Starc Metals is a leading manufacturer and supplier located in Canberra, Australia, with a focus on high-quality Stainless Steel 17-4PH Forgings. Known for their precision engineering and advanced manufacturing techniques, Starc Metals adheres to strict quality standards, ensuring that their stainless steel forgings meet international specifications and perform reliably in tough industrial settings. They cater to various sectors, including aerospace, chemical, petrochemical, automotive, and marine, providing products that are celebrated for their exceptional strength, corrosion resistance, and durability. With a commitment to innovation and customer satisfaction, Starc Metals has built a strong reputation for excellence, offering 17-4PH forgings that guarantee long-lasting performance and structural reliability.
Stainless Steel 17-4PH Forgings are a type of precipitation-hardening stainless steel, made up of about 17% chromium, 4% nickel, along with copper, niobium, and iron as the balance. These forgings boast impressive tensile strength (1,000–1,300 MPa), a minimum yield strength of 850 MPa, and an elongation of 10–15%. The alloy is known for its excellent corrosion resistance, toughness, and stability at high temperatures. Its outstanding fatigue and wear resistance make it perfect for critical applications where both mechanical performance and durability are crucial.
Specifications ASTM B564 / ASME SB564 AMS 5644
Flat bar blocks up to 27″ width and 15,000 lbs.
Cylinders and sleeves up to 50″ maximum O.D. and 65″ maximum length
Discs and hubs up to 50″ diameter and 20,000 lbs.
Rolled, hand forged or mandrel forged rings up to 84″ maximum O.D. and 40″ maximum length
Rounds, shafts and step shafts up to 144″ maximum length and 20,000 lbs.
| Grade | C | Ni | Si | S | Mn | P | Cr | Cu | |
| SS 17-4 PH | min. | – | 3.0 | – | – | – | – | 15.00 | 3.0 |
| max. | 0.07 | 5.0 | 1.00 | 0.03 | 1.0 | 0.04 | 17.5 | 5.0 | |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Hardness |
| 17-4 PH | 135 | 16 | 105 | 277 |
| STANDARD | UNS | WERKSTOFF NR. |
| 17-4 PH | S17400 | 1.4542 |
The ideal temperature range for forging Stainless Steel 17-4PH is 1850°F to 2050°F (1010°C to 1120°C). Post-forging, annealing or solution treating is necessary to achieve optimal properties.
Yes, Stainless Steel 17-4PH forgings can be forged into custom shapes. This alloy offers excellent strength, corrosion resistance, and machinability, making it suitable for precision custom forging applications.
The forging process for Stainless Steel 17-4PH typically takes several hours, including heating, shaping, and cooling. The exact duration depends on part size, complexity, and specific forging techniques used.
You’ll find Stainless Steel 17-4PH Forgings widely used in industries that demand high strength, hardness, and corrosion resistance. Common applications include aerospace components, shafts, fasteners, valves, and essential structural parts. Their remarkable fatigue and wear resistance also make them suitable for automotive, chemical, and petrochemical machinery. Additionally, they are utilized in marine equipment, pressure vessels, and industrial machinery. The alloy’s ability to maintain its mechanical properties after heat treatment, along with its corrosion resistance, makes 17-4PH Forgings an excellent choice for high-performance applications that require reliability, long-term durability, and structural integrity.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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