Isis Metals is a Manila, Philippines-based leading manufacturer, distributor, and supplier of Stainless Steel 347 Hex Bars and Rods due to their high strength and corrosion resistance. The bars are produced from columbium-stabilized austenitic steel, which possesses similar corrosion resistance to SS 302 and similar performance to SS 321 in oxidizing conditions. Developed to withstand precipitation of chromium carbide, SS 347 and 347H Hex Bars retain structural integrity and mechanical properties even at high temperatures. With increased durability, weldability, and high temperature resistance, Isis Metals provides unparalleled reliability and performance for critical industrial uses.
SS 347 Hex Bars and Rods contain 17–19% chromium, 9–13% nickel, and stabilizing alloys like columbium and tantalum, combined with controlled contents of manganese, silicon, and carbon. These additives increase resistance to intergranular corrosion and oxidation. The bars have a tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40% at 50mm, which provides superior ductility and formability. They provide excellent stability at cryogenic and elevated temperatures, which makes them suitable for applications needing higher strength, corrosion resistance, and long-term durability.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| 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 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
SS 347 Hex Bars are widely used in aerospace, chemical processing, and power generation for applications requiring high-temperature resistance, corrosion resistance, and strength. They outperform other grades due to their niobium stabilization, preventing carbide precipitation and ensuring durability.
SS 347 Hex Bars typically exhibit a tensile strength of 515-750 MPa, a yield strength of 205 MPa, and an elongation of 40% minimum. These properties ensure high durability, flexibility, and performance in demanding applications.
SS 347 Hex Bars commonly comply with standards like ASTM A276, ASTM A479, ASME SA479, and AMS 5646. These certifications ensure quality, dimensional accuracy, and performance for high-temperature and corrosion-resistant applications across industries, meeting stringent safety and reliability requirements.
Stainless Steel 347 Hex Bars and Rods are extensively utilized in applications requiring high-temperature strength and higher corrosion resistance. They are specifically suited to chemical and petrochemical plants, where they resist exposure to acetic, sulfuric, and phosphoric acids. These bars are widely utilized in boiler components, pressure vessels, and heat exchangers because they are resistant to intergranular corrosion. In the automotive industry and aerospace, they are used in exhaust systems, engine components, and manifolds. They are also applicable in food processing, power generation, pharmaceutical equipment, and other applications due to their weldability and durability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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