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Nickel 30 vs. SAE-AISI A7 Steel

Nickel 30 belongs to the nickel alloys classification, while SAE-AISI A7 steel belongs to the iron alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is nickel 30 and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 82
72
Tensile Strength: Ultimate (UTS), MPa 660
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1480
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 10
37
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 60
10
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 9.4
13
Embodied Energy, MJ/kg 130
200
Embodied Water, L/kg 290
100

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
29 to 77
Strength to Weight: Bending, points 20
25 to 48
Thermal Diffusivity, mm2/s 2.7
10
Thermal Shock Resistance, points 18
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.030
2.0 to 2.9
Chromium (Cr), % 28 to 31.5
5.0 to 5.8
Cobalt (Co), % 0 to 5.0
0
Copper (Cu), % 1.0 to 2.4
0 to 0.25
Iron (Fe), % 13 to 17
81.4 to 87.7
Manganese (Mn), % 0 to 0.030
0 to 0.8
Molybdenum (Mo), % 4.0 to 6.0
0.9 to 1.4
Nickel (Ni), % 30.2 to 52.2
0 to 0.3
Niobium (Nb), % 0.3 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 4.0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2