RoyAlloy is a new stainless mold-base steel, developed by Edro Specialty Steels, to overcome shortcomings associated with prehardened 420F (1.2085) stainless holder steels: a lack of toughness, unpredictable stability, inconsistent machinability and poor weldability. Edro says thermal treatments give the material improved dimensional stability after machining without the need for stress relieving. RoyAlloy is a 400 series martensitic stainless designed specifically for plastic and rubber tooling. It's available from stock in flat sizes up to 12 inches thick and rounds up to 12 inches in diameter. For more information, go to http://rbi.ims.ca/4921-513.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.