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AISI 309Cb Stainless Steel vs. S82012 Stainless Steel

Both AISI 309Cb 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 32 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 AISI 309Cb stainless steel and the bottom bar is S82012 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
40
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 390
550
Tensile Strength: Ultimate (UTS), MPa 580
800
Tensile Strength: Yield (Proof), MPa 230
560

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 510
420
Maximum Temperature: Mechanical, °C 1090
950
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.1
2.4
Embodied Energy, MJ/kg 59
35
Embodied Water, L/kg 170
140

Common Calculations

PREN (Pitting Resistance) 23
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
290
Resilience: Unit (Modulus of Resilience), kJ/m3 140
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.0
3.9
Thermal Shock Resistance, points 13
23

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 22 to 24
19 to 20.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 56 to 66
71.3 to 77.9
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 0
0.1 to 0.6
Nickel (Ni), % 12 to 16
0.8 to 1.5
Niobium (Nb), % 0 to 1.1
0
Nitrogen (N), % 0
0.16 to 0.26
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.0050