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ASTM A232 Spring Steel vs. C66100 Bronze

ASTM A232 spring steel belongs to the iron alloys classification, while C66100 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A232 spring steel and the bottom bar is C66100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 14
8.0 to 40
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
43
Shear Strength, MPa 1090
280 to 460
Tensile Strength: Ultimate (UTS), MPa 1790
410 to 790
Tensile Strength: Yield (Proof), MPa 1610
120 to 430

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
200
Melting Completion (Liquidus), °C 1460
1050
Melting Onset (Solidus), °C 1410
1000
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 52
34
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
29
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 2.0
2.6
Embodied Energy, MJ/kg 28
42
Embodied Water, L/kg 51
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
53 to 120
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 64
13 to 25
Strength to Weight: Bending, points 42
14 to 22
Thermal Diffusivity, mm2/s 14
9.7
Thermal Shock Resistance, points 53
15 to 29

Alloy Composition

Carbon (C), % 0.48 to 0.53
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
92 to 97
Iron (Fe), % 96.8 to 97.7
0 to 0.25
Lead (Pb), % 0
0.2 to 0.8
Manganese (Mn), % 0.7 to 0.9
0 to 1.5
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.15 to 0.35
2.8 to 3.5
Sulfur (S), % 0 to 0.035
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.5