Dhruv Metals, located in Hyderabad, India, has earned a solid reputation as a reliable manufacturer and supplier of Stainless Steel 347 Rectangular Bars, designed to perform exceptionally well in high-temperature and corrosive settings. This type of stainless steel is niobium-stabilized and austenitic, which means it boasts impressive resistance to intergranular corrosion after welding, along with outstanding mechanical strength when faced with thermal stress. At Dhruv Metals, we take pride in crafting SS 347 rectangular bars with meticulous attention to detail, ensuring they adhere to global quality standards and are dependable for demanding sectors like aerospace, petrochemical, and thermal processing.
The composition of Stainless Steel 347 Rectangular Bars includes chromium (17.0–19.0%), nickel (9.0–13.0%), carbon (≤0.08%), and niobium (at least ten times the carbon content), along with trace amounts of manganese, silicon, phosphorus, and sulfur. These bars demonstrate a minimum tensile strength of 515 MPa, yield strength of 205 MPa, an elongation of 40%, and a Brinell hardness of up to 201 HB. The addition of niobium enhances resistance to chromium carbide precipitation, which in turn boosts the alloy’s weldability and performance in high-temperature applications.
| Grade | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Ni | Nb |
| 347 | 0.08 | 2.0 | 0.045 | 0.03 | 0.75 | 17.0-19.0 | 9.0-13.0 | 10*C-1.0 |
| Grade | Tensile, min, ksi[MPa] | Yield, min, ksi[MPa] | Elongation, %(min) | Hardness, HB（max） |
| 347 | 75【515】 | 30【205】 | 40 | 201 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| 347 | 1.4550 | S34700 | SUS347 | 08Ch18N12B | X6CrNiNb18-10 |
Yes, Stainless Steel 347 Rectangular Bars are designed to withstand high temperatures due to their excellent oxidation resistance and high-temperature strength. They are ideal for applications involving elevated temperatures, such as in aerospace and chemical processing.
Yes, Stainless Steel 347 Rectangular Bars are fully recyclable. Their high recyclability makes them an environmentally friendly option, as they can be reused without losing quality or performance.
The pressure rating of Stainless Steel 347 Rectangular Bars depends on factors such as size, thickness, and application. Generally, these bars are designed to withstand high pressure in demanding environments, but specific ratings should be confirmed based on the application's design codes and standards.
Stainless Steel 347 Rectangular Bars find their place in industries where high-temperature strength and corrosion resistance are paramount. Common uses include heat exchangers, boiler components, furnace parts, exhaust manifolds, and pressure piping in chemical plants and power generation facilities. These bars are particularly well-suited for welded structures and systems that undergo thermal cycling. Their ability to maintain strength and resist scaling at elevated temperatures makes SS 347 rectangular bars a fantastic option for structural and mechanical components operating under harsh conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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