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EN 1.4557 Stainless Steel vs. Grade CW6MC Nickel

EN 1.4557 stainless steel belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. They have 49% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4557 stainless steel and the bottom bar is grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
28
Fatigue Strength, MPa 260
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 560
540
Tensile Strength: Yield (Proof), MPa 300
310

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1090
980
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 29
80
Density, g/cm3 8.0
8.6
Embodied Carbon, kg CO2/kg material 5.6
14
Embodied Energy, MJ/kg 76
200
Embodied Water, L/kg 190
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
130
Resilience: Unit (Modulus of Resilience), kJ/m3 210
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 4.0
2.8
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.060
Chromium (Cr), % 19.5 to 20.5
20 to 23
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
0 to 5.0
Manganese (Mn), % 0 to 1.2
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
8.0 to 10
Nickel (Ni), % 17.5 to 19.5
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030