Kyaw Stainless, a reputable manufacturer and supplier located in Naypyidaw, Myanmar, proudly offers top-notch Stainless Steel 309H Pipes that are designed to perform exceptionally well in high-temperature and corrosive environments. These pipes are meticulously engineered and produced using cutting-edge techniques to ensure they meet global standards for performance and durability. Renowned for their outstanding resistance to oxidation and scaling, Kyaw Stainless 309H Pipes are perfect for applications that involve continuous exposure to elevated temperatures. The company caters to vital industries such as petrochemical, power generation, furnace manufacturing, and chemical processing, providing reliable stainless steel piping solutions that guarantee strength and longevity even in the toughest conditions.
Stainless Steel 309H Pipes are made from a chromium-nickel austenitic alloy, featuring around 23% chromium and 13% nickel, along with a higher carbon content compared to the 309 and 309S grades. This elevated carbon level boosts their high-temperature strength and creep resistance. Mechanically, these pipes deliver impressive tensile and yield strength, exceptional oxidation resistance, and stability when exposed to heat for extended periods. Their sturdy composition and mechanical reliability make them perfect for high-stress and thermal applications.
| Thickness | 0.5mm-100mm | ||||||
| Outer diameter | 10mm, 25.4mm, 38.1mm, 50.8mm, 100mm, 250mm, 300mm, 350mm, etc | ||||||
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc | ||||||
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc | ||||||
| Finish | Hot rolled (HR), Cold rolled Tube (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) | ||||||
| Form | Round tube Square tube Rectangular tube etc. | ||||||
Grade | Ni | Mn | P | C | S | Si | Cr | Mo | N | |
309H | min. | 8.0 | – | – | – | – | – | 18.0 | – | – |
max. | 10.5 | 2.0 | 0.045 | 0.08 | 0.030 | 0.75 | 20.0 | |||
Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
309H | 515 | 40 | 205 | 92 | 201 |
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Stainless Steel 309H Pipes are widely used in high-temperature and high-pressure environments due to their superior heat resistance and mechanical strength. They are commonly found in heat exchangers, boilers, furnaces, and refractory equipment, making them essential in industries such as power generation, petrochemicals, and thermal processing. These pipes are also used in burner assemblies, exhaust systems, annealing covers, and catalytic recovery systems. Their excellent oxidation resistance and durability make them ideal for chemical plants, incinerators, and food processing industries, ensuring reliable performance in extreme conditions where strength and corrosion resistance are crucial.
Square-shaped pipes made from 309H stainless steel, offering high-temperature resistance, durability, and corrosion resistance, ideal for structural and high-heat applications.
Pipes made from 309H stainless steel without welded seams, providing superior strength, high-temperature resistance, and excellent durability for demanding industrial and high-heat applications.
Electric resistance welded pipes made from 309H stainless steel, known for high-temperature resistance and durability, used in various industrial and heat-intensive applications.
Longitudinally submerged arc welded pipes made from 309H stainless steel, offering high heat resistance and strength, suitable for high-pressure and high-temperature industrial applications.
Cylindrical pipes made from 309H stainless steel, providing excellent heat resistance, durability, and corrosion resistance, ideal for high-temperature and industrial applications.
309H stainless steel, joined by welding. They offer high-temperature resistance, durability, and strength, suitable for various industrial and high-heat applications.
These Stainless Steel 309H Pipes find extensive use in industries that operate under extreme heat and oxidizing conditions. They are well-suited for furnaces, kilns, heat exchangers, and boiler components. In petrochemical plants and refineries, they are utilized in systems that encounter hot gases and corrosive substances. Additionally, these pipes are ideal for thermal processing, power generation, and marine applications. With excellent weldability, formability, and resistance to scaling up to 1100°C, Stainless Steel 309H Pipes are the go-to choice for high-temperature piping systems that demand long-lasting durability and outstanding performance.







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