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S31655 Stainless Steel vs. C23400 Brass

S31655 stainless steel belongs to the iron alloys classification, while C23400 brass belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is S31655 stainless steel and the bottom bar is C23400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.32
Rockwell B Hardness 88
52 to 91
Shear Modulus, GPa 78
42
Tensile Strength: Ultimate (UTS), MPa 710
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 1010
160
Melting Completion (Liquidus), °C 1430
970
Melting Onset (Solidus), °C 1380
930
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 16
19

Otherwise Unclassified Properties

Base Metal Price, % relative 17
27
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 160
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25
12 to 21
Strength to Weight: Bending, points 23
13 to 19
Thermal Diffusivity, mm2/s 4.0
36
Thermal Shock Resistance, points 16
12 to 22

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 0 to 1.0
81 to 84
Iron (Fe), % 63.2 to 71.9
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0.5 to 1.5
0
Nickel (Ni), % 8.0 to 9.5
0
Nitrogen (N), % 0.14 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
15.7 to 19
Residuals, % 0
0 to 0.2