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C36000 Brass vs. S21904 Stainless Steel

C36000 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 (4, in this case) are not shown.

For each property being compared, the top bar is C36000 brass and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 5.8 to 23
17 to 51
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 39
78
Shear Strength, MPa 210 to 310
510 to 620
Tensile Strength: Ultimate (UTS), MPa 330 to 530
700 to 1000
Tensile Strength: Yield (Proof), MPa 140 to 260
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 380
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 8.2
7.7
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 320
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 62
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 89 to 340
380 to 2070
Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 11 to 18
25 to 36
Strength to Weight: Bending, points 13 to 18
23 to 29
Thermal Diffusivity, mm2/s 37
3.8
Thermal Shock Resistance, points 11 to 18
15 to 21

Alloy Composition

Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 60 to 63
0
Iron (Fe), % 0 to 0.35
59.5 to 67.4
Lead (Pb), % 2.5 to 3.7
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
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 32.5 to 37.5
0
Residuals, % 0 to 0.5
0