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Type 3 Magnetic Alloy vs. ASTM A372 Grade A Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while ASTM A372 grade A steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 A372 grade A steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 43
22
Fatigue Strength, MPa 170
190
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 70
73
Shear Strength, MPa 380
320
Tensile Strength: Ultimate (UTS), MPa 550
500
Tensile Strength: Yield (Proof), MPa 210
270

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
400
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 55
1.8
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.7
1.4
Embodied Energy, MJ/kg 120
18
Embodied Water, L/kg 220
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
95
Resilience: Unit (Modulus of Resilience), kJ/m3 120
200
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 17
18
Thermal Shock Resistance, points 18
16

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.3
Chromium (Cr), % 2.0 to 3.0
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 4.0 to 6.0
0
Iron (Fe), % 9.9 to 19
98.3 to 99.85
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 75 to 78
0
Phosphorus (P), % 0 to 0.010
0 to 0.015
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.010