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Monel 400 vs. ASTM A203 Steel

Monel 400 belongs to the nickel alloys classification, while ASTM A203 steel belongs to the iron 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 Monel 400 and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 20 to 40
22 to 26
Fatigue Strength, MPa 230 to 290
210 to 280
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 62
73
Shear Strength, MPa 370 to 490
330 to 370
Tensile Strength: Ultimate (UTS), MPa 540 to 780
520 to 590
Tensile Strength: Yield (Proof), MPa 210 to 590
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 1000
410
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1300
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
52
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 50
3.2 to 4.0
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 7.9
1.6 to 1.7
Embodied Energy, MJ/kg 110
21 to 23
Embodied Water, L/kg 250
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
230 to 410
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17 to 25
18 to 21
Strength to Weight: Bending, points 17 to 21
18 to 20
Thermal Diffusivity, mm2/s 6.1
14
Thermal Shock Resistance, points 17 to 25
15 to 17