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EN 1.4655 Stainless Steel vs. Nickel 22

EN 1.4655 stainless steel belongs to the iron alloys classification, while nickel 22 belongs to the nickel alloys. They have a modest 30% 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4655 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, % 23 to 25
49
Fatigue Strength, MPa 320
330
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
84
Shear Strength, MPa 460
560
Tensile Strength: Ultimate (UTS), MPa 720 to 730
790
Tensile Strength: Yield (Proof), MPa 450 to 480
360

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 1050
990
Melting Completion (Liquidus), °C 1420
1390
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 15
10
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
70
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.9
12
Embodied Energy, MJ/kg 41
170
Embodied Water, L/kg 160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
320
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 580
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 4.0
2.7
Thermal Shock Resistance, points 20
24

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.015
Chromium (Cr), % 22 to 24
20 to 22.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 1.0 to 3.0
0
Iron (Fe), % 63.6 to 73.4
2.0 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 0.015
Molybdenum (Mo), % 0.1 to 0.6
12.5 to 14.5
Nickel (Ni), % 3.5 to 5.5
50.8 to 63
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.035
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