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C72700 Copper-nickel vs. AISI 334 Stainless Steel

C72700 copper-nickel belongs to the copper alloys classification, while AISI 334 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 4.0 to 36
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
77
Shear Strength, MPa 310 to 620
360
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
540
Tensile Strength: Yield (Proof), MPa 580 to 1060
190

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
1000
Melting Completion (Liquidus), °C 1100
1410
Melting Onset (Solidus), °C 930
1370
Specific Heat Capacity, J/kg-K 380
480
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
22
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 4.0
4.1
Embodied Energy, MJ/kg 62
59
Embodied Water, L/kg 350
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
96
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14 to 34
19
Strength to Weight: Bending, points 15 to 26
19
Thermal Shock Resistance, points 16 to 38
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
55.7 to 62.7
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0 to 1.0
Nickel (Ni), % 8.5 to 9.5
19 to 21
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 5.5 to 6.5
0
Titanium (Ti), % 0
0.15 to 0.6
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0