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C85500 Brass vs. S21904 Stainless Steel

C85500 brass belongs to the copper alloys classification, while S21904 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C85500 brass and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
210 to 300
Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 40
17 to 51
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 410
700 to 1000
Tensile Strength: Yield (Proof), MPa 160
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 170
290
Maximum Temperature: Mechanical, °C 120
980
Melting Completion (Liquidus), °C 900
1400
Melting Onset (Solidus), °C 890
1350
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 120
14
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 29
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
15
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 320
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 120
380 to 2070
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 14
25 to 36
Strength to Weight: Bending, points 15
23 to 29
Thermal Diffusivity, mm2/s 38
3.8
Thermal Shock Resistance, points 14
15 to 21

Alloy Composition

Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 59 to 63
0
Iron (Fe), % 0 to 0.2
59.5 to 67.4
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 0 to 0.2
8.0 to 10
Nickel (Ni), % 0 to 0.2
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 35.1 to 41
0
Residuals, % 0 to 0.9
0