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SAE-AISI 1008 Steel vs. S32050 Stainless Steel

Both SAE-AISI 1008 steel and S32050 stainless steel are iron alloys. They have 48% 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 1008 steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 93 to 100
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22 to 33
46
Fatigue Strength, MPa 150 to 220
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 220 to 230
540
Tensile Strength: Ultimate (UTS), MPa 330 to 370
770
Tensile Strength: Yield (Proof), MPa 190 to 310
370

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 62
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.4
6.0
Embodied Energy, MJ/kg 18
81
Embodied Water, L/kg 45
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
290
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
330
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 13
27
Strength to Weight: Bending, points 13 to 15
23
Thermal Diffusivity, mm2/s 17
3.3
Thermal Shock Resistance, points 10 to 12
17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 99.31 to 99.7
43.1 to 51.8
Manganese (Mn), % 0.3 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
6.0 to 6.6
Nickel (Ni), % 0
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.020