Import 304h Steel Pipe — Buy in Bulk from Supplier in China

The 304H steel pipe from Zhengzhou Huitong Pipe Fittings Co., Ltd. is a high-temperature austenitic stainless steel variant of 304, designed for elevated service conditions. It meets ASTM A312 TP304H standards, with a carbon content of 0.04 - 0.10% to improve creep resistance. The pipe is supplied in seamless or welded form, with outer diameters and wall thicknesses customisable to project specifications, and is commonly used in industries requiring resistance to oxidation and scaling at temperatures up to 800°C.

This grade retains the corrosion resistance of standard 304 but offers enhanced mechanical properties at high temperatures, making it suitable for boiler tubes, heat exchangers and steam pipelines. Typical industry standards for 304H include a tensile strength of 515 MPa minimum and yield strength of 205 MPa minimum, with elongation at break around 40% in standard conditions. The material is non-magnetic in the annealed state and maintains good weldability, though post-weld heat treatment may be required for thick sections to relieve stresses.

Primary applications include petroleum refining, chemical processing and power generation, where the pipe transports fluids under high thermal stress. Zhengzhou Huitong Pipe Fittings Co., Ltd. packs the material in hexagonal bundles secured with steel strips and plastic end caps, with a minimum order quantity of 5 metres. Delivery lead times range from 10 to 100 days depending on volume, with FOB Tianjin or Shanghai, CFR and CIF shipping options available. Buyers should confirm dimensional tolerances and surface finish requirements, as these are tailored to individual orders.

Zhengzhou Huitong Pipe Fittings Co., Ltd. is based at No.168, Guoji Road, Jinshui District, Zhengzhou, Henan Province, China. The company specialises in manufacturing and exporting a broad range of steel pipes, including carbon, stainless and alloy grades, catering to industries such as petroleum, chemical, power and water supply engineering. Its product portfolio spans ASTM, API and JIS standards, with capabilities to produce custom sizes and specifications as per client drawings.

The supplier operates with a focus on industrial piping solutions, offering flexible packaging and shipping options to accommodate bulk orders. While its trust tier is classified as harbor and response metrics are currently unavailable, the company provides clear trade terms, including L/C and T/T payment methods and FOB, CFR or CIF shipment arrangements from Tianjin or Shanghai ports. Buyers are advised to confirm production timelines and quality inspection protocols directly with the supplier.