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C47940 Brass vs. S30415 Stainless Steel

C47940 brass belongs to the copper alloys classification, while S30415 stainless steel belongs to the iron alloys. There are 27 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 C47940 brass and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 14 to 34
45
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
77
Shear Strength, MPa 250 to 310
470
Tensile Strength: Ultimate (UTS), MPa 380 to 520
670
Tensile Strength: Yield (Proof), MPa 160 to 390
330

Thermal Properties

Latent Heat of Fusion, J/g 170
300
Maximum Temperature: Mechanical, °C 130
940
Melting Completion (Liquidus), °C 850
1410
Melting Onset (Solidus), °C 800
1370
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 110
21
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.1
Embodied Energy, MJ/kg 47
43
Embodied Water, L/kg 330
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 100
250
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 740
280
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13 to 17
24
Strength to Weight: Bending, points 14 to 17
22
Thermal Diffusivity, mm2/s 36
5.6
Thermal Shock Resistance, points 13 to 17
15

Alloy Composition

Carbon (C), % 0
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Copper (Cu), % 63 to 66
0
Iron (Fe), % 0.1 to 1.0
67.8 to 71.8
Lead (Pb), % 1.0 to 2.0
0
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0.1 to 0.5
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.2 to 2.0
0
Zinc (Zn), % 28.1 to 34.6
0
Residuals, % 0 to 0.4
0