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EN 1.3956 Stainless Steel vs. Nickel 689

EN 1.3956 stainless steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.3956 stainless steel and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 27
23
Fatigue Strength, MPa 240
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 650
1250
Tensile Strength: Yield (Proof), MPa 330
690

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1080
990
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 22
70
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.8
11
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
240
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 23
41
Strength to Weight: Bending, points 21
30
Thermal Shock Resistance, points 18
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.060
0.1 to 0.2
Chromium (Cr), % 20.5 to 23.5
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 51.9 to 62.1
0 to 5.0
Manganese (Mn), % 4.0 to 6.0
0 to 0.5
Molybdenum (Mo), % 1.5 to 3.0
9.0 to 10.5
Nickel (Ni), % 11.5 to 13.5
48.3 to 60.9
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8
Vanadium (V), % 0.1 to 0.3
0