Starc Metals is a reputable manufacturer and supplier located in Canberra, Australia, with a focus on high-quality Stainless Steel 347 Flat Bars. Renowned for their precision, durability, and reliability, this company consistently delivers products that align with international standards and meet customer expectations. They cater to various industries, including chemical processing, aerospace, power generation, and marine, offering customized stainless steel solutions for demanding applications. Thanks to their advanced manufacturing techniques, strict quality control, and prompt delivery, every 347 stainless steel flat bar from Starc Metals guarantees exceptional corrosion resistance, heat resistance, and mechanical performance, making them a top choice for industrial and engineering needs across Australia and beyond.
Stainless Steel 347 Flat Bars are a stabilized austenitic stainless steel that contains about 17% chromium, 9% nickel, and small amounts of columbium (niobium) to boost resistance to intergranular corrosion. This unique composition provides remarkable strength at high temperatures, good toughness, and improved resistance to oxidation and stress corrosion cracking. With a tensile strength ranging from approximately 515 to 750 MPa and solid ductility, 347 stainless steel flat bars maintain their shape even under thermal stress. Their excellent weldability and formability make them perfect for a variety of structural and high-temperature applications where durability and reliability are crucial.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Range : Range – 3.17mm to 350mm dia
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 347 | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-13.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| SS 347H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347 | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347 | 1.4961 | S34700 |
| SS 347H | 1.4550 | S34709 |
The primary alloying element in Stainless Steel 347 is niobium (Nb), which stabilizes the material against carbide precipitation during welding and high-temperature exposure. This enhances its resistance to intergranular corrosion and improves its overall high-temperature strength.
Stainless Steel 347 is most suitable for applications in the temperature range of 800°C to 1500°F (427°C to 815°C). This range allows it to maintain its strength, corrosion resistance, and stability, particularly in high-temperature environments like furnaces.
Typical dimensions of a Stainless Steel 347 flat bar range from 0.25 inches (6 mm) to 6 inches (150 mm) in thickness and 1 inch (25 mm) to 12 inches (300 mm) in width. Custom sizes are also available.
These Stainless Steel 347 Flat Bars are extensively utilized in industries that demand high corrosion and heat resistance. They are particularly well-suited for chemical and petrochemical processing equipment, heat exchangers, furnace components, and boilers. Their ability to retain strength and resist oxidation at elevated temperatures makes them ideal for aerospace, power generation, and marine applications. Furthermore, 347 flat bars are also used in structural components, automotive parts, and machinery that face high stress or thermal cycling. The blend of toughness, durability, and reliability ensures they meet the rigorous demands of various applications.
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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