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AISI 309H Stainless Steel vs. Nickel 242

AISI 309H stainless steel belongs to the iron alloys classification, while nickel 242 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 30 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 309H stainless steel and the bottom bar is nickel 242.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 40
45
Fatigue Strength, MPa 200
300
Poisson's Ratio 0.27
0.3
Shear Modulus, GPa 78
84
Shear Strength, MPa 400
570
Tensile Strength: Ultimate (UTS), MPa 580
820
Tensile Strength: Yield (Proof), MPa 230
350

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 1080
930
Melting Completion (Liquidus), °C 1420
1380
Melting Onset (Solidus), °C 1370
1290
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
75
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.6
14
Embodied Energy, MJ/kg 51
180
Embodied Water, L/kg 170
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
300
Resilience: Unit (Modulus of Resilience), kJ/m3 130
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.0
3.1
Thermal Shock Resistance, points 13
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 22 to 24
7.0 to 9.0
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 58.1 to 66
0 to 2.0
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 0
24 to 26
Nickel (Ni), % 12 to 15
59.3 to 69
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015