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ASTM A225 Steel vs. ASTM A266 Carbon Steel

Both ASTM A225 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 A225 steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 250
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 23
21 to 26
Fatigue Strength, MPa 330 to 390
170 to 200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390 to 520
320 to 380
Tensile Strength: Ultimate (UTS), MPa 620 to 830
500 to 600
Tensile Strength: Yield (Proof), MPa 460 to 550
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24 to 25
18 to 19
Embodied Water, L/kg 48
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 820
140 to 230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 29
18 to 21
Strength to Weight: Bending, points 21 to 25
18 to 20
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 18 to 24
16 to 19