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S82031 Stainless Steel vs. AISI 309HCb Stainless Steel

Both S82031 stainless steel and AISI 309HCb stainless steel are iron alloys. Both are furnished in the annealed condition. They have 86% of their average alloy composition in common. There are 32 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 S82031 stainless steel and the bottom bar is AISI 309HCb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
46
Fatigue Strength, MPa 490
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 540
410
Tensile Strength: Ultimate (UTS), MPa 780
590
Tensile Strength: Yield (Proof), MPa 570
230

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 430
510
Maximum Temperature: Mechanical, °C 980
1090
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
16

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 13
23
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
4.1
Embodied Energy, MJ/kg 39
59
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 27
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
210
Resilience: Unit (Modulus of Resilience), kJ/m3 820
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 22
13

Alloy Composition

Carbon (C), % 0 to 0.050
0.040 to 0.1
Chromium (Cr), % 19 to 22
22 to 24
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 68 to 78.3
56 to 66
Manganese (Mn), % 0 to 2.5
0 to 2.0
Molybdenum (Mo), % 0.6 to 1.4
0
Nickel (Ni), % 2.0 to 4.0
12 to 16
Niobium (Nb), % 0
0 to 1.1
Nitrogen (N), % 0.14 to 0.24
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 0.75
Sulfur (S), % 0 to 0.0050
0 to 0.030