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Type 3 Magnetic Alloy vs. ASTM Grade HD Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while ASTM grade HD steel belongs to the iron alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 43
9.1
Fatigue Strength, MPa 170
140
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 70
80
Tensile Strength: Ultimate (UTS), MPa 550
590
Tensile Strength: Yield (Proof), MPa 210
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1370
1410
Melting Onset (Solidus), °C 1320
1370
Specific Heat Capacity, J/kg-K 450
490
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 55
17
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 8.7
3.1
Embodied Energy, MJ/kg 120
45
Embodied Water, L/kg 220
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
44
Resilience: Unit (Modulus of Resilience), kJ/m3 120
180
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 22
26
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 17
20
Thermal Shock Resistance, points 18
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.5
Chromium (Cr), % 2.0 to 3.0
26 to 30
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 4.0 to 6.0
0
Iron (Fe), % 9.9 to 19
58.4 to 70
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 75 to 78
4.0 to 7.0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040