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SAE-AISI 1055 Steel vs. Type 4 Magnetic Alloy

SAE-AISI 1055 steel 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 SAE-AISI 1055 steel 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, % 11 to 14
2.0 to 40
Fatigue Strength, MPa 260 to 390
220 to 400
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 72
73
Shear Strength, MPa 440 to 450
420 to 630
Tensile Strength: Ultimate (UTS), MPa 730 to 750
620 to 1100
Tensile Strength: Yield (Proof), MPa 400 to 630
270 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.4
10
Embodied Energy, MJ/kg 18
140
Embodied Water, L/kg 46
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 85
22 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1070
190 to 2840
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 26
19 to 35
Strength to Weight: Bending, points 23
18 to 27
Thermal Shock Resistance, points 23 to 24
21 to 37

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.050
Chromium (Cr), % 0
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98.4 to 98.9
9.5 to 17.5
Manganese (Mn), % 0.6 to 0.9
0 to 0.8
Molybdenum (Mo), % 0
3.5 to 6.0
Nickel (Ni), % 0
79 to 82
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.020