Horsburgh & Scott offers complete heat treating services. Utilizing state-of-the-art metallurgical processes, we can assure the quality of material for your gearing. Our capabilities include stress relieving, through hardening , and surface hardening. We have in-house metallurgical expertise to fully monitor the chemistry and properties of the materials. Our gas carburizing and hardening equipment is among the most advanced in the world, with capabilities of handling 16 foot long, 75 inch diameter parts weighing 60,000 lbs.