IS 814 Pt.1-1974

标准号：IS 814 Pt.1-1974
发布日期：1974/8/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围： This standard ( Part I ) lays down the requirements for the following two groups of covered electrodes of sizes 3·15 mm and above:Group 1 — Normal penetration and deep penetration electrodes for metal arc welding of structural steel products other than sheets ( tensile range 410-510 N/mm2* ).Group 2 — Normal penetration hydrogen controlled electrodes for metal arc welding of structural steel products other than sheets ( tensile range 510-610 N/mm2*).