17-4 PH Stainless Steel Sheet, Coil and Plate - AMS 5604, UNS S17400
17-4 PH steel is a grade of martensitic, precipitation-hardening stainless steel with the additions of chromium, nickel, and copper. 17-4 stainless steel is capable of attaining a wide range of strength and toughness properties depending on the precipitation or aging temperature used in hardening. It has a valuable combination of high strength, good corrosion resistance, and toughness in both base metals and welds. These properties give designers the ability to add reliability to their products while simplifying fabrication and often reducing their costs. High strength is maintained to approximately 600°F (316°C). This material has good resistance to stress corrosion cracking in the low strength conditions.
Type 17-4 PH (AMS 5604) is the most widely used of all precipitation-hardening steels. Compared to other PH alloys, it requires a simple heat treatment to produce a wide range of properties, including its high strength. It has a slightly higher ferrite content than other PH grades, making it a bit more magnetic. To improve formability, heat treatments may be used before cold working.
We are suppliers of 17-4 PH stainless steel sheet and coil, in addition to 17-4 PH round bar and plate. Our materials can be found in aerospace applications, gas turbines, chemical processing equipment, oil refining equipment, food processing industries and more.
17-4 PH Inventory Size Ranges
0.1875" - 2.500"
0.250" - 5.000"
Standard Inventory Specifications
- UNS S17400
- AMS 5604
- ASTM A 693
- ASME SA 693
Other industry standards we comply with:
- W.NR. 1.4542
- S1000 / S-SPEC-1
- GE Aviation S-SPEC-35 AeDMS S-400
- RR SABRe Edition 2
- DFARS Compliant
Common Trade Names
- 17-4 (® AK Steel)
- ATI 17-4 (™ Allegheny Technologies)
Common Applications of 17-4 PH
- Aerospace applications
- Base plates
- Chemical processing equipment
- Oil and petroleum refining equipment
- Nuclear components
- Food grade stainless steel for processing equipment
- General metalworking applications that call for precipitation-hardening stainless steel
17-4PH Physical Properties
- Melting Range: 2560-2625°F (1404-1440°C)
- Density: 0.2820 lb/in³
Electrical Resistivity (Annealed Condition)
- Microhm-cm: 98
Please contact us for more details. The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed. For a deeper understanding of the difference between 17-4 PH and 17-7 PH precipitation hardening alloys, request our white paper on the topic.