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ASTM A266 Carbon Steel vs. EN 1.7729 Steel

Both ASTM A266 carbon steel and EN 1.7729 steel are iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A266 carbon steel and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 26
17
Fatigue Strength, MPa 170 to 200
500
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 43
56
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 380
560
Tensile Strength: Ultimate (UTS), MPa 500 to 600
910
Tensile Strength: Yield (Proof), MPa 230 to 290
750

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
430
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51 to 52
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18 to 19
49
Embodied Water, L/kg 46 to 47
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
150
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
1500
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
32
Strength to Weight: Bending, points 18 to 20
27
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 16 to 19
27