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ASTM A285 Carbon Steel vs. S32803 Stainless Steel

Both ASTM A285 carbon steel and S32803 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 A285 carbon steel and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
210
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 30 to 34
18
Fatigue Strength, MPa 150 to 180
350
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 250 to 290
420
Tensile Strength: Ultimate (UTS), MPa 380 to 450
680
Tensile Strength: Yield (Proof), MPa 190 to 230
560

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420 to 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 53
16
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.7
Embodied Energy, MJ/kg 18
53
Embodied Water, L/kg 46
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
760
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 16
25
Strength to Weight: Bending, points 15 to 17
22
Thermal Diffusivity, mm2/s 14
4.4
Thermal Shock Resistance, points 12 to 14
22