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EN 1.4439 Stainless Steel vs. Grade CX2M Nickel

EN 1.4439 stainless steel belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4439 stainless steel and the bottom bar is grade CX2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 40
45
Fatigue Strength, MPa 270
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
84
Tensile Strength: Ultimate (UTS), MPa 680
550
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 980
990
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 14
10
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 22
65
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 4.5
12
Embodied Energy, MJ/kg 61
160
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
210
Resilience: Unit (Modulus of Resilience), kJ/m3 240
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 3.8
2.7
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 16.5 to 18.5
22 to 24
Iron (Fe), % 58.7 to 66.9
0 to 1.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
15 to 16.5
Nickel (Ni), % 12.5 to 14.5
56.4 to 63
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.020