Menu Close


The Dawn Of a New Revolution

The QST bars, a product of world-class THERMEX technology by the German major Hennigsdorfer Stahl Engineering (HSE) is manufactured by Suryadev Alloys And Power Pvt. Ltd. in Chennai.

Manufacturing - At Its Best

The first of its kind, Suryadev Plant has straight and continuous rolling mill backed by advanced production facilities, modem laboratory and quality control systems. The groove passes of each section is developed by the excellent mix of highly trained, experienced and qualified technicians.

The sprawling green field Thermex plant of Suryadev, located at new Gummidipoondi, 40 KM from Chennai & 3KMs off N.H.5, is designed to the exacting international standards by Hennigsdorfer Stahl Engineering (HSE), Germany.

Technology - At Its Best

The THERMEX cooling technology involves subjecting the bar to a predetermined quantity of high pressure water off the final rolling stand. Based on the Size (mm), the Air & Water pressure is automatically controlled by PLC system from ABB. This converts the outer surface to a hardened structure with the core still hot. By allowing to cool at ambient temperature, the hot core tempers the outer surface through thermal exchange. This process results in unique structure of tempered martensite of the peripheral zone and a fine grain of ferrite pearlite at central zone, thereby producing world class QST bars.

Quality - At Its Best

Suryadev QST bars is synonymous to Quality. The production is constantly monitored by stringent quality control systems like SPECTRO METER analysis, UTM Load Testing and Ring Testing of QST tempering. From raw materials to Billets to finished QST bars, every batch is tested as per BIS and THERMEX specifications at our well equipped Chemical and Physical Labs. The products and processes are approved by various reputed agencies like BIS and THERMEX and Test certificates are issued with every delivery.