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C68700 Brass vs. S21603 Stainless Steel

C68700 brass belongs to the copper alloys classification, while S21603 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is S21603 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
79
Tensile Strength: Ultimate (UTS), MPa 390
690
Tensile Strength: Yield (Proof), MPa 140
390

Thermal Properties

Latent Heat of Fusion, J/g 190
290
Maximum Temperature: Mechanical, °C 160
990
Melting Completion (Liquidus), °C 970
1420
Melting Onset (Solidus), °C 930
1380
Specific Heat Capacity, J/kg-K 400
480
Thermal Expansion, µm/m-K 19
17

Otherwise Unclassified Properties

Base Metal Price, % relative 26
17
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 46
50
Embodied Water, L/kg 340
160

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 90
380
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13
25
Strength to Weight: Bending, points 14
22
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0
Arsenic (As), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 76 to 79
0
Iron (Fe), % 0 to 0.060
57.6 to 67.8
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 17.8 to 22.2
0
Residuals, % 0 to 0.5
0