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Nickel 684 vs. EN 1.7338 Steel

Nickel 684 belongs to the nickel alloys classification, while EN 1.7338 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is EN 1.7338 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 390
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 710
310
Tensile Strength: Ultimate (UTS), MPa 1190
490
Tensile Strength: Yield (Proof), MPa 800
300

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Maximum Temperature: Mechanical, °C 1000
430
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
3.1
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 360
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
97
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 40
17
Strength to Weight: Bending, points 30
18
Thermal Shock Resistance, points 34
14

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0 to 0.040
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 15 to 20
1.0 to 1.5
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0 to 0.3
Iron (Fe), % 0 to 4.0
95.4 to 97.8
Manganese (Mn), % 0 to 0.75
0.3 to 0.6
Molybdenum (Mo), % 3.0 to 5.0
0.45 to 0.65
Nickel (Ni), % 42.7 to 64
0 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.75
0.5 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 2.5 to 3.3
0