Semih Metals is a manufacturer, distributor and supplier of SS 347 Hex Bars and rods, offering corrosion resistance comparable to SS 302 Hex Bars Our stainless steel 347 hex bars are made of columbium-strength austenitic steel without hard materials, comparable favorably to stainless steel 321 hex bars Good in oxidizing environments for general corrosion resistance and high performance. The stainless steel 347H hex bars are highly durable with columbium and tantalum to resist chromium carbide formation. This stabilizer increases their corrosion resistance in harsh oxidizing conditions, making them a reliable choice for harsh applications. SS 347 Hex Bars and rods have outstanding resistance to intergranular corrosion, even after exposure to the temperature of chromium carbide precipitation in the range of 800°F to 1500°F (427°C to 816°C).
SS 347 Hex Bars/Rods contain chromium (17-19%), nickel (9-13%), columbium, tantalum (stabilizer), and manganese, silicon and carbon in controlled amounts They have very low tensile strength of 515 MPa and a minimum yield strength of 205 MPa is provided, with a length of 40% at 50mm and there is a . These rods provide exceptional stability, even at cryogenic temperatures, and excellent resistance to oxidation and inter-granular corrosion. Their stability ensures longevity in high-temperature environments, making them ideal for the chemical, gas, aerospace and electrical industries.
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.
SS 347 hex bars are widely utilized in industries requiring superior corrosion resistance and high-temperature strength. Their primary applications include chemical and petrochemical processing, where they handle acetic, sulfuric, and phosphoric acids effectively. They are essential in heat exchangers, pressure vessels, and boiler components due to their resistance to intergranular corrosion. In the aerospace and automotive sectors, these bars are used for engine parts and exhaust systems. Additionally, they are employed in food processing, pharmaceutical equipment, and power generation for their durability and weldability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
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