Lecong Stainless stands out as a top manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 347H Pipes. These pipes are known for their impressive high-temperature strength, resistance to corrosion, and long-lasting durability. Made from titanium-stabilized austenitic stainless steel, Stainless Steel 347H is specifically engineered to avoid intergranular corrosion and to keep its mechanical integrity even when exposed to high temperatures for extended periods. Each pipe is meticulously crafted to meet international standards, making them perfect for essential piping systems in power generation, chemical processing, and various industrial applications. Lecong Stainless is committed to delivering consistent quality through advanced production techniques and rigorous quality control measures.
| International Specification | ASTM A312/ ASME SA 312 TP 347H |
| Seamless Pipes Size |
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| Welded Pipe Size |
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| EFW Pipe Size |
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| Wall Thickness | Schedule 5, Schedule 40, Schedule10, Schedule 80, Schedule 160, Schedule 80S, Schedule XXS, Schedule XS |
| techniques | EFW/ Seamless / ERW / Welded / LSAW/ Fabricated / Seam-Welded / CDW/ Redrawn |
| Form | Round, Square, Rectangular |
| Length | Double Random & Required Length End, Single Random, Plain End, Treaded, Beveled End |
| Condition | Hot Finished, Annealed and Pickled, Bright Annealed, Polished, Cold Drawn |
| Stainless Steel | Nickel | Magnesium | Silicon | sulfur | Carbon | Chromium | Phosphorus | Molybdenum | Nitrogen | |
| 347H | Minimum | 9 | 00.04 | 17 | 3 | |||||
| Maximum | 13 | 2 | 1 | 00.030 | 00.10 | 19 | 00.045 | 4 | ||
| SS Grade | Tensile Strength | Yield Strength | Elongation | Hardness | |
| Rockwell B | Brinell | ||||
| SS 347H | 515 | 205 | 40 | 92 | 201 |
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The composition of Stainless Steel 347H Pipes includes iron, chromium (17–19%), nickel (8–12%), and titanium for stabilization, along with manganese, silicon, and a carefully controlled carbon content. The titanium stabilization helps prevent carbide precipitation during welding, enhancing corrosion resistance and preserving tensile and creep strength at elevated temperatures. These pipes boast impressive mechanical properties, with a tensile strength ranging from 515 to 750 MPa and a yield strength between 205 and 275 MPa, along with outstanding resistance to oxidation and creep at temperatures reaching up to 700°C. Their austenitic structure ensures toughness, dimensional stability, and long-term reliability in challenging thermal and chemical environments.
Stainless Steel 347H Square Pipes provide excellent corrosion resistance and are ideal for structural applications. They typically come in sizes ranging from 1 inch to 6 inches, offering a high-strength option for various industrial and architectural needs.
SS 347H Seamless Pipes are known for their superior corrosion resistance and are suitable for high-temperature applications. They are available in sizes from 1/2 inch to 12 inches in diameter, ensuring durability under stress and high pressure.
Stainless Steel 347H ERW Pipes offer good corrosion resistance and are produced using electric resistance welding. They come in 1 inch to 24 inches, making them suitable for fluid transportation and structural support.
SS 347H LSAW Pipes feature excellent corrosion resistance and are used for high-pressure applications. Available in sizes ranging from 6 to 60 inches in diameter, they are ideal for large-scale industrial projects.
Stainless Steel 347H Round Pipes provide robust corrosion resistance and are versatile for various applications. Commonly available in sizes from 1/2 inch to 12 inches in diameter, they are suitable for both commercial and industrial uses.
Stainless Steel 347H Welded Pipes offer strong corrosion resistance and are manufactured by welding flat plates into cylindrical shapes. They are available in sizes from 1 inch to 24 inches and are suitable for a wide range of applications, including piping systems and structural components.
Lecong Stainless is a leading supplier, and stockist of high-quality Stainless Steel 347H Pipes in Da Nang, Vietnam. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
Stainless Steel 347H Pipes find extensive use in industries that demand piping solutions capable of withstanding high temperatures and corrosion. They are commonly utilized in boilers, heat exchangers, pressure vessels, and high-temperature piping systems. In the chemical and petrochemical sectors, these pipes are essential for reactor lines, process piping, and storage tanks that handle aggressive fluids. Their remarkable mechanical properties at elevated temperatures also make them ideal for applications in power generation, marine, and aerospace fields. Furthermore, Stainless Steel 347H Pipes are used in food processing, pharmaceutical equipment, and water treatment systems, where both high-temperature resilience and corrosion resistance are crucial.
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