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ASTM A203 Steel vs. ASTM A266 Carbon Steel

Both ASTM A203 steel and ASTM A266 carbon steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A203 steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22 to 26
21 to 26
Fatigue Strength, MPa 210 to 280
170 to 200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330 to 370
320 to 380
Tensile Strength: Ultimate (UTS), MPa 520 to 590
500 to 600
Tensile Strength: Yield (Proof), MPa 290 to 390
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
51 to 52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
1.4
Embodied Energy, MJ/kg 21 to 23
18 to 19
Embodied Water, L/kg 50 to 52
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
140 to 230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
18 to 21
Strength to Weight: Bending, points 18 to 20
18 to 20
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15 to 17
16 to 19