Neil Metals, Kolkata, India, is a well-known producer and supplier of **Stainless Steel 347 Square Bars/Rods**, providing top-notch products designed for performance in harsh conditions. Famous for accuracy and reliability, Neil Metals provides stainless steel solutions that conform to international standards and serve various industries. SS 347 square bars/rods are specifically created to be used for high-temperature and high-pressure applications, providing resistance against intergranular corrosion and oxidation. With advanced manufacturing facilities and customer satisfaction as a priority, Neil Metals has gained the confidence of customers from industry segments like chemical processing, power generation, aerospace, and others.
**Stainless Steel 347 Square Bars/Rods** are stabilized austenitic stainless steels with **17–19% Chromium**, **9–13% Nickel**, and **Columbium (Niobium)** for superior intergranular corrosion resistance after welding and exposure to high temperatures. Trace amounts of Manganese, Silicon, Phosphorus, and Sulfur are also included. These bars have **tensile strength of around 515 MPa**, **yield strength of 205 MPa**, and **elongation of 40%**. SS 347 maintains its strength and resistance to corrosion while in high-temperature service and has good weldability and formability, particularly for applications that are likely to undergo thermal cycling and sensitization.
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
Size : Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12
| 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. |
| 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 |
| SQUARES | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
**Stainless Steel 347 Square Bars/Rods** are used extensively in applications that require high-temperature resistance, stress resistance, and resistance to corrosive conditions. Typical applications are **boiler tubes, heat exchangers, furnace components, chemical process tanks, and exhaust systems**. These rods are particularly well-suited for **petrochemical facilities, refineries, aerospace components, and power units**, where repeated heating and cooling will not cause loss of structural properties. Their niobium stabilization provides integrity in welded parts and carbide precipitation prevention, thus being a preferred option for pressure vessels, flue gas systems, and other high-temperature and mechanical stress exposed critical equipment.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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