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C37100 Brass vs. S21800 Stainless Steel

C37100 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 (11, in this case) are not shown.

For each property being compared, the top bar is C37100 brass and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 8.0 to 40
40
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
75
Shear Strength, MPa 260 to 300
510
Tensile Strength: Ultimate (UTS), MPa 370 to 520
740
Tensile Strength: Yield (Proof), MPa 150 to 390
390

Thermal Properties

Latent Heat of Fusion, J/g 170
340
Maximum Temperature: Mechanical, °C 120
900
Melting Completion (Liquidus), °C 900
1360
Melting Onset (Solidus), °C 890
1310
Specific Heat Capacity, J/kg-K 380
500
Thermal Expansion, µm/m-K 21
16

Otherwise Unclassified Properties

Base Metal Price, % relative 23
15
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 45
45
Embodied Water, L/kg 320
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 120
250
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 750
390
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 20
26
Strength to Weight: Axial, points 13 to 18
27
Strength to Weight: Bending, points 14 to 18
24
Thermal Shock Resistance, points 12 to 17
17

Alloy Composition

Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 58 to 62
0
Iron (Fe), % 0 to 0.15
59.1 to 65.4
Lead (Pb), % 0.6 to 1.2
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), % 0
3.5 to 4.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 36.3 to 41.4
0
Residuals, % 0 to 0.4
0