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ASTM A266 Carbon Steel vs. EN 1.4034 Stainless Steel

Both ASTM A266 carbon steel and EN 1.4034 stainless 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 ASTM A266 carbon steel and the bottom bar is EN 1.4034 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 26
11 to 14
Fatigue Strength, MPa 170 to 200
230 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 320 to 380
420 to 540
Tensile Strength: Ultimate (UTS), MPa 500 to 600
690 to 900
Tensile Strength: Yield (Proof), MPa 230 to 290
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51 to 52
30
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 18 to 19
27
Embodied Water, L/kg 46 to 47
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
81 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
400 to 1370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
25 to 32
Strength to Weight: Bending, points 18 to 20
22 to 27
Thermal Diffusivity, mm2/s 14
8.1
Thermal Shock Resistance, points 16 to 19
24 to 32