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ASTM A266 Carbon Steel vs. ASTM Grade HC Steel

Both ASTM A266 carbon steel and ASTM grade HC 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 A266 carbon steel and the bottom bar is ASTM grade HC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 26
6.0
Fatigue Strength, MPa 170 to 200
96
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 500 to 600
430
Tensile Strength: Yield (Proof), MPa 230 to 290
200

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51 to 52
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
14
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18 to 19
40
Embodied Water, L/kg 46 to 47
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
21
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
95
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 18 to 21
16
Strength to Weight: Bending, points 18 to 20
16
Thermal Diffusivity, mm2/s 14
4.5
Thermal Shock Resistance, points 16 to 19
14