IS 814-1970

标准号：IS 814-1970
发布日期：1971/8/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This specification lays down the requirements for the following two groups of covered electrodes of sizes 1 mm and above:Group 1 Normal penetration and deep penetration electrodes for metal arc welding of mild steel (42-54 kgf/mm2).Group 2 Normal penetration hydrogen controlled electrodes for metal arc welding of medium tensile steel (52-62 kgf/mm2).