Advanced quench-and-temper facility from SMS group at Timken Steel Gambrinus works in full swing

The advanced quench-and-temper plant has commenced full commercial production at Timken Steel’s Gambrinus works in Canton, Ohio/USA. The new heat-treatment line supplied by SMS group is able to treat 10 tons per hour of steel bars and heavy-walled tubes, up to 13 inches in diameter, precisely complying with specified values.

Carolee Vanicek, director of tube manufacturing at Gambrinus, declares: “We found that SMS was able to bring the best technology to meet our needs and satisfy our customer demand. The commissioning effort went very well, and SMS group has met all the expectations we had on the AQTF.”

The compact line is characterized by a combination of induction preheaters and combustion furnaces for austenitizing and tempering processes. Subsequent cooling takes place in the newly developed Quenching Shell, an advanced OD/ID water sprayer, characterized by high-quench severity and, at the same time, great flexibility to adapt to changing process conditions.

During the commissioning period, a full array of intensive testing was carried out, beginning with the certification of the combustion heating furnaces in accordance to the SAE ASM2750-E standard, which calls for extremely demanding temperature homogeneity inside the furnace chamber, as a requirement for producing aerospace-quality material. Different seamless mechanical tubes and SBQ (Special Bar Quality) products have been processed by the AQTF, from 6 inches to 12 inches (out of a selectable range from 4 inches to 13 inches). These products are made up of a variety of different steel grades that reflects Timken Steel’s vast portfolio. The tests were performed with increasing hourly throughput to stress-test all the line components.

Heat treatment plant at Timken Steel, Canton, OH/USA

The new heat treatment line at Timken Steel has the capacity for 50,000 process-tons annually of 4-inch to 13-inch bars and tubes for the automotive, industrial and oil and gas industries  (© Picture: SMS group)