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EN 1.4021 Stainless Steel vs. Grade CX2MW Nickel

EN 1.4021 stainless steel belongs to the iron alloys classification, while grade CX2MW nickel belongs to the nickel alloys. 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 1.4021 stainless steel and the bottom bar is grade CX2MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 240 to 380
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
84
Tensile Strength: Ultimate (UTS), MPa 630 to 880
620
Tensile Strength: Yield (Proof), MPa 390 to 670
350

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 760
980
Melting Completion (Liquidus), °C 1440
1550
Melting Onset (Solidus), °C 1400
1490
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 30
10
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
65
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 1.9
12
Embodied Energy, MJ/kg 27
170
Embodied Water, L/kg 100
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1160
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 23 to 31
19
Strength to Weight: Bending, points 21 to 26
18
Thermal Diffusivity, mm2/s 8.1
2.7
Thermal Shock Resistance, points 22 to 31
17

Alloy Composition

Carbon (C), % 0.16 to 0.25
0 to 0.020
Chromium (Cr), % 12 to 14
20 to 22.5
Iron (Fe), % 83.2 to 87.8
2.0 to 6.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 0
51.3 to 63
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.025
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35