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S31730 Stainless Steel vs. C84100 Brass

S31730 stainless steel belongs to the iron alloys classification, while C84100 brass belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is C84100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
65
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
13
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
39
Tensile Strength: Ultimate (UTS), MPa 540
230
Tensile Strength: Yield (Proof), MPa 200
81

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 990
160
Melting Completion (Liquidus), °C 1430
1000
Melting Onset (Solidus), °C 1390
810
Specific Heat Capacity, J/kg-K 470
380
Thermal Expansion, µm/m-K 16
19

Otherwise Unclassified Properties

Base Metal Price, % relative 24
29
Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 4.6
2.9
Embodied Energy, MJ/kg 63
48
Embodied Water, L/kg 180
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
24
Resilience: Unit (Modulus of Resilience), kJ/m3 99
30
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19
7.4
Strength to Weight: Bending, points 18
9.7
Thermal Shock Resistance, points 12
7.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.050
Bismuth (Bi), % 0
0 to 0.090
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 4.0 to 5.0
78 to 85
Iron (Fe), % 52.4 to 61
0 to 0.3
Lead (Pb), % 0
0.050 to 0.25
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 15 to 16.5
0 to 0.5
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 0.010
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
1.5 to 4.5
Zinc (Zn), % 0
12 to 20
Residuals, % 0
0 to 0.5