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Monel R-405 vs. Grade 300 Maraging Steel

Monel R-405 belongs to the nickel alloys classification, while grade 300 maraging steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is Monel R-405 and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 9.1 to 39
6.5 to 18
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 62
75
Shear Strength, MPa 350 to 370
640 to 1190
Tensile Strength: Ultimate (UTS), MPa 540 to 630
1030 to 2030
Tensile Strength: Yield (Proof), MPa 190 to 350
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1350
1480
Melting Onset (Solidus), °C 1300
1430
Specific Heat Capacity, J/kg-K 430
450
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 50
34
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 7.9
5.1
Embodied Energy, MJ/kg 110
68
Embodied Water, L/kg 250
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 170
130 to 170
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 17 to 20
35 to 68
Strength to Weight: Bending, points 17 to 18
28 to 43
Thermal Shock Resistance, points 17 to 20
31 to 62

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.3
0 to 0.030
Cobalt (Co), % 0
8.5 to 9.5
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
65 to 68.4
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 63 to 72
18 to 19
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0.025 to 0.060
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants