Maduka Metals, a top-notch manufacturer and supplier located in Abuja, Nigeria, is well-known for its high-quality **Stainless Steel 347H Rectangular Bars**. These bars are crafted to deliver outstanding high-temperature strength, impressive corrosion resistance, and long-lasting durability, making them perfect for tough industrial applications. Using only the finest raw materials and cutting-edge technology, Maduka Metals guarantees precision, dimensional accuracy, and adherence to international quality standards. The 347H grade, which is a high-carbon variant of 347 stainless steel, boasts improved creep strength and superior resistance to intergranular corrosion, making it an excellent choice for high-temperature and high-pressure settings.
**Stainless Steel 347H Rectangular Bars** mainly consist of **iron**, with **17–19% chromium**, **9–13% nickel**, and **0.04–0.10% carbon**, along with the stabilizing element **niobium (columbium)**. This unique blend results in remarkable **tensile strength (515–700 MPa)**, outstanding **oxidation resistance**, and enhanced **creep and stress rupture properties**. The inclusion of niobium helps prevent carbide precipitation during extended heat exposure, ensuring reliable mechanical performance and structural integrity.
Stainless Steel Rectangular Bar Specification : ASTM A276 / A479, ASME SA276 / A479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
| Grade | C | Mn | Si | P | S | Cr | Ni | Ti |
| 347H | 0.04 – 0.10 | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 17.0 – 19.0 | 9.0-13.0 | 8 x C min. |
| (1.00 max.) |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347H | 1.4961 | S34709 |
To maintain Stainless Steel 347H Rectangular Bars, regularly clean them with a mild detergent and water to remove contaminants. Avoid exposure to harsh chemicals and ensure proper storage in dry, well-ventilated areas to prevent corrosion.
Yes, Stainless Steel 347H Rectangular Bars are fully recyclable. Their high-quality material allows for efficient reuse in manufacturing processes, contributing to sustainability and reducing environmental impact.
Stainless Steel 347H Rectangular Bars generally do not require corrosion protection coatings due to their inherent resistance to oxidation and corrosion. However, additional coatings may be used in highly aggressive environments for enhanced protection.
These **Stainless Steel 347H Rectangular Bars** find extensive use in **heat exchangers, boilers, furnace components, petrochemical equipment, and exhaust manifolds**, where high-temperature corrosion resistance is crucial. They are also well-suited for **refineries, power generation units, and aerospace applications**, where materials need to maintain their strength and stability under varying thermal conditions. These bars show excellent resistance to oxidation and scaling, performing reliably in environments up to **870°C**. The combination of high-temperature capability, strength, and corrosion resistance makes 347H stainless steel a go-to material for essential industrial and engineering applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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