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SAE-AISI 8645 Steel vs. C92700 Bronze

SAE-AISI 8645 steel belongs to the iron alloys classification, while C92700 bronze belongs to the copper alloys. There are 28 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 SAE-AISI 8645 steel and the bottom bar is C92700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12 to 23
9.1
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 600 to 670
290
Tensile Strength: Yield (Proof), MPa 390 to 560
150

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
980
Melting Onset (Solidus), °C 1420
840
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 39
47
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
35
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 1.5
3.6
Embodied Energy, MJ/kg 20
58
Embodied Water, L/kg 50
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 120
22
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 840
110
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 21 to 24
9.1
Strength to Weight: Bending, points 20 to 22
11
Thermal Diffusivity, mm2/s 10
15
Thermal Shock Resistance, points 18 to 20
11

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.43 to 0.48
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
86 to 89
Iron (Fe), % 96.5 to 97.7
0 to 0.2
Lead (Pb), % 0
1.0 to 2.5
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 1.5
Silicon (Si), % 0.15 to 0.35
0 to 0.0050
Sulfur (S), % 0 to 0.040
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Zinc (Zn), % 0
0 to 0.7
Residuals, % 0
0 to 0.7