Starc Metals, based in Canberra, Australia, stands out as a leading manufacturer and supplier of top-notch stainless steel products, with a particular focus on Stainless Steel 347H Forgings. Known for their precision engineering, durability, and exceptional corrosion resistance, Starc Metals consistently delivers products that align with international standards and meet customer needs. They serve a variety of industries, including petrochemical, power generation, aerospace, and marine sectors. Thanks to their advanced manufacturing techniques, rigorous quality assurance, and prompt delivery, Starc Metals guarantees that their Stainless Steel 347H Forgings offer remarkable performance, high-temperature strength, and a long service life, making them a trusted choice for demanding industrial and engineering applications throughout Australia.
Stainless Steel 347H Forgings are an austenitic stainless steel grade that’s stabilized with niobium, specifically designed to excel in high-temperature environments and resist intergranular corrosion. Their chemical makeup features 17–19% chromium, 9–13% nickel, and a higher carbon content of up to 0.10%, which boosts creep strength. These forgings showcase impressive mechanical properties, with tensile strength ranging from 515–750 MPa, yield strength around 205 MPa, and hardness reaching up to 200 HB. They maintain their structural integrity under thermal stress, providing excellent weldability, oxidation resistance, and toughness, even in high-temperature and corrosive industrial settings.
| 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. |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti | SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Yes, Stainless Steel 347H forgings can be used for potable water applications, offering excellent corrosion resistance and durability, particularly in high-temperature systems or environments with varying water quality.
Yes, Stainless Steel 347H forgings are highly suitable for high-temperature applications due to their niobium stabilization, which enhances resistance to oxidation, thermal stress, and intergranular corrosion at elevated temperatures.
Stainless Steel 347H Forgings find their place in applications that require strength, corrosion resistance, and stability at high temperatures. They are commonly used in components for heat exchangers, pressure vessels, furnace parts, chemical processing equipment, and boiler tubes. Their outstanding resistance to oxidation and intergranular corrosion makes them perfect for petrochemical plants, power generation facilities, and refineries. Additionally, they are utilized in the aerospace, marine, and gas processing industries, where high mechanical strength is essential.
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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