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ASTM A266 Carbon Steel vs. AISI 317 Stainless Steel

Both ASTM A266 carbon steel and AISI 317 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 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 26
35 to 55
Fatigue Strength, MPa 170 to 200
250 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 320 to 380
420 to 470
Tensile Strength: Ultimate (UTS), MPa 500 to 600
580 to 710
Tensile Strength: Yield (Proof), MPa 230 to 290
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
590
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51 to 52
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.3
Embodied Energy, MJ/kg 18 to 19
59
Embodied Water, L/kg 46 to 47
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
150 to 430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
20 to 25
Strength to Weight: Bending, points 18 to 20
20 to 22
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 16 to 19
12 to 15