HOT ROLLING IS A COST-EFFECTIVE PROCESS THAT RESULTS IN STRONG AND DUCTILE STEEL THAT IS EASY TO WORK WITH.
5
After that, the rolled lengths of metal are set in a cooling bed. The entire process, from the heated furnace to setting a newly rolled shape on the cooling bed, takes less than two minutes.
6
At the end of the process, the original square or rectangle profile of the billet has changed to an asymmetrical or symmetrical section.
3
Next, the steel billets exit the furnace and travel through our eleven stand cross-country bar mill. This system includes a roughing stand and multiple two-high roll stands.
4
As the metal travels through the stands, it is squeezed, shaped, and elongated until it leaves the last roll stand as a 80-150 foot long section.
HOT ROLLING
At McDonald Steel Corporation, our 14” production line is an eleven stand cross-country bar mill, and our system is one of the only systems in the world that can produce both symmetrical and asymmetrical forms.
1
To begin the hot rolling process, billets of steel are heated in a furnace until they reach temperatures above the recrystallization point. At McDonald Steel Corporation, we typically heat steel to 2300°F.
2
The furnace evenly distributes heat throughout the length of the metal to make it malleable and easy to form.
TOOLED TO ROLL MORE THAN 500 ASYMMETRICAL AND SYMMETRICAL HOT ROLLED STEEL SHAPES
McDonald Steel is tooled to roll more than 500 asymmetrical and symmetrical hot rolled steel shapes. Our manufactured steel sections are used in multiple markets for a wide variety of applications.