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C47940 Brass vs. S20432 Stainless Steel

C47940 brass belongs to the copper alloys classification, while S20432 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C47940 brass and the bottom bar is S20432 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 14 to 34
45
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
76
Shear Strength, MPa 250 to 310
400
Tensile Strength: Ultimate (UTS), MPa 380 to 520
580
Tensile Strength: Yield (Proof), MPa 160 to 390
230

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 130
900
Melting Completion (Liquidus), °C 850
1410
Melting Onset (Solidus), °C 800
1370
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
13
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 47
38
Embodied Water, L/kg 330
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 100
210
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 740
140
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13 to 17
21
Strength to Weight: Bending, points 14 to 17
20
Thermal Diffusivity, mm2/s 36
4.0
Thermal Shock Resistance, points 13 to 17
13

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 63 to 66
2.0 to 3.0
Iron (Fe), % 0.1 to 1.0
66.7 to 74
Lead (Pb), % 1.0 to 2.0
0
Manganese (Mn), % 0
3.0 to 5.0
Nickel (Ni), % 0.1 to 0.5
4.0 to 6.0
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.2 to 2.0
0
Zinc (Zn), % 28.1 to 34.6
0
Residuals, % 0 to 0.4
0