MakeItFrom.com
Menu (ESC)

Nickel 684 vs. SAE-AISI A2 Steel

Nickel 684 belongs to the nickel alloys classification, while SAE-AISI A2 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 684 and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 1190
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1370
1450
Melting Onset (Solidus), °C 1320
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 75
5.5
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
2.7
Embodied Energy, MJ/kg 140
38
Embodied Water, L/kg 360
73

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
25 to 73
Strength to Weight: Bending, points 30
23 to 46
Thermal Shock Resistance, points 34
25 to 71

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
1.0 to 1.1
Chromium (Cr), % 15 to 20
4.8 to 5.5
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0 to 0.25
Iron (Fe), % 0 to 4.0
89.4 to 93.3
Manganese (Mn), % 0 to 0.75
0 to 1.0
Molybdenum (Mo), % 3.0 to 5.0
0.9 to 1.4
Nickel (Ni), % 42.7 to 64
0 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.5 to 3.3
0
Vanadium (V), % 0
0.15 to 0.5