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EN 1.4374 Stainless Steel vs. Nickel 690

EN 1.4374 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have a modest 33% 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4374 stainless steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
90
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
3.4 to 34
Fatigue Strength, MPa 340
180 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 550
420 to 570
Tensile Strength: Ultimate (UTS), MPa 800
640 to 990
Tensile Strength: Yield (Proof), MPa 400
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 920
1010
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
50
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.9
8.2
Embodied Energy, MJ/kg 42
120
Embodied Water, L/kg 150
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 400
160 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
21 to 33
Strength to Weight: Bending, points 25
20 to 27
Thermal Diffusivity, mm2/s 4.0
3.5
Thermal Shock Resistance, points 17
16 to 25

Alloy Composition

Carbon (C), % 0.050 to 0.1
0 to 0.050
Chromium (Cr), % 17.5 to 18.5
27 to 31
Copper (Cu), % 0 to 0.4
0 to 0.5
Iron (Fe), % 63.5 to 67.9
7.0 to 11
Manganese (Mn), % 9.0 to 10
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 5.0 to 6.0
58 to 66
Nitrogen (N), % 0.25 to 0.32
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.3 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015