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C17500 Copper vs. ASTM A227 Spring Steel

C17500 copper belongs to the copper alloys classification, while ASTM A227 spring steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C17500 copper and the bottom bar is ASTM A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 6.0 to 30
12
Fatigue Strength, MPa 170 to 310
900 to 1160
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 45
72
Shear Strength, MPa 200 to 520
1030 to 1330
Tensile Strength: Ultimate (UTS), MPa 310 to 860
1720 to 2220
Tensile Strength: Yield (Proof), MPa 170 to 760
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 220
400
Melting Completion (Liquidus), °C 1060
1450
Melting Onset (Solidus), °C 1020
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 200
52
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 53
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 24 to 54
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 60
1.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 4.7
1.4
Embodied Energy, MJ/kg 73
19
Embodied Water, L/kg 320
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
200 to 260
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.7 to 27
61 to 79
Strength to Weight: Bending, points 11 to 23
41 to 48
Thermal Diffusivity, mm2/s 59
14
Thermal Shock Resistance, points 11 to 29
55 to 71

Alloy Composition

Aluminum (Al), % 0 to 0.2
0
Beryllium (Be), % 0.4 to 0.7
0
Carbon (C), % 0
0.45 to 0.85
Cobalt (Co), % 2.4 to 2.7
0
Copper (Cu), % 95.6 to 97.2
0
Iron (Fe), % 0 to 0.1
97.4 to 99.1
Manganese (Mn), % 0
0.3 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0.15 to 0.35
Sulfur (S), % 0
0 to 0.050
Residuals, % 0 to 0.5
0

Comparable Variants