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ASTM A285 Carbon Steel vs. S66286 Stainless Steel

Both ASTM A285 carbon steel and S66286 stainless steel are iron alloys. There are 30 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 A285 carbon steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 30 to 34
17 to 40
Fatigue Strength, MPa 150 to 180
240 to 410
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Shear Strength, MPa 250 to 290
420 to 630
Tensile Strength: Ultimate (UTS), MPa 380 to 450
620 to 1020
Tensile Strength: Yield (Proof), MPa 190 to 230
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
920
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420 to 1430
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
26
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
6.0
Embodied Energy, MJ/kg 18
87
Embodied Water, L/kg 46
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
190 to 1150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 16
22 to 36
Strength to Weight: Bending, points 15 to 17
20 to 28
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 12 to 14
13 to 22