Chanchai Stainless is one of the top manufacturers and exporters of superior quality stainless steel products in Bangkok, Thailand. Our commitment to quality and accuracy in engineering makes us deliver robust stainless steel solutions that are of international standard. One of our specialty products is Stainless Steel 347H Tubing, which is known for its superior resistance to heat, corrosion, and intergranular attack. Perfect for applications in industries like aerospace, chemical processing, and power generation, this tubing provides long-term performance in harsh conditions. Chanchai Stainless makes every effort to deliver reliability, durability, and customer satisfaction in numerous industrial applications.
Stainless Steel 347H is an elevated carbon form of grade 347, stabilized with tantalum and niobium for greater resistance to intergranular corrosion in high-temperature applications. Its composition generally has 17–19% Chromium, 9–13% Nickel, 0.04–0.10% Carbon, with trace amounts for greater stability. It offers excellent oxidation resistance, excellent creep strength, and stress rupture characteristics, so it is dependable in harsh environments. Mechanical properties comprise tensile strength of approximately 515 MPa, yield strength of 205 MPa, and elongation of 40%. These properties ensure robustness, heat resistance, and strength at structure for high-temperature industrial applications.
| 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 is widely sought after in applications that demand stability and durability under high heat and corrosive environments. It has widespread use in petrochemical, pharmaceutical, aerospace, and power generation applications because of its capability to resist oxidation and scaling under high temperatures. Its common uses are in heat exchangers, boilers, condensers, furnace parts, and air filters. Its resistance to intergranular corrosion makes it ideally used in the process of welding and fabrication. Through superior performance in extreme operating conditions, Stainless Steel 347H Tubing guarantees reliability, efficiency, and safety, thereby being a highly sought-after tubing for its use in critical, high-temperature industrial applications.
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