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S32808 Stainless Steel vs. S82012 Stainless Steel

Both S32808 stainless steel and S82012 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 83% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S32808 stainless steel and the bottom bar is S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 17
40
Fatigue Strength, MPa 350
480
Poisson's Ratio 0.27
0.28
Rockwell C Hardness 28
27
Shear Modulus, GPa 81
78
Shear Strength, MPa 480
550
Tensile Strength: Ultimate (UTS), MPa 780
800
Tensile Strength: Yield (Proof), MPa 570
560

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.0
2.4
Embodied Energy, MJ/kg 57
35
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 40
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
290
Resilience: Unit (Modulus of Resilience), kJ/m3 790
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
29
Strength to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 3.8
3.9
Thermal Shock Resistance, points 21
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 27 to 27.9
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 58.1 to 62.8
71.3 to 77.9
Manganese (Mn), % 0 to 1.1
2.0 to 4.0
Molybdenum (Mo), % 0.8 to 1.2
0.1 to 0.6
Nickel (Ni), % 7.0 to 8.2
0.8 to 1.5
Nitrogen (N), % 0.3 to 0.4
0.16 to 0.26
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.0050
Tungsten (W), % 2.1 to 2.5
0