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C68100 Brass vs. S32950 Stainless Steel

C68100 brass belongs to the copper alloys classification, while S32950 stainless steel belongs to the iron alloys. There are 28 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 C68100 brass and the bottom bar is S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 29
17
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 380
780
Tensile Strength: Yield (Proof), MPa 140
550

Thermal Properties

Latent Heat of Fusion, J/g 170
300
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 890
1430
Melting Onset (Solidus), °C 870
1390
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 98
16
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 27
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.4
Embodied Energy, MJ/kg 47
47
Embodied Water, L/kg 330
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
120
Resilience: Unit (Modulus of Resilience), kJ/m3 94
730
Stiffness to Weight: Axial, points 7.3
15
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 13
28
Strength to Weight: Bending, points 15
24
Thermal Diffusivity, mm2/s 32
4.3
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
26 to 29
Copper (Cu), % 56 to 60
0
Iron (Fe), % 0.25 to 1.3
60.3 to 69.4
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.010 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 2.5
Nickel (Ni), % 0
3.5 to 5.2
Nitrogen (N), % 0
0.15 to 0.35
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.040 to 0.15
0 to 0.6
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0.75 to 1.1
0
Zinc (Zn), % 36.4 to 43
0
Residuals, % 0 to 0.5
0