MakeItFrom.com
Menu (ESC)

C70700 Copper-nickel vs. ASTM A227 Spring Steel

C70700 copper-nickel 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 (2, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is ASTM A227 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
500 to 640
Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 39
12
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
72
Shear Strength, MPa 220
1030 to 1330
Tensile Strength: Ultimate (UTS), MPa 320
1720 to 2220
Tensile Strength: Yield (Proof), MPa 110
1430 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 220
400
Melting Completion (Liquidus), °C 1120
1450
Melting Onset (Solidus), °C 1060
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 59
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 34
1.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.4
Embodied Energy, MJ/kg 52
19
Embodied Water, L/kg 300
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
200 to 260
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
61 to 79
Strength to Weight: Bending, points 12
41 to 48
Thermal Diffusivity, mm2/s 17
14
Thermal Shock Resistance, points 12
55 to 71

Alloy Composition

Carbon (C), % 0
0.45 to 0.85
Copper (Cu), % 88.5 to 90.5
0
Iron (Fe), % 0 to 0.050
97.4 to 99.1
Manganese (Mn), % 0 to 0.5
0.3 to 1.3
Nickel (Ni), % 9.5 to 10.5
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.050
Residuals, % 0 to 0.5
0