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EN 1.4938 Stainless Steel vs. Nickel 908

EN 1.4938 stainless steel belongs to the iron alloys classification, while nickel 908 belongs to the nickel alloys. They have 48% of their average alloy composition in common. There are 29 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 nickel 908.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 16 to 17
11
Fatigue Strength, MPa 390 to 520
450
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 76
70
Shear Strength, MPa 540 to 630
800
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
1340
Tensile Strength: Yield (Proof), MPa 640 to 870
930

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 750
920
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 30
11
Thermal Expansion, µm/m-K 11
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.3
9.3
Embodied Energy, MJ/kg 47
140
Embodied Water, L/kg 110
170

Common Calculations

PREN (Pitting Resistance) 18
4.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
2340
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 31 to 37
45
Strength to Weight: Bending, points 26 to 29
33
Thermal Diffusivity, mm2/s 8.1
2.9
Thermal Shock Resistance, points 30 to 35
61

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0 to 0.012
Carbon (C), % 0.080 to 0.15
0 to 0.030
Chromium (Cr), % 11 to 12.5
3.8 to 4.5
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 80.5 to 84.8
35.6 to 44.6
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
47 to 51
Niobium (Nb), % 0
2.7 to 3.3
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0050
Titanium (Ti), % 0
1.2 to 1.8
Vanadium (V), % 0.25 to 0.4
0