Lecong Stainless, a well-respected manufacturer and supplier based in Da Nang, Vietnam, specializes in top-notch Stainless Steel 439 Pipes that are built to offer exceptional strength, durability, and corrosion resistance. As part of the ferritic stainless steel family, SS 439 is enhanced with titanium, which boosts its weldability, toughness, and resistance to intergranular corrosion. Thanks to its impressive resistance to oxidation and chloride-induced stress corrosion cracking, Stainless Steel 439 Pipes find their place in high-temperature, corrosive, and structural applications. Lecong Stainless is committed to ensuring that each pipe meets international standards, providing customers with dependable solutions for lasting performance in both industrial and commercial settings.
These Stainless Steel 439 Pipes contain 17–19% chromium, with titanium added for stabilization, and feature low carbon content to enhance weldability and toughness. Their ferritic structure improves corrosion resistance in chloride-rich environments while also offering excellent thermal conductivity and resistance to scaling at high temperatures. On the mechanical side, SS 439 pipes deliver good tensile strength, ductility, and stability during thermal cycling, making them highly effective for elevated temperature applications. Their chemical makeup guarantees durability and reliability, even in tough industrial conditions.
| Specifications | ASTM A/ASME SA268/A731 CL |
| Dimensions | ASTM, ASME and API |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Wall Thickness | Sch 5s, 10s, 40s, 80s, 160, XXS |
| Size – Seamless 439 Pipes | 1/2″NB – 24″NB |
| ERW 439 Pipes | 1/2″ NB – 24″ NB |
| EFW 439 Pipes | 6″ NB – 100″ NB |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Types | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| End | Plain End, Beveled End, Treaded |
| Length | Single Random, Double Random & Cut Length. (Custom Sizes Available as per customers requirement) |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | CU | |
| 439 | Min | – | – | – | – | – | 12.0 | – | – | – |
| max | 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 14.0 | – | – | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 439 | 95,000 | 50,000 | 25 | – | 175 |
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We ensures the highest quality standards for Stainless Steel 439 Pipes through rigorous testing and certification processes. Every pipe goes through extensive tests, including chemical analysis, mechanical testing, and dimensional inspection. In this regard, we provide suitable certificates like Mill Test Certificate (MTC) and ISO certifications to make sure every product stands as a reliable brand and follows the market norms.
Stainless Steel 439 Square Pipes offer excellent corrosion resistance and are used in applications requiring a robust structure. They typically come in sizes ranging from 1/2″ to 8″, with wall thicknesses varying based on the application.
These pipes offer superior corrosion resistance and are used in high-temperature environments. They are available in sizes from 1/4″ to 12″ in diameter, with wall thicknesses ranging from 0.5mm to 20mm.
Providing good corrosion resistance, these pipes are manufactured using the electric resistance welding process. They are available in sizes from 1″ to 12″ in diameter, with various wall thicknesses for different pressure ratings.
These pipes, known for their corrosion resistance, are produced by longitudinal submerged arc welding. Sizes typically range from 6″ to 48″ in diameter, with wall thicknesses from 5mm to 25mm.
Offering excellent corrosion resistance, these pipes are used in various industries. They come in sizes from 1/4″ to 12″ in diameter, with wall thicknesses ranging from 1mm to 15mm.
These pipes exhibit good corrosion resistance and are made by welding flat plates. They are available from 1″ to 24″ in diameter, with wall thicknesses tailored to specific pressure and temperature requirements.
You’ll find Stainless Steel 439 Pipes commonly used in exhaust systems, heat exchangers, and automotive components, thanks to their outstanding heat and corrosion resistance. They’re also utilized in petrochemical plants, power generation facilities, and structural projects where strength and durability are crucial. In the construction industry, SS 439 pipes are favored for roofing, cladding, and interior applications due to their stability and ease of fabrication. Their ability to resist scaling, cracking, and stress corrosion makes them a fantastic choice for long-term use in demanding environments.
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