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AISI 431 Stainless Steel vs. C87200 Bronze

AISI 431 stainless steel belongs to the iron alloys classification, while C87200 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is C87200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
85
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 15 to 17
30
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
380
Tensile Strength: Yield (Proof), MPa 710 to 1040
170

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 850
200
Melting Completion (Liquidus), °C 1510
970
Melting Onset (Solidus), °C 1450
860
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 26
28
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
29
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.2
2.7
Embodied Energy, MJ/kg 31
44
Embodied Water, L/kg 120
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
93
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
130
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 32 to 50
12
Strength to Weight: Bending, points 27 to 36
14
Thermal Diffusivity, mm2/s 7.0
8.0
Thermal Shock Resistance, points 28 to 43
14

Alloy Composition

Aluminum (Al), % 0
0 to 1.5
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
89 to 99
Iron (Fe), % 78.2 to 83.8
0 to 2.5
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 1.3 to 2.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.5
Silicon (Si), % 0 to 1.0
1.0 to 5.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
0 to 5.0