Austria-based voestalpine Tubulars GmbH & Co. successfully commissioned a new heat-treatment line supplied by SMS group. Designed for seamless tubes with outside diameters between 60.3 and 273 mm (2.4 and 10.7 inches), it can process steel grades with alloying contents of up to approximately 20%. The line consists of a walking-beam-type austenitizing furnace, an SMS quenching head, a cooling table for normalizing, a tempering furnace, a cooling bed and two sawing stations for sample cutting. This equipment allows voestalpine Tubulars to perform heat treatments such as quenching, tempering and normalizing.
With a maximum capacity of 25 tons per hour, the line can handle tubes with wall thicknesses up to 25 mm (1 inch). The use of extremely low-NOx recuperator burners in the furnaces saves up to 5% of fuel compared to conventional burners. The line will strengthen voestalpine’s market position as a supplier of seamless tubes for oil and gas exploration.