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EN 1.4571 Stainless Steel vs. Grade CW6M Nickel

EN 1.4571 stainless steel belongs to the iron alloys classification, while grade CW6M nickel 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 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4571 stainless steel and the bottom bar is grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 14 to 40
29
Fatigue Strength, MPa 200 to 330
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
84
Tensile Strength: Ultimate (UTS), MPa 600 to 900
560
Tensile Strength: Yield (Proof), MPa 230 to 570
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 950
970
Melting Completion (Liquidus), °C 1440
1530
Melting Onset (Solidus), °C 1400
1470
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
65
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 3.9
13
Embodied Energy, MJ/kg 54
170
Embodied Water, L/kg 150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
140
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 820
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21 to 32
18
Strength to Weight: Bending, points 20 to 26
17
Thermal Shock Resistance, points 13 to 20
16

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 16.5 to 18.5
17 to 20
Iron (Fe), % 61.7 to 71
0 to 3.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
17 to 20
Nickel (Ni), % 10.5 to 13.5
54.9 to 66
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.7
0