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Spanish (UNE) Standards for Steel Materials

This group of UNE standard specifications covers carbon and alloy steels, plates for boilers and other pressure vessels, sheets and strips, high-strength low-alloy steels, heat-treatable steels, hot and cold-rolled plates for cold forming, and non-alloy steels. Steel casting specifications call out the standard properties for pressure purposes. The group of standards for tool steels, stainless and heat resisting steels is also presented.

The Nitrocarburizing Process: Part Three

Nitrocarburizing represents a critical thermochemical surface treatment process designed to enhance the surface hardness of steel components through controlled nitrogen and carbon diffusion. This comprehensive study examines the effects of nitrocarburizing on AISI 1020 carbon steel and X37CrMoV5-1 hot working tool steel, analyzing microstructure formation, hardness profiles, wear resistance, and corrosion behavior.

Welding of Tool Steels

Tools and dies do wear and are damaged but by means of welding they can be repaired and reworked and returned to service. In addition, certain kinds of tools and dies can be fabricated by welding.
In tool and die welding it is not always necessary for the electrode used to provide a deposited weld metal that exactly matches the analysis of the tool steel being welded. It is necessary, however, that the weld metal deposited match the heat treatment of the tool or die steel as closely as possible. Thus, selection of the proper electrode is based on matching the heat treatment of the tool or die steel.