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C68400 Brass vs. S42030 Stainless Steel

C68400 brass belongs to the copper alloys classification, while S42030 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is S42030 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 18
16
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 41
76
Shear Strength, MPa 330
410
Tensile Strength: Ultimate (UTS), MPa 540
670
Tensile Strength: Yield (Proof), MPa 310
410

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 130
780
Melting Completion (Liquidus), °C 840
1450
Melting Onset (Solidus), °C 820
1410
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 66
28
Thermal Expansion, µm/m-K 20
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 99
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.5
Embodied Energy, MJ/kg 47
34
Embodied Water, L/kg 320
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
92
Resilience: Unit (Modulus of Resilience), kJ/m3 460
440
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 21
7.7
Thermal Shock Resistance, points 18
24

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 59 to 64
2.0 to 3.0
Iron (Fe), % 0 to 1.0
77.6 to 85
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0.2 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
1.0 to 3.0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0.030 to 0.3
0 to 0.040
Silicon (Si), % 1.5 to 2.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0
Residuals, % 0 to 0.5
0