UNS S17400 is a martensitic, chromium-nickel-copper precipitation-hardening stainless steel. UNS S17400 Stainless Steel Plate is capable of attaining a wide range of strength and toughness properties depending on the precipitation or aging temperature used in hardening. Its valuable combination of high strength, good corrosion resistance and toughness in both base metals and welds gives designers opportunities to add reliability to their products while simplifying fabrication and often reducing costs. High strength is maintained to approximately 600F (316C). UNS S17400 SS Plate has good resistance to stress corrosion cracking in the lower strength conditions.
Standard Inventory Specifications
Inventory Size Range
The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed
Element | Percent By Weight Type 17-4ph | |
C | Carbon | 0.07 maximum |
Mn | Manganese | 1.00 maximum |
P | Phosphorus | 0.04 maximum |
S | Sulfur | 0.03 maximum |
Si | Silicon | 1.00 maximum |
Cr | Chromium | 15.00 - 17.50 |
Ni | Nickel | 3.00 - 5.00 |
Cu | Copper | 3.00 - 5.00 |
Nb | Columbium | 0.15 - 0.45 |
Common Applications of UNS S17400 Stainless Steel Plates
Temperature Range | Coefficients | ||
C | F | m/mC | in/in/F106 |
21-93 | 70-200 | 10.8 | 6 |
21-204 | 70-400 | 10.8 | 6 |
21-316 | 70-600 | 11.2 | 6.2 |
21-427 | 70-800 | 11.2 | 6.3 |
Thermal Conductivity (H 900 Condition)
Temperature Range | W/mK | Btu/(hr/ft/in/F) | |
C | F | ||
149 | 300 | 17.9 | 124 |
260 | 500 | 19.5 | 135 |
460 | 860 | 22.5 | 156 |
482 | 900 | 22.6 | 157 |
Electrical Resistivity (Annealed Condition)
Mean Coefficient of Thermal Expansion (Annealed Condition)
Microhm-cm: 98
Mechanical Properties and Yield Strength UNS S 17400 Stainless Steel - Cold Flattened (Annealed)
DUPLEX STEEL & ENGINEERING COMPANY
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