-AISI M43 steel belongs to the iron alloys classification, while C68700 brass belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M43 steel and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
41
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
390

Thermal Properties

Latent Heat of Fusion, J/g 270
190
Melting Completion (Liquidus), °C 1550
970
Melting Onset (Solidus), °C 1500
930
Specific Heat Capacity, J/kg-K 450
400
Thermal Conductivity, W/m-K 19
100
Thermal Expansion, µm/m-K 12
19

Otherwise Unclassified Properties

Base Metal Price, % relative 33
26
Density, g/cm3 8.2
8.3
Embodied Carbon, kg CO2/kg material 8.5
2.8
Embodied Energy, MJ/kg 120
46
Embodied Water, L/kg 140
340

Common Calculations

Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 27 to 77
13
Strength to Weight: Bending, points 24 to 47
14
Thermal Diffusivity, mm2/s 5.3
30
Thermal Shock Resistance, points 25 to 71
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.5 to 4.3
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
76 to 79
Iron (Fe), % 70.8 to 76
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.2 to 0.4
0
Molybdenum (Mo), % 7.5 to 8.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.65
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.3 to 3.0
0
Vanadium (V), % 1.5 to 1.8
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5