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Type 4 Magnetic Alloy vs. ASTM Grade HG10 MNN Steel

Type 4 magnetic alloy belongs to the nickel alloys classification, while ASTM grade HG10 MNN steel belongs to the iron alloys. They have a modest 27% 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 (7, in this case) are not shown.

For each property being compared, the top bar is Type 4 magnetic alloy and the bottom bar is ASTM grade HG10 MNN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 2.0 to 40
23
Fatigue Strength, MPa 220 to 400
170
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 620 to 1100
590
Tensile Strength: Yield (Proof), MPa 270 to 1040
250

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 900
990
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 60
21
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 10
4.0
Embodied Energy, MJ/kg 140
58
Embodied Water, L/kg 210
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 2840
160
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 19 to 35
21
Strength to Weight: Bending, points 18 to 27
20
Thermal Shock Resistance, points 21 to 37
13

Alloy Composition

Carbon (C), % 0 to 0.050
0.070 to 0.11
Chromium (Cr), % 0 to 0.3
18.5 to 20.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0 to 0.5
Iron (Fe), % 9.5 to 17.5
57.9 to 66.5
Manganese (Mn), % 0 to 0.8
3.0 to 5.0
Molybdenum (Mo), % 3.5 to 6.0
0.25 to 0.45
Nickel (Ni), % 79 to 82
11.5 to 13.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.030