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EN 1.3955 Stainless Steel vs. Nickel 693

EN 1.3955 stainless steel belongs to the iron alloys classification, while nickel 693 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 (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.3955 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, % 23
34
Fatigue Strength, MPa 150
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 520
660
Tensile Strength: Yield (Proof), MPa 220
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 930
1010
Melting Completion (Liquidus), °C 1430
1350
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
9.1
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 16
60
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.2
9.9
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 140
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
190
Resilience: Unit (Modulus of Resilience), kJ/m3 130
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 4.1
2.3
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0
2.5 to 4.0
Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 16.5 to 18.5
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 65.5 to 73.5
2.5 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 10 to 12
53.3 to 67.5
Niobium (Nb), % 0
0.5 to 2.5
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 1.0