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Nickel 690 vs. SAE-AISI M6 Steel

Nickel 690 belongs to the nickel alloys classification, while SAE-AISI M6 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is nickel 690 and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 640 to 990
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1380
1560
Melting Onset (Solidus), °C 1340
1510
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 14
17
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 50
39
Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 8.2
8.0
Embodied Energy, MJ/kg 120
120
Embodied Water, L/kg 290
160

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21 to 33
28 to 73
Strength to Weight: Bending, points 20 to 27
24 to 45
Thermal Diffusivity, mm2/s 3.5
4.7
Thermal Shock Resistance, points 16 to 25
26 to 68

Alloy Composition

Carbon (C), % 0 to 0.050
0.75 to 0.85
Chromium (Cr), % 27 to 31
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
68.8 to 74.6
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 58 to 66
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0.2 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7

Comparable Variants