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N08801 Stainless Steel vs. S38815 Stainless Steel

Both N08801 stainless steel and S38815 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 75% 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 N08801 stainless steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
34
Fatigue Strength, MPa 260
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 570
410
Tensile Strength: Ultimate (UTS), MPa 860
610
Tensile Strength: Yield (Proof), MPa 190
290

Thermal Properties

Latent Heat of Fusion, J/g 300
370
Maximum Temperature: Corrosion, °C 630
400
Maximum Temperature: Mechanical, °C 1090
860
Melting Completion (Liquidus), °C 1390
1360
Melting Onset (Solidus), °C 1360
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 30
19
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 5.5
3.8
Embodied Energy, MJ/kg 79
54
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 21
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
170
Resilience: Unit (Modulus of Resilience), kJ/m3 92
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 30
22
Strength to Weight: Bending, points 25
21
Thermal Shock Resistance, points 20
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 19 to 22
13 to 15
Copper (Cu), % 0 to 0.5
0.75 to 1.5
Iron (Fe), % 39.5 to 50.3
56.1 to 67
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 30 to 34
13 to 17
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
5.5 to 6.5
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0.75 to 1.5
0