Talk:Bluing (steel)

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[edit] Heat treating

How does this relate to the blue finish one gets by simply heating steel or to "blue srping steel"? (See martensite). —BenFrantzDale 05:20, 6 December 2005 (UTC)

In gunsmithing terms that'd be "salt bluing," which was always rather rare, and more common in Europe than in North America. Pre-World-War-I production Lugers from the Mauser plant often had many of the small parts salt-blued (that is, immersed in molten salt until the martensite composition gave the desired surface color). It was both a heat treatment and a cosmetic coloring process, and the uniformity of color on the small parts was intended to show off the skill and technical prowess of the manufacturer.

Please quit using an end ) in the URL as HTML does not like it. Captain Cummings (68.48.36.183 (talk) 23:54, 2 June 2008 (UTC)). Thanks