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C69400 Brass vs. S21800 Stainless Steel

C69400 brass belongs to the copper alloys classification, while S21800 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C69400 brass and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 17
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
75
Shear Strength, MPa 350
510
Tensile Strength: Ultimate (UTS), MPa 570
740
Tensile Strength: Yield (Proof), MPa 270
390

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Maximum Temperature: Mechanical, °C 170
900
Melting Completion (Liquidus), °C 920
1360
Melting Onset (Solidus), °C 820
1310
Specific Heat Capacity, J/kg-K 410
500
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 27
15
Density, g/cm3 8.3
7.5
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 44
45
Embodied Water, L/kg 300
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
250
Resilience: Unit (Modulus of Resilience), kJ/m3 340
390
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
26
Strength to Weight: Axial, points 19
27
Strength to Weight: Bending, points 18
24
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 80 to 83
0
Iron (Fe), % 0 to 0.2
59.1 to 65.4
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
7.0 to 9.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 3.5 to 4.5
3.5 to 4.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0 to 0.5
0