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SAE-AISI M3 Class 2 Steel vs. C43400 Brass

SAE-AISI M3 class 2 steel belongs to the iron alloys classification, while C43400 brass belongs to the copper 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 SAE-AISI M3 class 2 steel and the bottom bar is C43400 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 77
42
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
310 to 690

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Melting Completion (Liquidus), °C 1620
1020
Melting Onset (Solidus), °C 1570
990
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 26
140
Thermal Expansion, µm/m-K 12
19

Otherwise Unclassified Properties

Base Metal Price, % relative 25
28
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 12
2.7
Embodied Energy, MJ/kg 180
44
Embodied Water, L/kg 110
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 26 to 74
10 to 22
Strength to Weight: Bending, points 22 to 45
12 to 20
Thermal Diffusivity, mm2/s 7.2
41
Thermal Shock Resistance, points 24 to 69
11 to 24

Alloy Composition

Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
84 to 87
Iron (Fe), % 75.8 to 82.3
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.4 to 1.0
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0
Zinc (Zn), % 0
11.4 to 15.6
Residuals, % 0
0 to 0.5