Emilio Stainless, a top-notch manufacturer and supplier located in Manila, Philippines, specializes in high-quality Stainless Steel 347H Tubing, crafted for outstanding performance in both high-temperature and corrosive settings. This particular grade is a niobium-stabilized austenitic stainless steel with a higher carbon content, which boosts its creep strength and resistance to intergranular corrosion. SS 347H is perfect for situations where it faces continuous high temperatures, as it retains excellent mechanical properties and oxidation resistance. Emilio Stainless guarantees that each tube is precisely engineered, dimensionally accurate, and rigorously tested to meet international standards, catering to industries like petrochemical, refineries, power generation, and heat exchangers, where durability and reliability are paramount.
Stainless Steel 347H Tubing is made up of 17–19% chromium, 9–13% nickel, and niobium (columbium) for stabilization, with a carbon content that can go up to 0.10%. This specific blend enhances its resistance to sensitization and provides remarkable mechanical strength at elevated temperatures. The tubing boasts a tensile strength of about 515 MPa and a yield strength of around 205 MPa, along with impressive elongation. SS 347H maintains its structural integrity, oxidation resistance, and toughness even during extended thermal exposure, making it ideal for critical high-temperature operations and environments that experience repeated thermal cycling.
| 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.
Stainless Steel 347H Tubing finds its place in a variety of applications that require high-temperature strength and resistance to intergranular corrosion. You’ll commonly see it in heat exchangers, boiler tubes, superheaters, exhaust manifolds, and chemical process equipment. It’s also utilized in petroleum refineries, power plants, and gas processing units where resistance to oxidation and creep is crucial. Thanks to its excellent weldability and thermal stability, this tubing is also a great fit for the aerospace and marine industries.
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