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EN 1.4594 Stainless Steel vs. EN 2.4951 Nickel

EN 1.4594 stainless steel belongs to the iron alloys classification, while EN 2.4951 nickel belongs to the nickel alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4594 stainless steel and the bottom bar is EN 2.4951 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 490 to 620
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
76
Shear Strength, MPa 620 to 700
500
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
750
Tensile Strength: Yield (Proof), MPa 810 to 1140
270

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 820
1150
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
60
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 3.2
9.3
Embodied Energy, MJ/kg 45
130
Embodied Water, L/kg 130
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
200
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 36 to 41
25
Strength to Weight: Bending, points 29 to 31
22
Thermal Diffusivity, mm2/s 4.4
3.1
Thermal Shock Resistance, points 34 to 39
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.070
0.080 to 0.15
Chromium (Cr), % 13 to 15
18 to 21
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 1.2 to 2.0
0 to 0.5
Iron (Fe), % 72.6 to 79.5
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.2 to 2.0
0
Nickel (Ni), % 5.0 to 6.0
65.4 to 81.7
Niobium (Nb), % 0.15 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.6