MERIH STAINLESS, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of Stainless Steel 439 bars. They deliver high-quality solutions for industries that need materials with excellent corrosion resistance, durability, and heat tolerance. Thanks to their advanced manufacturing techniques and strict quality control, the company guarantees that every bar meets international standards for mechanical performance, precision, and long-lasting reliability. The Stainless Steel 439 bars from MERIH STAINLESS are specifically designed for tough environments, providing outstanding resistance to oxidation, scaling, and stress corrosion cracking. Available in various sizes and specifications, these bars are trusted in sectors like power generation, automotive, chemical, and industrial applications.
Stainless Steel 439 bars are ferritic stainless steel alloys primarily made of iron and chromium, with small amounts of titanium and niobium added to boost stability and corrosion resistance. With a chromium content of around 17–19%, these bars excel in resisting oxidation, scaling, and thermal fatigue. They also demonstrate good tensile strength, hardness, and dimensional stability even at high temperatures. The ferritic structure gives them magnetic properties and stability under thermal stress, making Stainless Steel 439 bars a great fit for high-temperature and aggressive industrial settings.
| Standard | ASTM A276, ASTM A479 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Material Grade | Stainless Steel 439 (UNS S43035) |
| Stainless Steel 439 Bright Bars | Outside Diameter in the range of 4mm to 500mm |
| Stainless Steel 439 Bright Bars | Outside Diameter in the range of 4mm to 100mm |
| Stainless Steel 439 Hex Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| Stainless Steel 439 Square Bars | 18mm – 47mm (11/16″ to 1-3/4″) |
| Stainless Steel 439 Flats | 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Grade | C | Si | Mn | P | S | Cr | Ti |
| 439 | 0.070 | 1.00 | 1.00 | 0.040 | 0.030 | 17.00~19.00 | ≥ 0.20+4(C+N)min – 0.50 max |
| Tensile strength | Yiled strength | Elongation | Hardness |
| 455 | 290 | 34 | 78 HB |
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We ensures that all stainless steel 439 panels are rigorously tested to meet the highest standards. Each bar is mechanically, chemically and structurally analyzed. The company offers a range of relevant certifications, including Mill Test Certificates (MTC), to ensure compliance with international standards for durability, efficiency and reliability
439 round bars provide excellent corrosion resistance and high-temperature stability, ideal for automotive exhaust systems, industrial heat exchangers, and furnace components, ensuring durability in harsh environments.
439 flat bars offer good oxidation resistance and mechanical properties, suitable for applications in water heaters, heat exchangers, and structural components in construction exposed to corrosive conditions.
439 square bars are used in automotive and industrial applications, providing excellent corrosion resistance and stability, ideal for making structural components and fittings exposed to high temperatures.
439 rectangular bars deliver strong corrosion resistance and high-temperature performance, perfect for heat exchangers, furnace parts, and structural components in various industrial and construction applications.
439 hexagonal bars offer excellent resistance to oxidation and stress corrosion cracking, ideal for fasteners, fittings, and components in automotive and industrial environments requiring high durability.
439 T-bars provide good corrosion and heat resistance, suitable for structural support in construction and industrial applications, ensuring long-lasting performance in challenging environments.
These bars are widely utilized in industries that require both heat and corrosion resistance along with mechanical reliability. They’re perfect for automotive exhaust systems, heat exchangers, furnace parts, and boiler components. Moreover, they find applications in power plants, chemical processing, and industrial equipment that face high temperatures and corrosive environments. Their durability and resistance to scaling help minimize maintenance needs and extend service life. Stainless Steel 439 bars ensure dependable performance, efficiency, and safety in demanding industrial and engineering applications.
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