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C95800 Bronze vs. SAE-AISI 4340M Steel

C95800 bronze belongs to the copper alloys classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C95800 bronze and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 22
6.0
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
72
Tensile Strength: Ultimate (UTS), MPa 660
2340
Tensile Strength: Yield (Proof), MPa 270
1240

Thermal Properties

Latent Heat of Fusion, J/g 230
280
Maximum Temperature: Mechanical, °C 230
430
Melting Completion (Liquidus), °C 1060
1440
Melting Onset (Solidus), °C 1040
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 36
38
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 7.6
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 29
3.9
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.9
Embodied Energy, MJ/kg 55
26
Embodied Water, L/kg 370
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 310
4120
Stiffness to Weight: Axial, points 7.9
13
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 22
84
Strength to Weight: Bending, points 20
51
Thermal Diffusivity, mm2/s 9.9
10
Thermal Shock Resistance, points 23
70

Alloy Composition

Aluminum (Al), % 8.5 to 9.5
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 1.0
Copper (Cu), % 79 to 83.2
0
Iron (Fe), % 3.5 to 4.5
93.3 to 94.8
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.8 to 1.5
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 4.0 to 5.0
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.012
Silicon (Si), % 0 to 0.1
1.5 to 1.8
Sulfur (S), % 0
0 to 0.012
Vanadium (V), % 0
0.050 to 0.1
Residuals, % 0 to 0.5
0