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ASTM A266 Carbon Steel vs. AISI 420F Stainless Steel

Both ASTM A266 carbon steel and AISI 420F stainless steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A266 carbon steel and the bottom bar is AISI 420F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 26
18
Fatigue Strength, MPa 170 to 200
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 320 to 380
460
Tensile Strength: Ultimate (UTS), MPa 500 to 600
740
Tensile Strength: Yield (Proof), MPa 230 to 290
430

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
760
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
25
Thermal Expansion, µm/m-K 12
10

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
28
Embodied Water, L/kg 46 to 47
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
480
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
27
Strength to Weight: Bending, points 18 to 20
23
Thermal Diffusivity, mm2/s 14
6.8
Thermal Shock Resistance, points 16 to 19
27