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SAE-AISI 9254 Steel vs. S82011 Stainless Steel

Both SAE-AISI 9254 steel and S82011 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 74% of their average alloy composition in common. 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 SAE-AISI 9254 steel and the bottom bar is S82011 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
34
Fatigue Strength, MPa 280
410
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
78
Shear Strength, MPa 410
490
Tensile Strength: Ultimate (UTS), MPa 660
730
Tensile Strength: Yield (Proof), MPa 410
510

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 410
1010
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 20
37
Embodied Water, L/kg 49
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
220
Resilience: Unit (Modulus of Resilience), kJ/m3 450
660
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
27
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 20
20

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.030
Chromium (Cr), % 0.6 to 0.8
20.5 to 23.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 96.1 to 97.1
68.6 to 76.3
Manganese (Mn), % 0.6 to 0.8
2.0 to 3.0
Molybdenum (Mo), % 0
0.1 to 1.0
Nickel (Ni), % 0
1.0 to 2.0
Nitrogen (N), % 0
0.15 to 0.27
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 1.2 to 1.6
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.020