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Best quality Threaded Black Pipe - Seamless alloy tube – Zheyi

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As a way to present you with ease and enlarge our enterprise, we also have inspectors in QC Workforce and assure you our greatest support and solution for Mild Steel Hollow, Stainless Steel Chimney Pipe, Galvanized Rectangular Tube, We're prepared to present you with the most effective ideas over the designs of the orders in a qualified way for those who need. While in the meantime, we continue to keep on producing new technologies and building new designs so as to help make you ahead from the line of this small business.
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About seamless alloy tube

Alloy steel tubes are considered to have high chromium concentration and low carbon percentage. These magnetic alloy steel boiler tubes have key qualities including high ductility, corrosion resistance, and stress-related corrosion cracking resistance. Therefore, IBR-certified alloy steel tubes are commonly used in automotive, kitchenware and industrial equipment applications.

High alloy steel and low alloy steel are two types of alloy steel. Low-alloy steel tubes consist of pipes with alloying percentage less than 5%. The alloy content of high alloy steels varies from 5% to approximately 50%. Similar to most alloys, the working pressure capacity of alloy steel seamless tubes is about 20% higher than that of welded tubes. Therefore, it is reasonable to use seamless tubes in applications requiring higher working pressures. The cost is much higher than welded pipe, although it is stronger.

Alloy steel seamless tubes are used for applications requiring moderate corrosion resistance as well as good durability and low cost. High temperature alloy steel boiler tubes are typically used for applications with ambient temperatures up to 500°C. For example, when used on a drilling rig, hollow and thin-walled alloy steel drill pipes must be able to withstand the pressure differences that occur inside and outside of these alloy steel seamless pipes.

Stainless steel alloy tube production

ASME SA213 boiler tubes are seamless in production. These are suitable for pipes with large diameter sizes. The pipe wall thickness varies from 1mm to 200mm, and the length can reach 12m. The progress and pressure grade of alloy steel seamless tubes are also varied. Diameter, wall thickness, and schedule determine the pressure capacity of a pipe. As ONE OF THE LEADING ALLOY STEEL PIPE SUPPLIERS, WE OFFER STANDARD, SCH40 AND SCH80 SCHEDULE PIPES. ASTM A213 tubes are available in different forms such as round, square, rectangular and hydraulic. Tube lengths are also measured for single random, double random, and custom cut fixed length tube sizes. Alloy steel round tubes may have flat or threaded ends, depending on application requirements. Beveled ends are also available. Applications requiring structural strength use alloy steel square tubes. The material consists of carbon, manganese, phosphorus, sulfur, silicon and 1% chromium and molybdenum. This material composition is responsible for the minimum yield strength of 205MPa and the minimum tensile strength of 41 5MPa. SA213 boiler tubes are used in condensers, heat exchangers, boilers and components to withstand high temperatures and pressures.

Mechanical properties of galvanized steel pipe,Cleaning method

1. the first use of solvent cleaning steel surface, the surface of the organic matter removal,

2. then use tools to remove rust (wire brush), remove loose or tilt scale, rust, welding slag, etc.,

3. the use of pickling.

Galvanized is divided into hot plating and cold plating, hot plating is not easy to rust, cold plating is easy to rust.

Other correlations of alloy tubes

Properties of alloy tubes

Our alloy steel tubes are resistant to corrosion, heat and oxidation, and can withstand reducing or neutral atmospheres and oxidation. These alloy steel square tubes are also used in the chemical processing industry for distilling tanks, muffle furnaces, catalyst support grids, furnace baffles, pyrolysis operation pipes and flash dryer assemblies.

Packing of alloy tubes

Alloy steel seamless tubes may be exposed or coated and have sealing ends. Tubes of up to 3 “outside diameter will be supplied in bundles. To prevent rusting during shipping, bundles of alloy seamless steel tubes may be wrapped in polypropylene sheets and secured with flat steel strips. More than 3 “outside diameter will be loosely supplied.


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Best quality Threaded Black Pipe - Seamless alloy tube  – Zheyi detail pictures

Best quality Threaded Black Pipe - Seamless alloy tube  – Zheyi detail pictures

Best quality Threaded Black Pipe - Seamless alloy tube  – Zheyi detail pictures


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Our company puts emphasis on the management, the introduction of talented personnel, and the construction of staff building, trying hard to improve the quality and liability consciousness of staff members. Our company successfully attained IS9001 Certification and European CE Certification of Best quality Threaded Black Pipe - Seamless alloy tube – Zheyi , The product will supply to all over the world, such as: Naples, Comoros, Argentina, Our mission is "Provide Goods with Reliable Quality and Reasonable Prices". We welcome customers from every corner of the world to contact us for future business relationships and achieving mutual success!
  • This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By lucia from Borussia Dortmund - 2018.09.16 11:31
    We have been looking for a professional and responsible supplier, and now we find it.
    5 Stars By Edwina from Honduras - 2018.11.06 10:04