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Nickel 22 vs. ASTM A387 Grade 12 Steel

Nickel 22 belongs to the nickel alloys classification, while ASTM A387 grade 12 steel belongs to the iron alloys. 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 nickel 22 and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 49
25
Fatigue Strength, MPa 330
190 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 84
73
Shear Strength, MPa 560
300 to 330
Tensile Strength: Ultimate (UTS), MPa 790
470 to 520
Tensile Strength: Yield (Proof), MPa 360
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 990
430
Melting Completion (Liquidus), °C 1390
1470
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 10
44
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 12
1.6
Embodied Energy, MJ/kg 170
21
Embodied Water, L/kg 300
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 300
180 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 25
16 to 18
Strength to Weight: Bending, points 21
17 to 18
Thermal Diffusivity, mm2/s 2.7
12
Thermal Shock Resistance, points 24
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.015
0.050 to 0.17
Chromium (Cr), % 20 to 22.5
0.8 to 1.2
Cobalt (Co), % 0 to 2.5
0
Iron (Fe), % 2.0 to 6.0
97 to 98.2
Manganese (Mn), % 0 to 0.015
0.4 to 0.65
Molybdenum (Mo), % 12.5 to 14.5
0.45 to 0.6
Nickel (Ni), % 50.8 to 63
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.080
0.15 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.025
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0