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EN 1.4421 Stainless Steel vs. Grade CX2M Nickel

EN 1.4421 stainless steel belongs to the iron alloys classification, while grade CX2M nickel belongs to the nickel alloys. They have a modest 23% 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 (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4421 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, % 11 to 17
45
Fatigue Strength, MPa 380 to 520
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
550
Tensile Strength: Yield (Proof), MPa 620 to 950
310

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 870
990
Melting Completion (Liquidus), °C 1440
1500
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 16
10
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
65
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 2.6
12
Embodied Energy, MJ/kg 36
160
Embodied Water, L/kg 130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
210
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 31 to 39
18
Strength to Weight: Bending, points 26 to 30
17
Thermal Diffusivity, mm2/s 4.4
2.7
Thermal Shock Resistance, points 31 to 39
15

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.020
Chromium (Cr), % 15.5 to 17.5
22 to 24
Iron (Fe), % 74.4 to 80.5
0 to 1.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.7
15 to 16.5
Nickel (Ni), % 4.0 to 5.5
56.4 to 63
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.020