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S31266 Stainless Steel vs. C69430 Brass

S31266 stainless steel belongs to the iron alloys classification, while C69430 brass belongs to the copper 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 S31266 stainless steel and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 40
17
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
42
Shear Strength, MPa 590
350
Tensile Strength: Ultimate (UTS), MPa 860
570
Tensile Strength: Yield (Proof), MPa 470
280

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 1.0 to 2.5
80 to 83
Iron (Fe), % 34.1 to 46
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 2.0 to 4.0
0
Molybdenum (Mo), % 5.2 to 6.2
0
Nickel (Ni), % 21 to 24
0
Nitrogen (N), % 0.35 to 0.6
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 1.5 to 2.5
0
Zinc (Zn), % 0
11.4 to 16.5
Residuals, % 0
0 to 0.5