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EN 1.4325 Stainless Steel vs. C72700 Copper-nickel

EN 1.4325 stainless steel belongs to the iron alloys classification, while C72700 copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4325 stainless steel and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 45
4.0 to 36
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
44
Shear Strength, MPa 450
310 to 620
Tensile Strength: Ultimate (UTS), MPa 650
460 to 1070
Tensile Strength: Yield (Proof), MPa 210
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 930
200
Melting Completion (Liquidus), °C 1430
1100
Melting Onset (Solidus), °C 1380
930
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
54
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
11

Otherwise Unclassified Properties

Base Metal Price, % relative 15
36
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 3.0
4.0
Embodied Energy, MJ/kg 42
62
Embodied Water, L/kg 140
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1420 to 4770
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 23
14 to 34
Strength to Weight: Bending, points 21
15 to 26
Thermal Diffusivity, mm2/s 4.3
16
Thermal Shock Resistance, points 15
16 to 38

Alloy Composition

Carbon (C), % 0.030 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
82.1 to 86
Iron (Fe), % 67.8 to 75
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 2.0
0.050 to 0.3
Nickel (Ni), % 8.0 to 10
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3