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AISI 302B Stainless Steel vs. S32808 Stainless Steel

Both AISI 302B stainless steel and S32808 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common. There are 33 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 AISI 302B stainless steel and the bottom bar is S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45
17
Fatigue Strength, MPa 210
350
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
81
Shear Strength, MPa 410
480
Tensile Strength: Ultimate (UTS), MPa 580
780
Tensile Strength: Yield (Proof), MPa 230
570

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 930
1100
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
24
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
4.0
Embodied Energy, MJ/kg 43
57
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 19
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
120
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 21
27
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 4.4
3.8
Thermal Shock Resistance, points 13
21

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 19
27 to 27.9
Iron (Fe), % 65.7 to 73
58.1 to 62.8
Manganese (Mn), % 0 to 2.0
0 to 1.1
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 8.0 to 10
7.0 to 8.2
Nitrogen (N), % 0 to 0.1
0.3 to 0.4
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 2.0 to 3.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0
2.1 to 2.5