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CC767S Brass vs. S82121 Stainless Steel

CC767S brass belongs to the copper alloys classification, while S82121 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 CC767S brass and the bottom bar is S82121 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
250
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 34
28
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 430
730
Tensile Strength: Yield (Proof), MPa 150
510

Thermal Properties

Latent Heat of Fusion, J/g 180
290
Maximum Temperature: Mechanical, °C 120
1020
Melting Completion (Liquidus), °C 840
1430
Melting Onset (Solidus), °C 790
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 36
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
14
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 47
40
Embodied Water, L/kg 330
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 100
660
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 15
26
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 34
4.0
Thermal Shock Resistance, points 14
20

Alloy Composition

Aluminum (Al), % 0.1 to 0.8
0
Carbon (C), % 0
0 to 0.035
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 58 to 64
0.2 to 1.2
Iron (Fe), % 0 to 0.5
66.7 to 75.4
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
1.0 to 2.5
Molybdenum (Mo), % 0
0.3 to 1.3
Nickel (Ni), % 0 to 1.0
2.0 to 4.0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 32.8 to 41.9
0