Dhruv Metals, based in Hyderabad, India, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 347 Round Bars and Rods. These austenitic stainless steel products are stabilized with niobium (also known as columbium), which gives them remarkable resistance to intergranular corrosion and boosts their performance in high-temperature settings. Stainless Steel 347 is perfect for applications that demand strong mechanical properties, excellent weldability, and resistance to oxidation. At Dhruv Metals, we take pride in ensuring that every SS 347 round bar and rod is meticulously engineered to meet international standards for durability, reliability, and performance in challenging industries.
The composition of Stainless Steel 347 Round Bars and Rods includes chromium (17–19%), nickel (9–13%), carbon (≤0.08%), and niobium (at least 10 times the carbon content), along with controlled amounts of manganese, silicon, phosphorus, and sulfur. These rods boast a minimum tensile strength of 515 MPa, a yield strength of 205 MPa, an elongation of 40%, and a maximum Brinell hardness of 201 HB. The niobium stabilization plays a crucial role in preventing carbide precipitation during welding, ensuring outstanding thermal stability, creep resistance, and corrosion protection in high-temperature environments.
| 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 |
Stainless Steel 347 Round Bars and Rods find extensive use in high-temperature and highly corrosive settings, such as power generation, petrochemical processing, oil refineries, and aerospace applications. They are particularly well-suited for boiler tubes, heat exchangers, pressure vessels, exhaust systems, and welded piping components. SS 347 is especially advantageous for situations that involve frequent temperature changes or continuous heat exposure. Its exceptional resistance to intergranular corrosion post-welding and its ability to maintain mechanical properties under thermal stress make it a dependable choice for critical components in demanding service 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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