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C69400 Brass vs. S31266 Stainless Steel

C69400 brass belongs to the copper alloys classification, while S31266 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C69400 brass and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 17
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
81
Shear Strength, MPa 350
590
Tensile Strength: Ultimate (UTS), MPa 570
860
Tensile Strength: Yield (Proof), MPa 270
470

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 920
1470
Melting Onset (Solidus), °C 820
1420
Specific Heat Capacity, J/kg-K 410
460
Thermal Conductivity, W/m-K 26
12
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 27
37
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 2.7
6.5
Embodied Energy, MJ/kg 44
89
Embodied Water, L/kg 300
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
290
Resilience: Unit (Modulus of Resilience), kJ/m3 340
540
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 19
29
Strength to Weight: Bending, points 18
24
Thermal Diffusivity, mm2/s 7.7
3.1
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 80 to 83
1.0 to 2.5
Iron (Fe), % 0 to 0.2
34.1 to 46
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 0
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 3.5 to 4.5
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0 to 0.5
0