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AISI 431 Stainless Steel vs. C94300 Bronze

AISI 431 stainless steel belongs to the iron alloys classification, while C94300 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is C94300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 15 to 17
9.7
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 77
32
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
180
Tensile Strength: Yield (Proof), MPa 710 to 1040
120

Thermal Properties

Latent Heat of Fusion, J/g 280
150
Maximum Temperature: Mechanical, °C 850
110
Melting Completion (Liquidus), °C 1510
820
Melting Onset (Solidus), °C 1450
760
Specific Heat Capacity, J/kg-K 480
320
Thermal Conductivity, W/m-K 26
63
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
28
Density, g/cm3 7.7
9.3
Embodied Carbon, kg CO2/kg material 2.2
2.9
Embodied Energy, MJ/kg 31
47
Embodied Water, L/kg 120
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
15
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
77
Stiffness to Weight: Axial, points 14
5.2
Stiffness to Weight: Bending, points 25
16
Strength to Weight: Axial, points 32 to 50
5.2
Strength to Weight: Bending, points 27 to 36
7.4
Thermal Diffusivity, mm2/s 7.0
21
Thermal Shock Resistance, points 28 to 43
7.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
67 to 72
Iron (Fe), % 78.2 to 83.8
0 to 0.15
Lead (Pb), % 0
23 to 27
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 1.3 to 2.5
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 1.5
Silicon (Si), % 0 to 1.0
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0
4.5 to 6.0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 1.0