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ASTM A266 Carbon Steel vs. N08925 Stainless Steel

Both ASTM A266 carbon steel and N08925 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 N08925 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 26
45
Fatigue Strength, MPa 170 to 200
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 320 to 380
470
Tensile Strength: Ultimate (UTS), MPa 500 to 600
680
Tensile Strength: Yield (Proof), MPa 230 to 290
340

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 51 to 52
13
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
6.2
Embodied Energy, MJ/kg 18 to 19
84
Embodied Water, L/kg 46 to 47
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
250
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
23
Strength to Weight: Bending, points 18 to 20
21
Thermal Diffusivity, mm2/s 14
3.5
Thermal Shock Resistance, points 16 to 19
15