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SAE-AISI A2 Steel vs. Grade M30C Nickel

SAE-AISI A2 steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A2 steel and the bottom bar is grade M30C nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
61
Tensile Strength: Ultimate (UTS), MPa 710 to 2040
510

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1450
1290
Melting Onset (Solidus), °C 1410
1240
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 38
22
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.7
9.5
Embodied Energy, MJ/kg 38
140
Embodied Water, L/kg 73
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 25 to 73
16
Strength to Weight: Bending, points 23 to 46
16
Thermal Diffusivity, mm2/s 10
5.7
Thermal Shock Resistance, points 25 to 71
18

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.3
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
26 to 33
Iron (Fe), % 89.4 to 93.3
0 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.15 to 0.5
0