Lark Heat Treating Incorporated

Lark Heat Treating was founded in 1978 by brother’s Frank and Gene Clark with the guidance and inspiration of their father, Wade Clark, whose heat treating career started in 1936. Now owned and operated by Frank and Gene, Lark Heat Treating is one of the top commercial heat treaters in the southern United States, serving hundreds of customers over the past three decades, including the leading service tool companies in the international petroleum industry.

Modern Facilities

Our heat treating plant occupies more than 54,000 square feet of modern office and warehouse space on a four-acre tract in the northwest Houston area. We are in a constant state of maintaining, upgrading, and expanding our heat treating plant and capabilities, with state-of-the-art equipment and ongoing training for our personnel.

Broad Capabilities

Lark Heat Treating offers a wide range of atmosphere and open-fire heat treat capabilities, carburizing and carbonitriding, and oil-, water-, and polymer-quenching services. We also offer:

• Induction Heat Treating
• Gas Nitriding
• Abrasive Cleaning
• Quench and Temper (oil, water, and polymer)
• Carburizing
• Straightening
• Aging
• Boronizing
• Atmospher Quench and Temper
• Carbonitriding
• Stress Relieving
• Solution Annealing
• Vacuum heat treat
• Normalizing

Complete Carbonitriding & Carburizing Services

Ensure your products last with quality carbonitriding and carburizing from Lark Heat Treating of Houston, Texas. We have the capability to heat treat materials in our pit furnaces up to 1950ºF with a maximum diameter of 26″ and a maximum length of 72″. Our pit furnaces can safely handle up to 3,000 pounds per load.

We also use Internal Quench furnaces for carbonitriding and carburizing. Our IQ’s are able to maintain a temperature of 1950ºF with a maximum batch load of up to 1,000 pounds. These furnaces have a maximum capacity of 24″ X 48″ X 20″. Load and batch capabilities may vary depending on the size, shape, and requirements of material, case depth, and specification requirements.