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EN 1.4971 Stainless Steel vs. Grade CY40 Nickel

EN 1.4971 stainless steel belongs to the iron alloys classification, while grade CY40 nickel belongs to the nickel alloys. They have 42% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is grade CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
34
Fatigue Strength, MPa 270
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
74
Tensile Strength: Ultimate (UTS), MPa 800
540
Tensile Strength: Yield (Proof), MPa 340
220

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1410
1300
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
55
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 7.6
9.1
Embodied Energy, MJ/kg 110
130
Embodied Water, L/kg 300
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
150
Resilience: Unit (Modulus of Resilience), kJ/m3 280
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 3.4
3.7
Thermal Shock Resistance, points 19
16

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.4
Chromium (Cr), % 20 to 22.5
14 to 17
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
0 to 11
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
67 to 86
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 3.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0