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Type 3 Magnetic Alloy vs. ASTM Grade HL Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while ASTM grade HL steel belongs to the iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 43
11
Fatigue Strength, MPa 170
150
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 70
80
Tensile Strength: Ultimate (UTS), MPa 550
500
Tensile Strength: Yield (Proof), MPa 210
270

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1370
1390
Melting Onset (Solidus), °C 1320
1340
Specific Heat Capacity, J/kg-K 450
490
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 55
27
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.7
4.5
Embodied Energy, MJ/kg 120
65
Embodied Water, L/kg 220
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
48
Resilience: Unit (Modulus of Resilience), kJ/m3 120
180
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 17
18
Thermal Shock Resistance, points 18
11

Alloy Composition

Carbon (C), % 0 to 0.050
0.2 to 0.6
Chromium (Cr), % 2.0 to 3.0
28 to 32
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 4.0 to 6.0
0
Iron (Fe), % 9.9 to 19
40.8 to 53.8
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 75 to 78
18 to 22
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