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ACI-ASTM CG8M Steel vs. ASTM A266 Carbon Steel

Both ACI-ASTM CG8M steel and ASTM A266 carbon steel are iron alloys. There are 30 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 ACI-ASTM CG8M steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
21 to 26
Fatigue Strength, MPa 280
170 to 200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 550
500 to 600
Tensile Strength: Yield (Proof), MPa 300
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1020
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
51 to 52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.4
Embodied Energy, MJ/kg 56
18 to 19
Embodied Water, L/kg 160
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140 to 230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
18 to 21
Strength to Weight: Bending, points 19
18 to 20
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 12
16 to 19