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Nickel 684 vs. AWS E209

Nickel 684 belongs to the nickel alloys classification, while AWS E209 belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 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 nickel 684 and the bottom bar is AWS E209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
17
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 1190
770

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1370
1420
Melting Onset (Solidus), °C 1320
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 75
21
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
4.4
Embodied Energy, MJ/kg 140
63
Embodied Water, L/kg 360
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
28
Strength to Weight: Bending, points 30
24
Thermal Shock Resistance, points 34
19

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
0 to 0.060
Chromium (Cr), % 15 to 20
20.5 to 24
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0 to 0.75
Iron (Fe), % 0 to 4.0
51.5 to 64.3
Manganese (Mn), % 0 to 0.75
4.0 to 7.0
Molybdenum (Mo), % 3.0 to 5.0
1.5 to 3.0
Nickel (Ni), % 42.7 to 64
9.5 to 12
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.5 to 3.3
0
Vanadium (V), % 0
0.1 to 0.3