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S32506 Stainless Steel vs. S32808 Stainless Steel

Both S32506 stainless steel and S32808 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is S32506 stainless steel and the bottom bar is S32808 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 21
17
Fatigue Strength, MPa 330
350
Poisson's Ratio 0.27
0.27
Rockwell C Hardness 28
28
Shear Modulus, GPa 81
81
Shear Strength, MPa 440
480
Tensile Strength: Ultimate (UTS), MPa 710
780
Tensile Strength: Yield (Proof), MPa 500
570

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
460
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
24
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.9
4.0
Embodied Energy, MJ/kg 54
57
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 38
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 620
790
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.3
3.8
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24 to 26
27 to 27.9
Iron (Fe), % 60.8 to 67.4
58.1 to 62.8
Manganese (Mn), % 0 to 1.0
0 to 1.1
Molybdenum (Mo), % 3.0 to 3.5
0.8 to 1.2
Nickel (Ni), % 5.5 to 7.2
7.0 to 8.2
Nitrogen (N), % 0.080 to 0.2
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.9
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Tungsten (W), % 0.050 to 0.3
2.1 to 2.5