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SAE-AISI 5120 Steel vs. S32906 Stainless Steel

Both SAE-AISI 5120 steel and S32906 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 62% 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 5120 steel and the bottom bar is S32906 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16
28
Fatigue Strength, MPa 210
460
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 310
550
Tensile Strength: Ultimate (UTS), MPa 500
850
Tensile Strength: Yield (Proof), MPa 320
620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
13
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.7
Embodied Energy, MJ/kg 19
52
Embodied Water, L/kg 49
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
220
Resilience: Unit (Modulus of Resilience), kJ/m3 280
950
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
30
Strength to Weight: Bending, points 18
26
Thermal Diffusivity, mm2/s 13
3.6
Thermal Shock Resistance, points 16
23

Alloy Composition

Carbon (C), % 0.17 to 0.22
0 to 0.030
Chromium (Cr), % 0.7 to 0.9
28 to 30
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 97.6 to 98.3
56.6 to 63.6
Manganese (Mn), % 0.7 to 0.9
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 0
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030