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SAE-AISI A7 Steel vs. Grade M35-2 Nickel

SAE-AISI A7 steel belongs to the iron alloys classification, while grade M35-2 nickel belongs to the nickel 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 SAE-AISI A7 steel and the bottom bar is grade M35-2 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 72
62
Tensile Strength: Ultimate (UTS), MPa 800 to 2150
500

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1470
1280
Melting Onset (Solidus), °C 1430
1230
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 37
22
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
55
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 13
8.1
Embodied Energy, MJ/kg 200
110
Embodied Water, L/kg 100
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 29 to 77
16
Strength to Weight: Bending, points 25 to 48
16
Thermal Diffusivity, mm2/s 10
5.7
Thermal Shock Resistance, points 27 to 72
17

Alloy Composition

Carbon (C), % 2.0 to 2.9
0 to 0.35
Chromium (Cr), % 5.0 to 5.8
0
Copper (Cu), % 0 to 0.25
26 to 33
Iron (Fe), % 81.4 to 87.7
0 to 3.5
Manganese (Mn), % 0 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
59.1 to 74
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.5 to 1.5
0
Vanadium (V), % 3.9 to 5.2
0