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EN 1.4031 Stainless Steel vs. Grade CU5MCuC Nickel

EN 1.4031 stainless steel belongs to the iron alloys classification, while grade CU5MCuC nickel belongs to the nickel alloys. They have 45% of their average alloy composition in common. There are 26 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 1.4031 stainless steel and the bottom bar is grade CU5MCuC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 13
22
Fatigue Strength, MPa 220 to 400
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 670 to 900
580
Tensile Strength: Yield (Proof), MPa 390 to 730
270

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Mechanical, °C 770
980
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
45
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 1.9
7.7
Embodied Energy, MJ/kg 27
110
Embodied Water, L/kg 100
230

Common Calculations

PREN (Pitting Resistance) 14
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 32
20
Strength to Weight: Bending, points 22 to 27
19
Thermal Shock Resistance, points 23 to 32
16

Alloy Composition

Carbon (C), % 0.36 to 0.42
0 to 0.050
Chromium (Cr), % 12.5 to 14.5
19.5 to 23.5
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 83 to 87.1
22.2 to 37.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
38 to 44
Niobium (Nb), % 0
0.6 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030