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S38815 Stainless Steel vs. N08925 Stainless Steel

Both S38815 stainless steel and N08925 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is N08925 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
45
Fatigue Strength, MPa 230
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Shear Strength, MPa 410
470
Tensile Strength: Ultimate (UTS), MPa 610
680
Tensile Strength: Yield (Proof), MPa 290
340

Thermal Properties

Latent Heat of Fusion, J/g 370
300
Maximum Temperature: Corrosion, °C 400
420
Maximum Temperature: Mechanical, °C 860
1100
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 500
460
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
33
Density, g/cm3 7.5
8.1
Embodied Carbon, kg CO2/kg material 3.8
6.2
Embodied Energy, MJ/kg 54
84
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 18
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
250
Resilience: Unit (Modulus of Resilience), kJ/m3 220
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
23
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 13 to 15
19 to 21
Copper (Cu), % 0.75 to 1.5
0.8 to 1.5
Iron (Fe), % 56.1 to 67
42.7 to 50.1
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
6.0 to 7.0
Nickel (Ni), % 13 to 17
24 to 26
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 5.5 to 6.5
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030