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S44401 Stainless Steel vs. ASTM A266 Carbon Steel

Both S44401 stainless 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 S44401 stainless steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
21 to 26
Fatigue Strength, MPa 200
170 to 200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 300
320 to 380
Tensile Strength: Ultimate (UTS), MPa 480
500 to 600
Tensile Strength: Yield (Proof), MPa 300
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 930
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 22
51 to 52
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.4
Embodied Energy, MJ/kg 40
18 to 19
Embodied Water, L/kg 130
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230
140 to 230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
18 to 21
Strength to Weight: Bending, points 18
18 to 20
Thermal Diffusivity, mm2/s 5.9
14
Thermal Shock Resistance, points 17
16 to 19