Full length heat treating of bar and tubing enables Gerdau MACSTEEL customers to machine distortion-free parts, eliminate production processes and SAVE MONEY.

The Heat Treating Division of Gerdau MACSTEEL was established in 1981 at a new facility in Huntington, Indiana. Gerdau MACSTEEL engineers were not satisfied with the current state-of-the-art heat treating equipment so they began RE-ENGINEERING everything from quench rings to austenitizing coils.

An effective operation was not obtained until the re-engineering enabled the quench and temper line to achieve the following results: straightness deviations of less than 0.030 inch per 3 ft. of material; Rockwell C hardness spread of less than 4 points; and one-half commercial heat treat tolerances as cited by the American Society for Testing and Materials in its A519 specification.

In 1990 a new quench and temper line increased the capacity at Gerdau MACSTEEL's Heat Treating Division. To accommodate the new line, Gerdau MACSTEEL expanded the Huntington, Indiana facility by 20,000 sq. ft. At the same time, it installed a new 15-inch Behringer band saw to complement the existing abrasive saws.

Today the Heat Treating Division in Huntington, Indiana, is a state-of-art, unique, technically advanced induction heating facility that specializes in bar and tube heat-treating. Full support equipment for customized cutting, straightening, tensile testing and sophisticated metallographic analysis is part of this in-line process, which can handle lengths up to sixty feet.

With many years of "hands-on" experience, Gerdau MACSTEEL has mastered the art of finely tuned induction heating. It works by combining advanced equipment design and manufacturing techniques with the talents, experience and close interaction of operations, technical, sales and management people. Gerdau MACSTEEL's Heat Treating Division Is now undergoing a major $5.3 million expansion. This program will provide a third complete heat treating line along with additional straightening, cutting, marking and packaging equipment - and bring capacity to over 40,000 tons per year.

All Heat Treatable Grades of Carbon, Alloy, Stainless

• Bar products - hot finished or cold drawn. ¾" to 4" dia.
• Tubular products - welded of DOM, hot finished seamless or CD seamless. ¾" to 6 ¼" O.D.
• Close tolerance custom cutting
• Guaranteed mechanical properties
• Custom straightening to half commercial tolerance
• Small quantities available
• Experimental/trial orders encouraged at minimal costs

Types of Heat Treating

• Thru-Hardening
• Surface Hardening
• Normalizing/Annealing
• Solution Annealing (on Ferritic Stainless)

Typical Applications

• Axle Tubing
• Crane Booms
• Gun Barrel
• Machinery
• Motor Shafting
• Oil Country Accessories
• Screw Machine Parts

Components for:

• Automotive Drivetrains & Suspensions
• Automotive Safety Equipment
• Construction Equipment
• Farm Equipment & Machinery
• Off-Road Equipment
• Trucks & Trailers

BAR AND TUBE HEAT TREATING

• COMMERCIAL
• EXPERIMENTAL
• LONG AND SHORT RUNS TO CUSTOMER SPECIFICATIONS