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S21900 Stainless Steel vs. CC764S Brass

S21900 stainless steel belongs to the iron alloys classification, while CC764S brass belongs to the copper 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 S21900 stainless steel and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
160
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 50
15
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 710
680
Tensile Strength: Yield (Proof), MPa 390
290

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Maximum Temperature: Mechanical, °C 980
130
Melting Completion (Liquidus), °C 1400
850
Melting Onset (Solidus), °C 1350
810
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 14
94
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
36

Otherwise Unclassified Properties

Base Metal Price, % relative 15
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.9
Embodied Energy, MJ/kg 43
49
Embodied Water, L/kg 160
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
80
Resilience: Unit (Modulus of Resilience), kJ/m3 380
390
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.8
30
Thermal Shock Resistance, points 15
22

Alloy Composition

Aluminum (Al), % 0
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
52 to 66
Iron (Fe), % 59.4 to 67.4
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 8.0 to 10
0.3 to 4.0
Nickel (Ni), % 5.5 to 7.5
0 to 3.0
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
20.7 to 50.2