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SAE-AISI A2 Steel vs. Nickel 690

SAE-AISI A2 steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. There are 23 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 A2 steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Tensile Strength: Ultimate (UTS), MPa 710 to 2040
640 to 990

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 38
14
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 2.7
8.2
Embodied Energy, MJ/kg 38
120
Embodied Water, L/kg 73
290

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 73
21 to 33
Strength to Weight: Bending, points 23 to 46
20 to 27
Thermal Diffusivity, mm2/s 10
3.5
Thermal Shock Resistance, points 25 to 71
16 to 25

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.050
Chromium (Cr), % 4.8 to 5.5
27 to 31
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 89.4 to 93.3
7.0 to 11
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
58 to 66
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0.15 to 0.5
0

Comparable Variants