Sadiki Metals, based in Kinshasa, Congo, has earned a solid reputation as a reliable manufacturer and supplier of high-performance Stainless Steel 17-4 PH Forgings. The company focuses on crafting precision-engineered forgings that adhere to international standards for strength, durability, and resistance to corrosion. By utilizing cutting-edge manufacturing techniques and top-notch raw materials, Sadiki Metals provides products that can withstand even the toughest industrial conditions. Stainless Steel 17-4 PH Forgings are prized for their outstanding mechanical properties, ease of fabrication, and exceptional resistance to stress corrosion cracking, making them a go-to choice for industries like aerospace, petrochemical, marine, and power generation, both in Congo and around the world.
These forgings are made up of iron, 15–17.5% chromium, 3–5% nickel, 3–5% copper, along with trace amounts of niobium and columbium for precipitation hardening. This distinctive blend results in high strength, hardness, and remarkable corrosion resistance. After undergoing heat treatment, the alloy can reach tensile strengths of up to 1310 MPa and yield strengths around 1170 MPa. It also boasts good toughness and fatigue resistance, ensuring mechanical stability in both high and low-temperature settings. Plus, it offers excellent machinability and weldability compared to other high-strength stainless steels.
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.
Sadiki Metals’ Stainless Steel 17-4 PH Forgings find extensive applications in industries that require strength, corrosion resistance, and reliability in extreme conditions. In the aerospace sector, they are utilized for turbine components, shafts, and structural parts. The petrochemical and marine industries rely on them for valve bodies, pump shafts, and fasteners that face corrosive or high-pressure environments. Additionally, they are used in power generation, nuclear, and paper industries for components that need high wear resistance and dimensional stability. Their versatility and long service life make them perfect for critical engineering and precision applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sadiki Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kinshasa, Congo
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