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S31727 Stainless Steel vs. C99750 Brass

S31727 stainless steel belongs to the iron alloys classification, while C99750 brass belongs to the copper alloys. There are 26 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 S31727 stainless steel and the bottom bar is C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
130
Elongation at Break, % 40
20 to 30
Poisson's Ratio 0.28
0.32
Rockwell B Hardness 83
77 to 82
Shear Modulus, GPa 78
48
Tensile Strength: Ultimate (UTS), MPa 630
450 to 520
Tensile Strength: Yield (Proof), MPa 270
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 290
200
Maximum Temperature: Mechanical, °C 1010
160
Melting Completion (Liquidus), °C 1440
840
Melting Onset (Solidus), °C 1390
820
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 16
20

Otherwise Unclassified Properties

Base Metal Price, % relative 24
23
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 4.7
3.1
Embodied Energy, MJ/kg 64
51
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
190 to 300
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 22
15 to 18
Strength to Weight: Bending, points 20
16 to 18
Thermal Shock Resistance, points 14
13 to 15

Alloy Composition

Aluminum (Al), % 0
0.25 to 3.0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
55 to 61
Iron (Fe), % 53.7 to 61.3
0 to 1.0
Lead (Pb), % 0
0.5 to 2.5
Manganese (Mn), % 0 to 1.0
17 to 23
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0 to 5.0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
17 to 23
Residuals, % 0
0 to 0.3