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SAE-AISI 81B45 Steel vs. C60800 Bronze

SAE-AISI 81B45 steel belongs to the iron alloys classification, while C60800 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 81B45 steel and the bottom bar is C60800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12 to 24
55
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
46
Shear Strength, MPa 340 to 400
290
Tensile Strength: Ultimate (UTS), MPa 540 to 670
390
Tensile Strength: Yield (Proof), MPa 350 to 560
150

Thermal Properties

Latent Heat of Fusion, J/g 250
220
Maximum Temperature: Mechanical, °C 410
210
Melting Completion (Liquidus), °C 1460
1060
Melting Onset (Solidus), °C 1420
1050
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 40
80
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
17
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
29
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 1.5
2.9
Embodied Energy, MJ/kg 20
48
Embodied Water, L/kg 49
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 840
94
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19 to 24
13
Strength to Weight: Bending, points 19 to 22
14
Thermal Diffusivity, mm2/s 11
23
Thermal Shock Resistance, points 17 to 21
14

Alloy Composition

Aluminum (Al), % 0
5.0 to 6.5
Arsenic (As), % 0
0.020 to 0.35
Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.43 to 0.48
0
Chromium (Cr), % 0.35 to 0.55
0
Copper (Cu), % 0
92.5 to 95
Iron (Fe), % 97 to 98
0 to 0.1
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.080 to 0.15
0
Nickel (Ni), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.5