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EN 1.4424 Stainless Steel vs. EN 2.4951 Nickel

EN 1.4424 stainless steel belongs to the iron alloys classification, while EN 2.4951 nickel belongs to the nickel alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 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 1.4424 stainless steel and the bottom bar is EN 2.4951 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
34
Fatigue Strength, MPa 350 to 370
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
76
Shear Strength, MPa 520
500
Tensile Strength: Ultimate (UTS), MPa 800
750
Tensile Strength: Yield (Proof), MPa 480 to 500
270

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 960
1150
Melting Completion (Liquidus), °C 1430
1360
Melting Onset (Solidus), °C 1390
1310
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 12
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 7.7
8.5
Embodied Carbon, kg CO2/kg material 3.4
9.3
Embodied Energy, MJ/kg 46
130
Embodied Water, L/kg 140
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
200
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 640
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 25
22
Thermal Diffusivity, mm2/s 3.5
3.1
Thermal Shock Resistance, points 23
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.030
0.080 to 0.15
Chromium (Cr), % 18 to 19
18 to 21
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 68.6 to 72.4
0 to 5.0
Manganese (Mn), % 1.2 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 4.5 to 5.2
65.4 to 81.7
Nitrogen (N), % 0.050 to 0.1
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 1.4 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.6