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C64800 Bronze vs. ASTM A231 Spring Steel

C64800 bronze belongs to the copper alloys classification, while ASTM A231 spring steel belongs to the iron 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 C64800 bronze and the bottom bar is ASTM A231 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 8.0
14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Shear Strength, MPa 380
1080
Tensile Strength: Ultimate (UTS), MPa 640
1790
Tensile Strength: Yield (Proof), MPa 630
1570

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 200
420
Melting Completion (Liquidus), °C 1090
1460
Melting Onset (Solidus), °C 1030
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
52
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 65
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 66
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 33
2.3
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 43
28
Embodied Water, L/kg 310
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
230
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 20
64
Strength to Weight: Bending, points 19
42
Thermal Diffusivity, mm2/s 75
14
Thermal Shock Resistance, points 23
53

Alloy Composition

Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0 to 0.090
0.8 to 1.1
Cobalt (Co), % 1.0 to 3.0
0
Copper (Cu), % 92.4 to 98.8
0
Iron (Fe), % 0 to 1.0
96.7 to 97.7
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.7 to 0.9
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.5
0 to 0.040
Silicon (Si), % 0.2 to 1.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.5
0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0