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C69400 Brass vs. S31730 Stainless Steel

C69400 brass belongs to the copper alloys classification, while S31730 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C69400 brass and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
77
Shear Strength, MPa 350
370
Tensile Strength: Ultimate (UTS), MPa 570
540
Tensile Strength: Yield (Proof), MPa 270
200

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 920
1430
Melting Onset (Solidus), °C 820
1390
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 27
24
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 2.7
4.6
Embodied Energy, MJ/kg 44
63
Embodied Water, L/kg 300
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
170
Resilience: Unit (Modulus of Resilience), kJ/m3 340
99
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 18
18
Thermal Shock Resistance, points 20
12

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 80 to 83
4.0 to 5.0
Iron (Fe), % 0 to 0.2
52.4 to 61
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0 to 0.5
0