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EN 1.4581 Stainless Steel vs. Nickel 693

EN 1.4581 stainless steel belongs to the iron alloys classification, while nickel 693 belongs to the nickel alloys. They have a modest 35% 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 (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4581 stainless steel and the bottom bar is nickel 693.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
34
Fatigue Strength, MPa 150
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 510
660
Tensile Strength: Yield (Proof), MPa 210
310

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 990
1010
Melting Completion (Liquidus), °C 1440
1350
Melting Onset (Solidus), °C 1400
1310
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
9.1
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 21
60
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 4.2
9.9
Embodied Energy, MJ/kg 59
140
Embodied Water, L/kg 160
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 110
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 3.9
2.3
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 0
2.5 to 4.0
Carbon (C), % 0 to 0.070
0 to 0.15
Chromium (Cr), % 18 to 20
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 61.4 to 71
2.5 to 6.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 9.0 to 12
53.3 to 67.5
Niobium (Nb), % 0 to 1.0
0.5 to 2.5
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 1.0