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S31803 Stainless Steel vs. C85500 Brass

S31803 stainless steel belongs to the iron alloys classification, while C85500 brass belongs to the copper alloys. There are 29 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 S31803 stainless steel and the bottom bar is C85500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
85
Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 29
40
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 710
410
Tensile Strength: Yield (Proof), MPa 500
160

Thermal Properties

Latent Heat of Fusion, J/g 300
170
Maximum Temperature: Mechanical, °C 1060
120
Melting Completion (Liquidus), °C 1450
900
Melting Onset (Solidus), °C 1400
890
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
29

Otherwise Unclassified Properties

Base Metal Price, % relative 17
23
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 160
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
130
Resilience: Unit (Modulus of Resilience), kJ/m3 630
120
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 25
14
Strength to Weight: Bending, points 23
15
Thermal Diffusivity, mm2/s 4.3
38
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 21 to 23
0
Copper (Cu), % 0
59 to 63
Iron (Fe), % 63.7 to 71.9
0 to 0.2
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0 to 2.0
0 to 0.2
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 4.5 to 6.5
0 to 0.2
Nitrogen (N), % 0.080 to 0.2
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0
35.1 to 41
Residuals, % 0
0 to 0.9