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| >> GLOSSARY OF TERMS |
| H |
| HALF HARD TEMPER (A) No.2 Temper. In low carbon cold-rolled strip steel, produced by cold rolling to a hardness next to but somewhat softer than full hard temper (B) In brass Stainless Steel Strip, Tempers are based on minimum tensile or yield strength. For Chromium-Nickel grades Half-Hard Temper 150,000 TS., 110,000 Y.S. Min. |
| HARD DRAWING Drawing metal wire through a die to reduce cross section and increase tensile strength. |
| HARD DRAWN Wire or tubing drawn to high tensile strength by a high degree of cold work. |
| HARD DRAWN SPRING STEEL WIRE A medium high carbon cold drawn spring steel wire, Used principally for cold wound springs. |
| HARD TEMPER (A) For Steel see Full Hard Temper (B) In brass mill terminology. Hard Temper is four B & S numbers hard or 37.1% reduction. |
| HARDENABILITY The ability of a metal, usually steel, to harden in depth as distinguished from the terms "hardness." (See.) |
| HARDENED AND TEMPERED SPRING STEEL STRIP A medium or high carbon quality steel strip which has been subjected to the sequence of heating, quenching and tempering. |
| HARDENING Any process which increases the hardness of a metal, Usually heating and quenching certain iron base alloys from a temperature either within or above the critical temperature range. |
| HARDNESS Degree to which a metal will resist cutting, abrasion, penetration, bending and stretching, The indicated hardness of metals will differ somewhat with the specific apparatus measuring hardness, See Brinell Hardness, Rockwell Hardness, Vickers Hardness, Scleroscope Hardness. Tensile Strength also is an indication of hardness. ? |
| HEAT OF STEEL The product of a single melting operation in a furnace, starting with the charging of raw materials and ending with the tapping of molten metal and consequently identical in its characteristics. |
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