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C21000 Brass vs. S30415 Stainless Steel

C21000 brass belongs to the copper alloys classification, while S30415 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C21000 brass and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 2.9 to 50
45
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 36 to 73
84
Shear Modulus, GPa 43
77
Shear Strength, MPa 180 to 280
470
Tensile Strength: Ultimate (UTS), MPa 240 to 450
670
Tensile Strength: Yield (Proof), MPa 69 to 440
330

Thermal Properties

Latent Heat of Fusion, J/g 200
300
Maximum Temperature: Mechanical, °C 190
940
Melting Completion (Liquidus), °C 1070
1410
Melting Onset (Solidus), °C 1050
1370
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 230
21
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 57
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
3.1
Embodied Energy, MJ/kg 42
43
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
250
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
280
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 7.4 to 14
24
Strength to Weight: Bending, points 9.6 to 15
22
Thermal Diffusivity, mm2/s 69
5.6
Thermal Shock Resistance, points 8.1 to 15
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), % 94 to 96
0
Iron (Fe), % 0 to 0.050
67.8 to 71.8
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
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
Zinc (Zn), % 3.7 to 6.0
0
Residuals, % 0 to 0.2
0