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AISI 347 Stainless Steel vs. ASTM A266 Carbon Steel

Both AISI 347 stainless steel and ASTM A266 carbon steel are iron alloys. There are 31 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 AISI 347 stainless steel and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 210
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34 to 46
21 to 26
Fatigue Strength, MPa 220 to 270
170 to 200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430 to 460
320 to 380
Tensile Strength: Ultimate (UTS), MPa 610 to 690
500 to 600
Tensile Strength: Yield (Proof), MPa 240 to 350
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 870
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
51 to 52
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.4
Embodied Energy, MJ/kg 52
18 to 19
Embodied Water, L/kg 150
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 310
140 to 230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22 to 25
18 to 21
Strength to Weight: Bending, points 20 to 22
18 to 20
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 13 to 15
16 to 19