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C71500 Copper-nickel vs. ASTM Grade HN Steel

C71500 copper-nickel belongs to the copper alloys classification, while ASTM grade HN steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
77
Tensile Strength: Ultimate (UTS), MPa 380 to 620
500

Thermal Properties

Latent Heat of Fusion, J/g 230
310
Maximum Temperature: Mechanical, °C 260
1080
Melting Completion (Liquidus), °C 1240
1400
Melting Onset (Solidus), °C 1170
1350
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 28
13
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 41
26
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 5.1
4.6
Embodied Energy, MJ/kg 74
66
Embodied Water, L/kg 280
180

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 19
17
Strength to Weight: Bending, points 13 to 18
18
Thermal Diffusivity, mm2/s 7.7
3.5
Thermal Shock Resistance, points 12 to 20
11

Alloy Composition

Carbon (C), % 0
0.2 to 0.5
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 63.5 to 70.6
0
Iron (Fe), % 0.4 to 1.0
44.9 to 57.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 29 to 33
23 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0