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C38000 Brass vs. S31266 Stainless Steel

C38000 brass belongs to the copper alloys classification, while S31266 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C38000 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, % 17
40
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 39
81
Shear Strength, MPa 230
590
Tensile Strength: Ultimate (UTS), MPa 380
860
Tensile Strength: Yield (Proof), MPa 120
470

Thermal Properties

Latent Heat of Fusion, J/g 170
310
Maximum Temperature: Mechanical, °C 110
1100
Melting Completion (Liquidus), °C 800
1470
Melting Onset (Solidus), °C 760
1420
Specific Heat Capacity, J/kg-K 380
460
Thermal Conductivity, W/m-K 110
12
Thermal Expansion, µm/m-K 21
16

Otherwise Unclassified Properties

Base Metal Price, % relative 22
37
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 2.7
6.5
Embodied Energy, MJ/kg 46
89
Embodied Water, L/kg 330
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
290
Resilience: Unit (Modulus of Resilience), kJ/m3 74
540
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 13
29
Strength to Weight: Bending, points 14
24
Thermal Diffusivity, mm2/s 37
3.1
Thermal Shock Resistance, points 13
18

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 55 to 60
1.0 to 2.5
Iron (Fe), % 0 to 0.35
34.1 to 46
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 0
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.3
0
Tungsten (W), % 0
1.5 to 2.5
Zinc (Zn), % 35.9 to 43.5
0
Residuals, % 0 to 0.5
0