Kyaw Stainless, located in Naypyidaw, Myanmar, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 439 Pipes. With a keen emphasis on precision engineering and cutting-edge production methods, the company provides robust and corrosion-resistant piping solutions that cater to a wide range of industrial needs. Kyaw Stainless is committed to ensuring that every product adheres to international standards, delivering outstanding performance, reliability, and value. Their Stainless Steel 439 Pipes are well-known for their remarkable resistance to oxidation and stress corrosion cracking, making them perfect for both high-temperature and mildly corrosive environments across various industrial sectors.
These Stainless Steel 439 Pipes are mainly made up of iron, chromium (17–19%), and titanium, featuring a very low carbon content. The inclusion of titanium boosts stabilization and enhances resistance to intergranular corrosion. These pipes boast excellent mechanical strength, good formability, and impressive resistance to heat and oxidation. They have a tensile strength ranging from about 380–450 MPa, a yield strength of roughly 205 MPa, and favorable elongation properties, making them well-suited for forming and welding tasks in moderate to high-temperature settings.
| 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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Stainless Steel 439 Pipes find extensive application in automotive, construction, petrochemical, and power generation industries because of their high corrosion resistance and heat resistance. They are used in exhaust systems, heat exchangers, fuel system parts, and industrial piping where resistance to high-temperature oxidation is necessary. Stainless Steel 439 Pipes also find application in kitchen appliances, flue gas pipelines, and architectural uses where long-term durability is necessary. Their higher strength and weldability make them a first choice for manufacturing and engineering industries requiring cost-effective and high-performance piping solutions.
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.
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.
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.
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.
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.
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.
Stainless Steel 439 Pipes find extensive use in automotive exhaust systems, heat exchangers, and components of catalytic converters, thanks to their exceptional resistance to high-temperature oxidation. They are also perfect for applications in chemical processing, food processing, and power generation industries, where durability and corrosion resistance are essential. Furthermore, these pipes are utilized in architectural projects, furnace components, and tubing systems that demand excellent thermal stability and a long service life, ensuring optimal performance even under challenging operational conditions.
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