MakeItFrom.com
Menu (ESC)

ASTM Grade HD Steel vs. Type 4 Magnetic Alloy

ASTM grade HD steel belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. They have a modest 20% 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 (6, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
2.0 to 40
Fatigue Strength, MPa 140
220 to 400
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 590
620 to 1100
Tensile Strength: Yield (Proof), MPa 270
270 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 490
440
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 17
60
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 3.1
10
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 180
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
22 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 180
190 to 2840
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 26
22
Strength to Weight: Axial, points 21
19 to 35
Strength to Weight: Bending, points 20
18 to 27
Thermal Shock Resistance, points 19
21 to 37

Alloy Composition

Carbon (C), % 0 to 0.5
0 to 0.050
Chromium (Cr), % 26 to 30
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 58.4 to 70
9.5 to 17.5
Manganese (Mn), % 0 to 1.5
0 to 0.8
Molybdenum (Mo), % 0 to 0.5
3.5 to 6.0
Nickel (Ni), % 4.0 to 7.0
79 to 82
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 0.020