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ASTM A387 Grade 22L Class 1 vs. Type 4 Magnetic Alloy

ASTM A387 grade 22L class 1 belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 22L class 1 and the bottom bar is Type 4 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
2.0 to 40
Fatigue Strength, MPa 160
220 to 400
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 74
73
Shear Strength, MPa 310
420 to 630
Tensile Strength: Ultimate (UTS), MPa 500
620 to 1100
Tensile Strength: Yield (Proof), MPa 230
270 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
900
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
60
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 1.7
10
Embodied Energy, MJ/kg 23
140
Embodied Water, L/kg 58
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
22 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 140
190 to 2840
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 18
19 to 35
Strength to Weight: Bending, points 18
18 to 27
Thermal Shock Resistance, points 14
21 to 37

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.050
Chromium (Cr), % 2.0 to 2.5
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 95.2 to 96.8
9.5 to 17.5
Manganese (Mn), % 0.3 to 0.6
0 to 0.8
Molybdenum (Mo), % 0.9 to 1.1
3.5 to 6.0
Nickel (Ni), % 0
79 to 82
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.020