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AISI 431 Stainless Steel vs. C93700 Bronze

AISI 431 stainless steel belongs to the iron alloys classification, while C93700 bronze belongs to the copper alloys. There are 29 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 AISI 431 stainless steel and the bottom bar is C93700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
99
Elongation at Break, % 15 to 17
20
Fatigue Strength, MPa 430 to 610
90
Poisson's Ratio 0.28
0.35
Shear Modulus, GPa 77
37
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
240
Tensile Strength: Yield (Proof), MPa 710 to 1040
130

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Maximum Temperature: Mechanical, °C 850
140
Melting Completion (Liquidus), °C 1510
930
Melting Onset (Solidus), °C 1450
760
Specific Heat Capacity, J/kg-K 480
350
Thermal Conductivity, W/m-K 26
47
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
33
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.2
3.5
Embodied Energy, MJ/kg 31
57
Embodied Water, L/kg 120
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
40
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
79
Stiffness to Weight: Axial, points 14
6.2
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 32 to 50
7.5
Strength to Weight: Bending, points 27 to 36
9.6
Thermal Diffusivity, mm2/s 7.0
15
Thermal Shock Resistance, points 28 to 43
9.4

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.5
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
78 to 82
Iron (Fe), % 78.2 to 83.8
0 to 0.15
Lead (Pb), % 0
8.0 to 11
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
9.0 to 11
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 1.0