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S82011 Stainless Steel vs. ASTM A321 Carbon Steel

Both S82011 stainless steel and ASTM A321 carbon steel are iron alloys. They have 73% of their average alloy composition in common. 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 S82011 stainless steel and the bottom bar is ASTM A321 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
21
Fatigue Strength, MPa 410
270
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 490
420
Tensile Strength: Ultimate (UTS), MPa 730
670
Tensile Strength: Yield (Proof), MPa 510
390

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1010
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 37
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
120
Resilience: Unit (Modulus of Resilience), kJ/m3 660
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
24
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 20
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.55
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 68.6 to 76.3
98.1 to 99.25
Manganese (Mn), % 2.0 to 3.0
0.6 to 0.9
Molybdenum (Mo), % 0.1 to 1.0
0
Nickel (Ni), % 1.0 to 2.0
0
Nitrogen (N), % 0.15 to 0.27
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.050