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S31655 Stainless Steel vs. C68300 Brass

S31655 stainless steel belongs to the iron alloys classification, while C68300 brass belongs to the copper alloys. There are 28 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 S31655 stainless steel and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 39
15
Poisson's Ratio 0.28
0.31
Rockwell B Hardness 88
60
Shear Modulus, GPa 78
40
Shear Strength, MPa 490
260
Tensile Strength: Ultimate (UTS), MPa 710
430
Tensile Strength: Yield (Proof), MPa 350
260

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Maximum Temperature: Mechanical, °C 1010
120
Melting Completion (Liquidus), °C 1430
900
Melting Onset (Solidus), °C 1380
890
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 16
20

Otherwise Unclassified Properties

Base Metal Price, % relative 17
23
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 160
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
56
Resilience: Unit (Modulus of Resilience), kJ/m3 310
330
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 25
15
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 4.0
38
Thermal Shock Resistance, points 16
14

Alloy Composition

Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 0 to 1.0
59 to 63
Iron (Fe), % 63.2 to 71.9
0
Lead (Pb), % 0
0 to 0.090
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
0.3 to 1.0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0.050 to 0.2
Zinc (Zn), % 0
34.2 to 40.4
Residuals, % 0
0 to 0.5