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EN 1.4938 Stainless Steel vs. EN 2.4951 Nickel

EN 1.4938 stainless steel belongs to the iron alloys classification, while EN 2.4951 nickel belongs to the nickel alloys. 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 1.4938 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, % 16 to 17
34
Fatigue Strength, MPa 390 to 520
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
76
Shear Strength, MPa 540 to 630
500
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
750
Tensile Strength: Yield (Proof), MPa 640 to 870
270

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 750
1150
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.3
9.3
Embodied Energy, MJ/kg 47
130
Embodied Water, L/kg 110
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
200
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 31 to 37
25
Strength to Weight: Bending, points 26 to 29
22
Thermal Diffusivity, mm2/s 8.1
3.1
Thermal Shock Resistance, points 30 to 35
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.080 to 0.15
0.080 to 0.15
Chromium (Cr), % 11 to 12.5
18 to 21
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 80.5 to 84.8
0 to 5.0
Manganese (Mn), % 0.4 to 0.9
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
65.4 to 81.7
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.6
Vanadium (V), % 0.25 to 0.4
0