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EN 1.4958 Stainless Steel vs. EN 2.4951 Nickel

EN 1.4958 stainless steel belongs to the iron alloys classification, while EN 2.4951 nickel belongs to the nickel alloys. They have 55% of their average alloy composition in common. 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 1.4958 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, % 40
34
Fatigue Strength, MPa 170
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
76
Shear Strength, MPa 430
500
Tensile Strength: Ultimate (UTS), MPa 630
750
Tensile Strength: Yield (Proof), MPa 190
270

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1090
1150
Melting Completion (Liquidus), °C 1400
1360
Melting Onset (Solidus), °C 1350
1310
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
60
Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 5.3
9.3
Embodied Energy, MJ/kg 75
130
Embodied Water, L/kg 200
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
200
Resilience: Unit (Modulus of Resilience), kJ/m3 95
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.2
3.1
Thermal Shock Resistance, points 15
23

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0 to 0.3
Carbon (C), % 0.030 to 0.080
0.080 to 0.15
Chromium (Cr), % 19 to 22
18 to 21
Cobalt (Co), % 0 to 0.5
0 to 5.0
Copper (Cu), % 0 to 0.5
0 to 0.5
Iron (Fe), % 41.1 to 50.6
0 to 5.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 30 to 32.5
65.4 to 81.7
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0.2 to 0.5
0.2 to 0.6