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C35300 Brass vs. S31730 Stainless Steel

C35300 brass belongs to the copper alloys classification, while S31730 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is C35300 brass and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Poisson's Ratio 0.31
0.28
Rockwell B Hardness 53 to 91
78
Shear Modulus, GPa 39
77
Tensile Strength: Ultimate (UTS), MPa 340 to 650
540

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Maximum Temperature: Mechanical, °C 120
990
Melting Completion (Liquidus), °C 910
1430
Melting Onset (Solidus), °C 890
1390
Specific Heat Capacity, J/kg-K 380
470
Thermal Expansion, µm/m-K 21
16

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 2.6
4.6
Embodied Energy, MJ/kg 45
63
Embodied Water, L/kg 320
180

Common Calculations

Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 22
19
Strength to Weight: Bending, points 13 to 21
18
Thermal Shock Resistance, points 11 to 22
12

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 60 to 63
4.0 to 5.0
Iron (Fe), % 0 to 0.1
52.4 to 61
Lead (Pb), % 1.5 to 2.5
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 33.9 to 38.5
0
Residuals, % 0 to 0.5
0