EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS 2017 - ESTAD 2017

The Special Bar Quality family comprises a wide range of steel grades, mainly requested by the automotive, energy and engineering sectors, for applications where significant performances are required (eg. stresses, temperatures, working cycles, etc.). To meet these requirements it is necessary to reach a precise control of both the mechanical characteristics and metallurgy structures along the...

Mechanical properties of steel wire rod are mainly influence by chemical composition and cooling rate of Morgan Stelmor cooling system, especially for high strength wire rod. Since the chemical composition will slightly fluctuate among different heats, it will accordingly cause the variation of mechanical properties. Although it can be compensated by cooling process adjustment manually,this...

A modernization project was undertaken by Kroman Celik Sanayii A.S. in order to improve their product quality, consistency and shape of the coil package, reduce maintenance and delays in rod mill, thereby increasing utilization and productivity. The project involved installation of a new Morgan Intelligent Pinch Roll and High Speed Laying Head, modifications to the existing controlled cooling...

PERT has developed and patented a new concept for the composite rolls for long product rolling mills, called LLR Rolls (Long – Life Rolling Rolls). LLR Rolls, allows mounting of cast iron, HSS or carbide rings on a shaft made of special alloyed steel, in order to increase the grooves working life and to decrease, consequently, the plant downtimes for stands changing operations. The...

Thanks to the extremely high stiffness of BSS Sizing Stands, we introduce the concept of “sizing stands” not only in special steel rolling mills (SBQ or alloyed steel), where the tolerance of the final products must be very tight, but also in rebar or wire rod rolling mills. This means a very high final product quality and a better product marketability, in fact the quality improvement does...

In the world, the rail production is on a growing trend as a consequence of the market interest to high-speed and heavy-haul transports. A confirmation to this come from the main international standards having been up-to-dated or re-issued after 2010, in USA, Europe, Russia, India and China. In 2014, the rail production in the world was approximately 12 million tons (Mt), of which 8 were...

Wire surfaces undergo many transformations on their way to the finished product. They are a very important key factor for the strength and quality of the wire. Fine steel wires have a small diameter such as 80 to 150 μm, however they have to resist high strength up to 3900 MPa during their application. During their production, any kind of surface damage has to be avoided. Another important...