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C68100 Brass vs. S31727 Stainless Steel

C68100 brass belongs to the copper alloys classification, while S31727 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C68100 brass and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 29
40
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 380
630
Tensile Strength: Yield (Proof), MPa 140
270

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Maximum Temperature: Mechanical, °C 120
1010
Melting Completion (Liquidus), °C 890
1440
Melting Onset (Solidus), °C 870
1390
Specific Heat Capacity, J/kg-K 390
470
Thermal Expansion, µm/m-K 21
16

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
4.7
Embodied Energy, MJ/kg 47
64
Embodied Water, L/kg 330
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
200
Resilience: Unit (Modulus of Resilience), kJ/m3 94
190
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 13
22
Strength to Weight: Bending, points 15
20
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 19
Copper (Cu), % 56 to 60
2.8 to 4.0
Iron (Fe), % 0.25 to 1.3
53.7 to 61.3
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.010 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.040 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0.75 to 1.1
0
Zinc (Zn), % 36.4 to 43
0
Residuals, % 0 to 0.5
0