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N08904 Stainless Steel vs. S39277 Stainless Steel

Both N08904 stainless steel and S39277 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 80% of their average alloy composition in common. There are 33 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 N08904 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
28
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Shear Strength, MPa 370
600
Tensile Strength: Ultimate (UTS), MPa 540
930
Tensile Strength: Yield (Proof), MPa 240
660

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 430
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 32
23
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.8
4.2
Embodied Energy, MJ/kg 79
59
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 37
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
240
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
33
Strength to Weight: Bending, points 18
27
Thermal Diffusivity, mm2/s 3.1
4.2
Thermal Shock Resistance, points 12
26

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.025
Chromium (Cr), % 19 to 23
24 to 26
Copper (Cu), % 1.0 to 2.0
1.2 to 2.0
Iron (Fe), % 38.8 to 53
56.8 to 64.3
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 4.0 to 5.0
3.0 to 4.0
Nickel (Ni), % 23 to 28
6.5 to 8.0
Nitrogen (N), % 0 to 0.1
0.23 to 0.33
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.035
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2