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EN 1.4406 Stainless Steel vs. Nickel 689

EN 1.4406 stainless steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4406 stainless steel and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
350
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 42
23
Fatigue Strength, MPa 280
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Shear Strength, MPa 470
790
Tensile Strength: Ultimate (UTS), MPa 680
1250
Tensile Strength: Yield (Proof), MPa 320
690

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 950
990
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
70
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 3.7
11
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 150
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
240
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
41
Strength to Weight: Bending, points 22
30
Thermal Shock Resistance, points 15
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.030
0.1 to 0.2
Chromium (Cr), % 16.5 to 18.5
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 63.2 to 71.4
0 to 5.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 2.0 to 2.5
9.0 to 10.5
Nickel (Ni), % 10 to 12.5
48.3 to 60.9
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8