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Grade M30C Nickel vs. SAE-AISI A7 Steel

Grade M30C nickel belongs to the nickel alloys classification, while SAE-AISI A7 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade M30C nickel and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
72
Tensile Strength: Ultimate (UTS), MPa 510
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1290
1470
Melting Onset (Solidus), °C 1240
1430
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 22
37
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 60
10
Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 9.5
13
Embodied Energy, MJ/kg 140
200
Embodied Water, L/kg 250
100

Common Calculations

Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 16
29 to 77
Strength to Weight: Bending, points 16
25 to 48
Thermal Diffusivity, mm2/s 5.7
10
Thermal Shock Resistance, points 18
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.3
2.0 to 2.9
Chromium (Cr), % 0
5.0 to 5.8
Copper (Cu), % 26 to 33
0 to 0.25
Iron (Fe), % 0 to 3.5
81.4 to 87.7
Manganese (Mn), % 0 to 1.5
0 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 56.6 to 72
0 to 0.3
Niobium (Nb), % 1.0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2