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C68700 Brass vs. S30452 Stainless Steel

C68700 brass belongs to the copper alloys classification, while S30452 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is S30452 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 390
660
Tensile Strength: Yield (Proof), MPa 140
310

Thermal Properties

Latent Heat of Fusion, J/g 190
290
Maximum Temperature: Mechanical, °C 160
960
Melting Completion (Liquidus), °C 970
1420
Melting Onset (Solidus), °C 930
1380
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 100
16
Thermal Expansion, µm/m-K 19
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 25
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 26
15
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 340
150

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
250
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13
23
Strength to Weight: Bending, points 14
22
Thermal Diffusivity, mm2/s 30
4.2
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0
Arsenic (As), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 76 to 79
0
Iron (Fe), % 0 to 0.060
66.3 to 73.8
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0.16 to 0.3
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 17.8 to 22.2
0
Residuals, % 0 to 0.5
0