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SAE-AISI M43 Steel vs. C69300 Brass

SAE-AISI M43 steel belongs to the iron alloys classification, while C69300 brass belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M43 steel and the bottom bar is C69300 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
550 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
240
Melting Completion (Liquidus), °C 1550
880
Melting Onset (Solidus), °C 1500
860
Specific Heat Capacity, J/kg-K 450
400
Thermal Conductivity, W/m-K 19
38
Thermal Expansion, µm/m-K 12
19

Otherwise Unclassified Properties

Base Metal Price, % relative 33
26
Density, g/cm3 8.2
8.2
Embodied Carbon, kg CO2/kg material 8.5
2.7
Embodied Energy, MJ/kg 120
45
Embodied Water, L/kg 140
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 27 to 77
19 to 21
Strength to Weight: Bending, points 24 to 47
18 to 20
Thermal Diffusivity, mm2/s 5.3
12
Thermal Shock Resistance, points 25 to 71
19 to 22

Alloy Composition

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
73 to 77
Iron (Fe), % 70.8 to 76
0 to 0.1
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 0.2 to 0.4
0 to 0.1
Molybdenum (Mo), % 7.5 to 8.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.1
Phosphorus (P), % 0 to 0.030
0.040 to 0.15
Silicon (Si), % 0.15 to 0.65
2.7 to 3.4
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.2
Tungsten (W), % 2.3 to 3.0
0
Vanadium (V), % 1.5 to 1.8
0
Zinc (Zn), % 0
18.4 to 24.3
Residuals, % 0
0 to 0.5