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ASTM Grade HD Steel vs. ASTM A266 Carbon Steel

Both ASTM grade HD steel and ASTM A266 carbon steel are iron alloys. 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 ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
21 to 26
Fatigue Strength, MPa 140
170 to 200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 590
500 to 600
Tensile Strength: Yield (Proof), MPa 270
230 to 290

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 to 52
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 to 8.2

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
18 to 19
Embodied Water, L/kg 180
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140 to 230
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
18 to 21
Strength to Weight: Bending, points 20
18 to 20
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 19
16 to 19