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S17400 Stainless Steel vs. N08366 Stainless Steel

Both S17400 stainless steel and N08366 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is N08366 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
180
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11 to 21
34
Fatigue Strength, MPa 380 to 670
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
80
Shear Strength, MPa 570 to 830
390
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
590
Tensile Strength: Yield (Proof), MPa 580 to 1250
240

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 450
430
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 14
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.7
6.2
Embodied Energy, MJ/kg 39
84
Embodied Water, L/kg 130
200

Common Calculations

PREN (Pitting Resistance) 16
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
160
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 49
20
Strength to Weight: Bending, points 27 to 35
19
Thermal Diffusivity, mm2/s 4.5
3.4
Thermal Shock Resistance, points 30 to 46
13

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.035
Chromium (Cr), % 15 to 17
20 to 22
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
42.4 to 50.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 3.0 to 5.0
23.5 to 25.5
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030