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EN 1.4938 Stainless Steel vs. Monel 400

EN 1.4938 stainless steel belongs to the iron alloys classification, while Monel 400 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 Monel 400.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 16 to 17
20 to 40
Fatigue Strength, MPa 390 to 520
230 to 290
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
62
Shear Strength, MPa 540 to 630
370 to 490
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
540 to 780
Tensile Strength: Yield (Proof), MPa 640 to 870
210 to 590

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 750
1000
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1420
1300
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 30
23
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
50
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.3
7.9
Embodied Energy, MJ/kg 47
110
Embodied Water, L/kg 110
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
140 to 1080
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 31 to 37
17 to 25
Strength to Weight: Bending, points 26 to 29
17 to 21
Thermal Diffusivity, mm2/s 8.1
6.1
Thermal Shock Resistance, points 30 to 35
17 to 25

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.3
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
28 to 34
Iron (Fe), % 80.5 to 84.8
0 to 2.5
Manganese (Mn), % 0.4 to 0.9
0 to 2.0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
63 to 72
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.024
Vanadium (V), % 0.25 to 0.4
0

Comparable Variants