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ASTM A285 Carbon Steel vs. S38815 Stainless Steel

Both ASTM A285 carbon steel and S38815 stainless steel are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A285 carbon steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 30 to 34
34
Fatigue Strength, MPa 150 to 180
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 250 to 290
410
Tensile Strength: Ultimate (UTS), MPa 380 to 450
610
Tensile Strength: Yield (Proof), MPa 190 to 230
290

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 400
860
Melting Completion (Liquidus), °C 1470
1360
Melting Onset (Solidus), °C 1420 to 1430
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 18
54
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 16
22
Strength to Weight: Bending, points 15 to 17
21
Thermal Shock Resistance, points 12 to 14
15