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EN 1.4439 Stainless Steel vs. Nickel 22

EN 1.4439 stainless steel belongs to the iron alloys classification, while nickel 22 belongs to the nickel alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 nickel 22.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 40
49
Fatigue Strength, MPa 270
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
84
Shear Strength, MPa 470
560
Tensile Strength: Ultimate (UTS), MPa 680
790
Tensile Strength: Yield (Proof), MPa 310
360

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 980
990
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 14
10
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 22
70
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.5
12
Embodied Energy, MJ/kg 61
170
Embodied Water, L/kg 160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
320
Resilience: Unit (Modulus of Resilience), kJ/m3 240
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 3.8
2.7
Thermal Shock Resistance, points 15
24

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 16.5 to 18.5
20 to 22.5
Cobalt (Co), % 0
0 to 2.5
Iron (Fe), % 58.7 to 66.9
2.0 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 0.015
Molybdenum (Mo), % 4.0 to 5.0
12.5 to 14.5
Nickel (Ni), % 12.5 to 14.5
50.8 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 0.080
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35