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Nickel 690 vs. EN 1.4742 Stainless Steel

Nickel 690 belongs to the nickel alloys classification, while EN 1.4742 stainless steel belongs to the iron alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is nickel 690 and the bottom bar is EN 1.4742 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.4 to 34
17
Fatigue Strength, MPa 180 to 300
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 420 to 570
370
Tensile Strength: Ultimate (UTS), MPa 640 to 990
600
Tensile Strength: Yield (Proof), MPa 250 to 760
300

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1010
1000
Melting Completion (Liquidus), °C 1380
1420
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 14
19
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 50
9.0
Density, g/cm3 8.3
7.6
Embodied Carbon, kg CO2/kg material 8.2
2.2
Embodied Energy, MJ/kg 120
32
Embodied Water, L/kg 290
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
84
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 33
22
Strength to Weight: Bending, points 20 to 27
21
Thermal Diffusivity, mm2/s 3.5
5.1
Thermal Shock Resistance, points 16 to 25
21

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.050
0 to 0.12
Chromium (Cr), % 27 to 31
17 to 19
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
77.2 to 81.6
Manganese (Mn), % 0 to 0.5
0 to 1.0
Nickel (Ni), % 58 to 66
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0.7 to 1.4
Sulfur (S), % 0 to 0.015
0 to 0.015