Precision Sheet Metal Fabrication
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MTI ENGINEERING CORPORATION Precision Sheet Metal Fabrication |
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QUARTER HARD (No 3 TEMPER)(A) In low carbon cold-rolled strip steel, a medium soft temper produced by a limited amount of cold rolling after annealing. (B) In brass mill terminology. Quarter-Hard is one B and S number hard or 10.95% reduction. (C) In stainless steel terminology tempers are based on minimum tensile, or yield strength. For Chromium-Nickel grades Quarter Hard Temper is 125,000 T.S., 75,000 Y.S. min. QUENCHINGIn the heat treating of metals, the step of cooling metals rapidly in order to obtain desired properties; most commonly accomplished by immersing the metal in oil or water. In the case of most copper base alloys, quenching has no effect other than to hasten cooling. QUENCH HARDENING(Steel) - A process of hardening a ferrous alloy of suitable composition by heating within or above the transformation range and cooling at a rate sufficient to increase the hardness substantially. The process usually involves the formation of martensite.
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| MTI ENGINEERING CORPORATION Precision Sheet Metal Fabrication |
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15678 Graham St. Huntington Beach, CA 92649
Telephone: (714) 891-4619 Marc Grismer Ext 105 Fax: (714) 891-7570 |
| Web Site: http://www.mtiengineering.com |
| E-Mail: sheetmetal@mtiengineering.com |
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