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C44500 Brass vs. S21904 Stainless Steel

C44500 brass belongs to the copper alloys classification, while S21904 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C44500 brass and the bottom bar is S21904 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
78
Tensile Strength: Ultimate (UTS), MPa 350
700 to 1000
Tensile Strength: Yield (Proof), MPa 120
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 180
290
Maximum Temperature: Mechanical, °C 140
980
Melting Completion (Liquidus), °C 940
1400
Melting Onset (Solidus), °C 900
1350
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 110
14
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 27
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 26
15
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 330
160

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 65
380 to 2070
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12
25 to 36
Strength to Weight: Bending, points 13
23 to 29
Thermal Diffusivity, mm2/s 35
3.8
Thermal Shock Resistance, points 12
15 to 21

Alloy Composition

Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 70 to 73
0
Iron (Fe), % 0 to 0.060
59.5 to 67.4
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0.020 to 0.1
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0.9 to 1.2
0
Zinc (Zn), % 25.2 to 29.1
0
Residuals, % 0 to 0.4
0