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C83400 Brass vs. S21904 Stainless Steel

C83400 brass belongs to the copper alloys classification, while S21904 stainless steel belongs to the iron alloys. There are 28 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 C83400 brass and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 30
17 to 51
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
78
Tensile Strength: Ultimate (UTS), MPa 240
700 to 1000
Tensile Strength: Yield (Proof), MPa 69
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 200
290
Maximum Temperature: Mechanical, °C 180
980
Melting Completion (Liquidus), °C 1040
1400
Melting Onset (Solidus), °C 1020
1350
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 190
14
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 46
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 29
15
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 43
43
Embodied Water, L/kg 320
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 21
380 to 2070
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 7.7
25 to 36
Strength to Weight: Bending, points 9.9
23 to 29
Thermal Diffusivity, mm2/s 57
3.8
Thermal Shock Resistance, points 8.4
15 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 88 to 92
0
Iron (Fe), % 0 to 0.25
59.5 to 67.4
Lead (Pb), % 0 to 0.5
0
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0 to 1.0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0 to 0.080
0 to 0.030
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 8.0 to 12
0
Residuals, % 0 to 0.7
0