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EN 1.4981 Stainless Steel vs. C72200 Copper-nickel

EN 1.4981 stainless steel belongs to the iron alloys classification, while C72200 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4981 stainless steel and the bottom bar is C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
48
Tensile Strength: Ultimate (UTS), MPa 610
350 to 580

Thermal Properties

Latent Heat of Fusion, J/g 290
220
Maximum Temperature: Mechanical, °C 940
230
Melting Completion (Liquidus), °C 1440
1180
Melting Onset (Solidus), °C 1400
1120
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 16
34
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
36
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.8
3.9
Embodied Energy, MJ/kg 67
59
Embodied Water, L/kg 150
300

Common Calculations

Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21
11 to 18
Strength to Weight: Bending, points 20
12 to 17
Thermal Diffusivity, mm2/s 4.3
9.6
Thermal Shock Resistance, points 14
12 to 20

Alloy Composition

Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 15.5 to 17.5
0.3 to 0.7
Copper (Cu), % 0
78.1 to 84.2
Iron (Fe), % 59.6 to 66.7
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
15 to 18
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.3 to 0.6
0
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.2