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Nickel 690 vs. ASTM A182 Grade F6b

Nickel 690 belongs to the nickel alloys classification, while ASTM A182 grade F6b belongs to the iron alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 690 and the bottom bar is ASTM A182 grade F6b.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
260
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 3.4 to 34
18
Fatigue Strength, MPa 180 to 300
440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 420 to 570
530
Tensile Strength: Ultimate (UTS), MPa 640 to 990
850
Tensile Strength: Yield (Proof), MPa 250 to 760
710

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Mechanical, °C 1010
750
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
25
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 50
8.0
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
2.2
Embodied Energy, MJ/kg 120
30
Embodied Water, L/kg 290
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
140
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
1280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 33
30
Strength to Weight: Bending, points 20 to 27
26
Thermal Diffusivity, mm2/s 3.5
6.7
Thermal Shock Resistance, points 16 to 25
31

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.15
Chromium (Cr), % 27 to 31
11.5 to 13.5
Copper (Cu), % 0 to 0.5
0 to 0.5
Iron (Fe), % 7.0 to 11
81.2 to 87.1
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 58 to 66
1.0 to 2.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020