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EN 1.4825 Stainless Steel vs. Grade CY40 Nickel

EN 1.4825 stainless steel belongs to the iron alloys classification, while grade CY40 nickel belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4825 stainless steel and the bottom bar is grade CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
34
Fatigue Strength, MPa 160
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 510
540
Tensile Strength: Yield (Proof), MPa 260
220

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 900
960
Melting Completion (Liquidus), °C 1410
1350
Melting Onset (Solidus), °C 1370
1300
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 15
55
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 3.1
9.1
Embodied Energy, MJ/kg 43
130
Embodied Water, L/kg 140
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
150
Resilience: Unit (Modulus of Resilience), kJ/m3 170
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 4.0
3.7
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0.15 to 0.35
0 to 0.4
Chromium (Cr), % 17 to 19
14 to 17
Iron (Fe), % 65.6 to 74.4
0 to 11
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 10
67 to 86
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.5 to 2.5
0 to 3.0
Sulfur (S), % 0 to 0.030
0 to 0.030