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AISI 321H Stainless Steel vs. EN 2.4669 Nickel

AISI 321H stainless steel belongs to the iron alloys classification, while EN 2.4669 nickel belongs to the nickel alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 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 AISI 321H stainless steel and the bottom bar is EN 2.4669 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
16
Fatigue Strength, MPa 200
390
Poisson's Ratio 0.28
0.29
Reduction in Area, % 51
31
Shear Modulus, GPa 77
73
Shear Strength, MPa 400
680
Tensile Strength: Ultimate (UTS), MPa 580
1110
Tensile Strength: Yield (Proof), MPa 230
720

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 940
960
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
60
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.2
10
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 140
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
160
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
37
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 4.0
3.1
Thermal Shock Resistance, points 12
33

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0.040 to 0.1
0 to 0.080
Chromium (Cr), % 17 to 19
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 65.4 to 74
5.0 to 9.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 9.0 to 12
65.9 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0 to 0.7
2.3 to 2.8