 A short, intensive but very precise in-line cooling of the rolled bar is imparted in the Thermex process through a proprietary system. This treatment results in a cooled hardened periphery. On further cooling of the bar in atmosphere, a thermal exchange (THERMEX) occurs between the core and cooled outside surface whereby the resultant bar structure is a distinct tempered martensite at periphery and a fine grained ferrite¬pearlite structure in the central zone.
The Thermex bar produced by the above quenching and self tempering process (QST) has unique qualities of desired high strength and toughness combined with excellent ductility with bars having elongation (AS) values of 18 to 25%
Activities
Balbir Group is making steel from raw to the finished stage. It's steel melting units in Maharashtra & Silvassa
are involved in making of Billets / Ingots of prime quality.
This allows our rolling division to manufacture products precisely as per standards laid down by various quality agencies.
The Collaboration
Balbir Rolling Mills Ltd. has been licensed by Hennigsdorfer Stahl Engg. Gmbh, Germany - through its Indian collaborator H&K Rolling Mill Engineers Pvt. Ltd., - to manufacture Thermex bars for the first time in South Gujarat. Balbir is one of the leading producers of steel in this region - its promoters having vast experience in quality Steel manufacturing.
Advantages
1.Superior Product with consistent quality from bar to bar
2.Higher elongation combined with high yield strength
3.High thermal stability resisting loss of strength at high temperatures (400-600 deg. C) such as during fires
4.Better corrosion resistance
• Better resistance to fatigue
space
• High weldability
space
• High ductility
space
• Bond strength
space
• Resistance to strain aging
|
