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ASTM Grade HN Steel vs. Type 1 Magnetic Alloy

Both ASTM grade HN steel and Type 1 magnetic alloy are iron alloys. They have 77% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is Type 1 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
4.0 to 38
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 500
500 to 830

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
31
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 4.6
5.6
Embodied Energy, MJ/kg 66
77
Embodied Water, L/kg 180
130

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
17 to 28
Strength to Weight: Bending, points 18
17 to 24
Thermal Shock Resistance, points 11
16 to 26

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.050
Chromium (Cr), % 19 to 23
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 44.9 to 57.8
50.7 to 56.5
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 0 to 0.5
0 to 0.3
Nickel (Ni), % 23 to 27
43.5 to 46.5
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030