Cold Drawn High Pressure Boiler Tube

Company profile

 

TIANJIN BO YI DA IMPORT AND EXPORT CO.,LTD is a modern production and exporting enterprise funded in 2014 with rich-full exporting experiences.

Our Product: ROOFING, BLACK PIPE, GALVANIZED PIPE, HOLLOW SECTION, GALVANIZED WIRE, STEEL COIL, etc have been exported to Africa: West Africa, East Africa, South east Asia: Philippines, Vietnam, Singapore, South America etc. Products are widely used in building and constructions.

We firmly believe in "Quality first, Service first" and to add value to our corporation. Looking forward win win business with global customers!

 

why choose our products

 

Cold-drawn high pressure boiler tube seamless tube is a cylindrical product that is made by drawing a solid metal billet through a piercing rod. The process involves cold drawing the seamless tubes through a die to reduce their diameter and wall thickness. Boiler tubes are often made of hot-rolled or cold-drawn tubes with a temperature below 350 °C. High-pressure boiler tubes are often used in high temperature and high pressure conditions. The cold drawing process increases the material's physical properties and offers tighter tolerances compared to hot-rolled products. The manufacturing process enhances the dimensional accuracy, surface finish, and mechanical properties of the tubes.

Cold drawn high-pressure boiler tubes are mainly made of carbon-structured steel hot-rolled tubes or cold-drawn tubes. The tubes will be oxidized and corroded under the action of high-temperature flue gas and water vapor. Heat treatment includes heating and cooling of the high-pressure boiler pipes which increases toughness, hardness and wear resistance. Generally, boiler tubes are made of hot-rolled or cold-drawn tubes with a temperature below 350 °C. 2) High-pressure boiler tubes are often used in high temperature and high pressure conditions, and the tubes will be oxidized and corroded under the action of high-temperature flue gas and water vapor.

The advantages of cold drawn forming speed, high yield, and does not damage the coating, can be cut in various forms of brittle cross-section to meet the needs of the use of conditions. Cold-drawn steel can have a great plastic deformation, thereby increasing the yield point of steel.

Drawn pipe shortcomings:
1. Although there is no thermoplastic compression in the forming process, residual stress still exists and the steel will inevitably impact on the overall and local buckling characteristics of the section.
2. Cold-drawn steel forming generally open cross-section, low torsional stiffness of the free cross-section shape. When the bending is prone to twisting, bending and twisting, the pressure is easy to buckle, the torsion performance is poor.
Third, cold-rolled steel wall thickness at the corner of the panel smaller, and no thick, concentrated carrying capacity to resist local weakness.

High-pressure boiler tubes are critical components in power plants, refineries, and industrial heating systems. Cold-drawn (CD) boiler tubes offer superior precision, strength, and performance compared to hot-finished alternatives.

Advantages vs. Hot-Finished Boiler Tubes

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