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S39277 Stainless Steel vs. N08925 Stainless Steel

Both S39277 stainless steel and N08925 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 79% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S39277 stainless steel and the bottom bar is N08925 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
45
Fatigue Strength, MPa 480
310
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
80
Shear Strength, MPa 600
470
Tensile Strength: Ultimate (UTS), MPa 930
680
Tensile Strength: Yield (Proof), MPa 660
340

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
33
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.2
6.2
Embodied Energy, MJ/kg 59
84
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 43
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
250
Resilience: Unit (Modulus of Resilience), kJ/m3 1070
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
23
Strength to Weight: Bending, points 27
21
Thermal Diffusivity, mm2/s 4.2
3.5
Thermal Shock Resistance, points 26
15

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.020
Chromium (Cr), % 24 to 26
19 to 21
Copper (Cu), % 1.2 to 2.0
0.8 to 1.5
Iron (Fe), % 56.8 to 64.3
42.7 to 50.1
Manganese (Mn), % 0 to 0.8
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
6.0 to 7.0
Nickel (Ni), % 6.5 to 8.0
24 to 26
Nitrogen (N), % 0.23 to 0.33
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.0020
0 to 0.030
Tungsten (W), % 0.8 to 1.2
0