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Type 3 Magnetic Alloy vs. Grade 250 Maraging Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while grade 250 maraging steel belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is Type 3 magnetic alloy and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 43
7.3 to 17
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 70
75
Shear Strength, MPa 380
600 to 1060
Tensile Strength: Ultimate (UTS), MPa 550
970 to 1800
Tensile Strength: Yield (Proof), MPa 210
660 to 1740

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1370
1480
Melting Onset (Solidus), °C 1320
1430
Specific Heat Capacity, J/kg-K 450
450
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 55
32
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 8.7
4.9
Embodied Energy, MJ/kg 120
65
Embodied Water, L/kg 220
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
130 to 150
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 18
33 to 61
Strength to Weight: Bending, points 17
26 to 40
Thermal Shock Resistance, points 18
29 to 54

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 0.050
0 to 0.030
Chromium (Cr), % 2.0 to 3.0
0
Cobalt (Co), % 0 to 0.5
7.0 to 8.5
Copper (Cu), % 4.0 to 6.0
0
Iron (Fe), % 9.9 to 19
66.3 to 71.1
Manganese (Mn), % 0 to 1.5
0 to 0.1
Molybdenum (Mo), % 0 to 0.5
4.6 to 5.2
Nickel (Ni), % 75 to 78
17 to 19
Phosphorus (P), % 0 to 0.010
0 to 0.010
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0
0.3 to 0.5
Zirconium (Zr), % 0
0 to 0.020