Stainless Steel 347 Forgings are a stabilized austenitic stainless steel primarily made up of iron, chromium (17–19%), nickel (9–13%), carbon (0.04–0.10%), and niobium/tantalum as stabilizers. This unique composition offers excellent high-temperature strength, corrosion resistance, and creep resistance. The material boasts a tensile strength of around 515–620 MPa, yield strength of 205–275 MPa, and impressive toughness. Its ferrite-free austenitic structure ensures stability at elevated temperatures and prevents carbide precipitation along grain boundaries, making it ideal for critical applications where long-term durability and mechanical reliability are a must.
| Standard | ASTM A182, ASME SA182 |
| Specification | DIN, ASTM, BS and all International Standards |
| 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. |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
Stainless Steel 347 forgings have limitations in extreme temperatures above 1600°F (870°C), susceptibility to stress corrosion cracking in chloride environments, and reduced formability compared to some other stainless steel grades.
The forging temperature range for Stainless Steel 347 is typically between 2100°F (1149°C) and 2200°F (1204°C). It ensures optimal grain structure and mechanical properties for high-performance applications.
Stainless Steel 347 forgings require minimal maintenance, primarily periodic cleaning to remove contaminants. Regular inspection for corrosion or wear is recommended, along with ensuring proper lubrication for moving parts in harsh environments.
Stainless Steel 347 Forgings find extensive use in applications that demand high strength, thermal stability, and corrosion resistance. They’re commonly found in furnace parts, heat exchangers, boiler components, chemical processing equipment, and petrochemical plants. This alloy is also well-suited for aerospace, power generation, and industrial machinery components where high-temperature performance and mechanical reliability are crucial. Additionally, Stainless Steel 347 Forgings are utilized in piping systems, pressure vessels, and various other applications where durability is key.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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