Chanchai Stainless manufactures and supplies Stainless Steel 439 Bars in Bangkok, Thailand. They offer excellent performance and cost-effectiveness. As a titanium-stabilized ferritic stainless steel, grade 439 provides strong resistance to corrosion, oxidation, and scaling in moderate environments. These bars deliver reliable strength, good weldability, and long service life, making them suitable for structural and industrial use. Stainless Steel 439 Bars are appreciated for their durability and affordability, supporting industries that require corrosion-resistant materials without the higher costs of alloyed stainless steels. Chanchai Stainless ensures quality manufacturing, providing bars that meet international standards for various engineering and fabrication needs.
Stainless Steel 439 bars contain chromium (17–19%), titanium stabilizers, and low carbon (<0.08%). This ferritic structure offers tensile strength around 415 MPa, yield strength of 240 MPa, and elongation of 25–30%. Titanium prevents intergranular corrosion and improves weldability. These bars resist scaling and corrosion in moderately corrosive environments, providing good thermal stability. Mechanical properties ensure structural reliability while keeping costs manageable. Stainless Steel 439 combines weldability, toughness, and corrosion resistance, making it a smart choice for industrial use.
| 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 |
Contact us to get a quick quote for your requirement.
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.
Stainless Steel 439 bars are commonly used in automotive exhaust systems, mufflers, and catalytic converters because of their corrosion resistance at high temperatures. They are practical for industrial heat exchangers, air-conditioning systems, and agricultural equipment. Construction industries use them in architectural supports and frameworks where affordable corrosion resistance is needed. Food processing and water treatment plants benefit from their hygienic and durable qualities. Stainless Steel 439 bars provide reliable fastening and structural performance in various industries that need corrosion resistance, thermal stability, and economy.
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