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EN 1.4931 Steel vs. ASTM A266 Carbon Steel

Both EN 1.4931 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4931 steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
21 to 26
Fatigue Strength, MPa 410
170 to 200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 810
500 to 600
Tensile Strength: Yield (Proof), MPa 620
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
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 24
51 to 52
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.4
Embodied Energy, MJ/kg 42
18 to 19
Embodied Water, L/kg 100
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 970
140 to 230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
18 to 21
Strength to Weight: Bending, points 25
18 to 20
Thermal Diffusivity, mm2/s 6.5
14
Thermal Shock Resistance, points 22
16 to 19