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C68000 Brass vs. S31266 Stainless Steel

C68000 brass belongs to the copper alloys classification, while S31266 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C68000 brass and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 27
40
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 40
81
Tensile Strength: Ultimate (UTS), MPa 390
860
Tensile Strength: Yield (Proof), MPa 140
470

Thermal Properties

Latent Heat of Fusion, J/g 170
310
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 880
1470
Melting Onset (Solidus), °C 870
1420
Specific Heat Capacity, J/kg-K 390
460
Thermal Conductivity, W/m-K 96
12
Thermal Expansion, µm/m-K 21
16

Otherwise Unclassified Properties

Base Metal Price, % relative 23
37
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 2.8
6.5
Embodied Energy, MJ/kg 48
89
Embodied Water, L/kg 330
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
290
Resilience: Unit (Modulus of Resilience), kJ/m3 95
540
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 14
29
Strength to Weight: Bending, points 15
24
Thermal Diffusivity, mm2/s 31
3.1
Thermal Shock Resistance, points 13
18

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 56 to 60
1.0 to 2.5
Iron (Fe), % 0.25 to 1.3
34.1 to 46
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.010 to 0.5
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 0.2 to 0.8
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.040 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0.75 to 1.1
0
Tungsten (W), % 0
1.5 to 2.5
Zinc (Zn), % 35.6 to 42.8
0
Residuals, % 0 to 0.5
0