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Nickel 689 vs. SAE-AISI A6 Steel

Nickel 689 belongs to the nickel alloys classification, while SAE-AISI A6 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is nickel 689 and the bottom bar is SAE-AISI A6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 1250
750 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
3.7
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 11
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 330
57

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 41
27 to 71
Strength to Weight: Bending, points 30
23 to 45
Thermal Shock Resistance, points 35
25 to 65

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.1 to 0.2
0.65 to 0.75
Chromium (Cr), % 18 to 20
0.9 to 1.2
Cobalt (Co), % 9.0 to 11
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 5.0
93 to 95.8
Manganese (Mn), % 0 to 0.5
1.8 to 2.5
Molybdenum (Mo), % 9.0 to 10.5
0.9 to 1.4
Nickel (Ni), % 48.3 to 60.9
0 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.3 to 2.8
0