Lecong Stainless is a trusted manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 347H Tubing that excels in high-temperature and corrosive settings. Renowned for its exceptional strength, stability, and durability, this tubing is a go-to choice for industries that demand reliable performance in extreme conditions. By strictly adhering to quality standards and offering competitive prices, Lecong Stainless guarantees that its Stainless Steel 347H Tubing meets international requirements. Their customer-centric approach, combined with a robust supply network, has established them as a preferred option for stainless steel tubing solutions both in Vietnam and abroad.
Stainless Steel 347H Tubing is a high-carbon variant of grade 347, enriched with chromium (17–19%), nickel (9–13%), and niobium (columbium) stabilizers. The higher carbon content boosts its creep strength and resistance to high temperatures. This tubing boasts a tensile strength of about 515 MPa, a yield strength of around 205 MPa, and an elongation of 40%. It offers remarkable resistance to intergranular corrosion and oxidation at temperatures up to 1500°F (816°C). The stabilized composition ensures dependable performance during extended thermal exposure, effectively preventing carbide precipitation. Its blend of toughness, durability, and stability makes Stainless Steel 347H Tubing perfect for demanding industrial applications that face high stress and heat.
| Specifications | ASTM A/ASME SA213/A249/A269/A312/A358 |
| Dimensions | ASTM, ASME, and API |
| Size | 1/8″NB TO 30″NB IN |
| 304 Pipes & Tubes Size | 1/2″ NB – 16″ NB |
| ERW 304 Pipes & Tubes | 1/2″ NB – 24″ NB |
| EFW 304 Pipes & Tubes | 6″ NB – 100″ NB |
| Thickness | 0.3mm – 50 mm |
| Specialized in | Large Diameter Size |
| Schedule | SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | Round, Square, Rectangular, Hydraulic, Oval, U Shape, Pan Cake Coils, Coiled Etc |
| Length | Single Random, Double Random & Required Length. |
| End | Plain End, Beveled End, Treaded |
| 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 |
Contact us to get a quick quote for your requirement.
We offers highest quality in its Stainless Steel 347H Tubing with severe testing and certification. Each product is thoroughly checked for dimensional measurements, mechanical tests, and corrosion resistance. Full certification including MTCs will be provided by us for your assurance that all the international standards and requirements are met.
This tubing comes in various sizes, typically ranging from 1/8″ to 12″ in diameter. It offers high resistance to oxidation and corrosion, particularly in high-temperature environments. Ideal for applications requiring robust strength and durability.
Available in diameters from 1/2″ to 12″, this tubing is welded and offers similar high-temperature strength as seamless options. It is highly resistant to intergranular corrosion and is used in environments exposed to sulfuric and nitric acids.
These tubes are generally available in sizes from 1/4″ to 2″ OD. They are specifically designed for high-efficiency heat transfer and offer excellent resistance to oxidation and sulfidation. Suitable for use in high-temperature heat exchangers.
Instrumentation tubing sizes typically range from 1/16″ to 1″. It is designed for precise and reliable measurements in harsh environments, providing excellent resistance to corrosion and high temperatures.
Available in diameters from 1/2″ to 5″, these tubes are designed to withstand high pressures and temperatures in boilers. They offer strong resistance to oxidation and carburization, making them ideal for high-temperature steam applications.
These tubes are usually sized from 1/2″ to 3″ in diameter and are formed into a U-shape for use in heat exchangers and other applications. They provide high resistance to corrosion and high-temperature deformation.
Condenser tubes come in sizes from 1/2″ to 3″ OD. They are designed for efficient heat transfer and resist corrosion from various coolants and environmental conditions, ensuring longevity in condenser systems.
You’ll find Stainless Steel 347H Tubing widely utilized in sectors like chemical processing, power generation, oil and gas, and refineries. It’s ideal for boiler tubes, heat exchangers, superheater tubes, and high-temperature steam piping. In aerospace and marine settings, it provides stability and corrosion resistance even in harsh environments. Additionally, it’s used in petrochemical plants, furnace components, and pressure vessels where exposure to extreme heat and corrosive substances is routine. Thanks to its outstanding thermal resistance and mechanical strength, Stainless Steel 347H Tubing promises a long service life.
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