Stainless Steel 347H Tubing

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Stainless Steel 347H Tubing Manufacturer, Supplier and Exporter in Hamilton, New Zealand

Blundell Pipes and Tubes, located in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 347H Tubing. Renowned for its precision engineering and durability, the company crafts tubing that excels in resisting intergranular corrosion and performs exceptionally well at high temperatures. Thanks to cutting-edge manufacturing techniques and rigorous quality control, Blundell Pipes and Tubes guarantees that each product adheres to both national and international standards. Stainless Steel 347H Tubing is perfect for demanding industrial applications, such as petrochemical, power generation, aerospace, and chemical processing, providing long-lasting, heat-resistant, and corrosion-resistant solutions for critical systems.

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Stainless Steel 347H Tubing is a higher-carbon form of stabilized austenitic stainless steel grade 347, with 17–20% chromium, 9–13% nickel, and columbium (niobium) as a stabilizer against carbide precipitation. The higher carbon content up to 0.10% improves the creep strength and performance at long-term high-temperature service. It has tensile strength of 515–750 MPa and a yield strength of about 205 MPa. The tubing has a stable mechanical property up to 900°C temperature and shows good weldability, oxidation resistance, and thermal cycling structural stability.

Stainless Steel 347H Tubing Specification

Specifications : ASTM A213 / ASME SA213
Outside Diameter : 1/8″ OD TO 2″OD 3MM OD TO 38 MM OD
Thickness : 1MM TO 3 MM 0.028 TO 0.156 IN, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS
Size : 1/2″ NB – 24″ NB
Type : Seamless / Capillary Tubes
Form : Round Tubes, Square Tubes, Rectangular Tubes.
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
Finish : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn

Stainless Steel 347H Tubing Chemical Composition

SS 347H

0.04 – 0.10

2 max

1 max

0.045 max

0.030 max

17 – 19

0.10 max

9 – 12

4(C+N) – 0.70 max

Stainless Steel 347H Tubing Equivalent Grades

SS 347H

1.4961

S34709

SUS 347H

X12CrNiTi18-9

If You Are Looking To Buy High Quality

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

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Why Choose Stainless Steel 347H Tubing from Blundell Pipes and Tubes?

This tubing is made up of iron, chromium, nickel, and niobium, featuring a higher carbon content than standard 347 tubing to boost its strength at elevated temperatures. The addition of niobium stabilizes the steel, preventing the formation of chromium carbide and enhancing its resistance to intergranular corrosion. On a mechanical level, 347H tubing showcases impressive tensile and yield strength, toughness, and remarkable creep resistance when exposed to high temperatures. It also boasts excellent weldability, thermal stability, and oxidation resistance, making it ideal for applications that demand consistent durability under heat, pressure, and corrosive conditions.

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Largest Stainless Steel 347H Tubing Supplier in Hamilton, New Zealand

Blundell Pipes and Tubes, one of the largest suppliers of Stainless Steel 347H Tubing in Hamilton, New Zealand, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.

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Types of Stainless Steel 347H Tubing

Are Custom Sizes Available for Stainless Steel 347H Tubing?

Stainless Steel 347H Tubing finds its place in various industries that require heat-resistant and corrosion-resistant piping solutions. It’s commonly used in boilers, heat exchangers, superheaters, and chemical processing equipment. The petrochemical and power generation sectors depend on 347H tubing for steam lines, furnace components, and high-temperature process pipelines. Additionally, the aerospace and marine industries utilize it for structural components and high-temperature fluid transport. Its unique blend of mechanical strength, corrosion resistance, and thermal stability ensures it meets the rigorous demands of these critical applications.

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Stainless Steel 347H Tubing finds extensive use in applications related to continuous exposure to high pressure and heat, including superheaters, heat exchangers, furnace parts, chemical reactors, and piping systems under high temperature. It is best suited for power plants, refineries, and thermal processing facilities where stress rupture resistance and thermal fatigue resistance are essential. The high carbon concentration enables the tubing to maintain strength and dimensional stability in harsh service environments. Stainless Steel 347H Tubing is a reliable option for applications that need long service life, corrosion resistance, and mechanical integrity at high temperatures.