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ASTM Grade HD Steel vs. SAE-AISI 1548 Steel

Both ASTM grade HD steel and SAE-AISI 1548 steel are iron alloys. They have 65% of their average alloy composition in common. There are 29 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 grade HD steel and the bottom bar is SAE-AISI 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
11 to 16
Fatigue Strength, MPa 140
270 to 430
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 590
730 to 830
Tensile Strength: Yield (Proof), MPa 270
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 45
19
Embodied Water, L/kg 180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 180
470 to 1280
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
26 to 30
Strength to Weight: Bending, points 20
23 to 25
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 19
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.5
0.44 to 0.52
Chromium (Cr), % 26 to 30
0
Iron (Fe), % 58.4 to 70
98 to 98.5
Manganese (Mn), % 0 to 1.5
1.1 to 1.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 4.0 to 7.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0 to 0.050