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AISI 431 Stainless Steel vs. C89320 Bronze

AISI 431 stainless steel belongs to the iron alloys classification, while C89320 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 C89320 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 15 to 17
17
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
270
Tensile Strength: Yield (Proof), MPa 710 to 1040
140

Thermal Properties

Latent Heat of Fusion, J/g 280
190
Maximum Temperature: Mechanical, °C 850
180
Melting Completion (Liquidus), °C 1510
1050
Melting Onset (Solidus), °C 1450
930
Specific Heat Capacity, J/kg-K 480
360
Thermal Conductivity, W/m-K 26
56
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
15
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
37
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.2
3.5
Embodied Energy, MJ/kg 31
56
Embodied Water, L/kg 120
490

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
38
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
93
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 32 to 50
8.5
Strength to Weight: Bending, points 27 to 36
10
Thermal Diffusivity, mm2/s 7.0
17
Thermal Shock Resistance, points 28 to 43
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.35
Bismuth (Bi), % 0
4.0 to 6.0
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
87 to 91
Iron (Fe), % 78.2 to 83.8
0 to 0.2
Lead (Pb), % 0
0 to 0.090
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 0.3
Silicon (Si), % 0 to 1.0
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0
5.0 to 7.0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5