Chung Metal provides tough Stainless Steel 347H Rectangular Bars, a high-carbon variant of SS 347 with enhanced creep resistance and high-temperature service. SS 347H offers good performance in pressure vessels and welded parts subjected to thermal stress and cyclic heating. The rectangular shape is well suited for structural bases, support structures, and heat-resistant plates. Chung Metal provides accurate manufacturing, clean cut-offs, and uniform thickness in every 347H rectangular bar, making it a reliable option for high-temperature industry purposes like power generation, refineries, and chemical plants.
SS 347H has 17–19% chromium, 9–13% nickel, and 0.04–0.10% carbon content, stabilized with niobium. It provides tensile strength of 550–750 MPa, yield strength approximately 200–300 MPa, and elongation up to 40%. Weldable and non-magnetic, it resists temperatures of up to 900°C. The greater carbon content enhances the creep strength during extended heat exposure. The rectangular shape has structural rigidity and is suitable for fabrication as thermal barriers and welded plates. Chung Metal offers these bars in heat-treated and annealed conditions.
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.
347H rectangular bars are applied in boiler tubes, superheaters, furnace parts, welded piping systems, and exhaust systems. The corrosion resistance and thermal strength of 347H bars make them suitable for chemical plants, petroleum refineries, and power boilers. The square shape lends suitability to load-bearing frames, welded wall panels, and machinery bases that are subjected to thermal stress. SS 347H operates effectively in cyclic heating and long-term pressure. Chung Metal provides customized bars for application in structural and high-temperature industrial applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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