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C69430 Brass vs. S30815 Stainless Steel

C69430 brass belongs to the copper alloys classification, while S30815 stainless steel belongs to the iron alloys. There are 29 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 C69430 brass and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
45
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
77
Shear Strength, MPa 350
480
Tensile Strength: Ultimate (UTS), MPa 570
680
Tensile Strength: Yield (Proof), MPa 280
350

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 170
1020
Melting Completion (Liquidus), °C 920
1400
Melting Onset (Solidus), °C 820
1360
Specific Heat Capacity, J/kg-K 410
490
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 27
17
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 44
47
Embodied Water, L/kg 300
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
260
Resilience: Unit (Modulus of Resilience), kJ/m3 340
310
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 7.7
4.0
Thermal Shock Resistance, points 20
15

Alloy Composition

Arsenic (As), % 0.030 to 0.060
0
Carbon (C), % 0
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
20 to 22
Copper (Cu), % 80 to 83
0
Iron (Fe), % 0 to 0.2
62.8 to 68.4
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 3.5 to 4.5
1.4 to 2.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 11.4 to 16.5
0
Residuals, % 0 to 0.5
0