牌号 | Sandvik 22.9.3.LR |
厂家 | Sandvik Materials Technology |
分类 | Steel |
介绍 | Sandvik 22.9.3.LR is a covered electrode with rutile-acid coating for welding of duplex (ferritic-austenitic) stainless steels of UNS S31803/S32205 type (e.g. Sandvik SAF 2205). It is characterized by very good welding properties and gives an austenitic-ferritic chromium/nickel/molybdenum weld metal with an extremely low carbon content for service temperatures up to 250 C (480 F). Spray transfer gives a bead with a finely rippled surface. There is little spatter and very good slag removal. Sandvik 22.9.3.LR is particularly suited for welding in tubes. Applications For welding austenitic-ferritic stainless steels, especially those with high resistance to stress corrosion cracking e.g. EN 1.4460 (Sandvik 10RE51), 1.4462 (Sandvik SAF 2205), 1.4417 (Sandvik 3RE60) and 1.4362 (Sandvik SAF 2304). Also suitable for welding of stainless structures where a particularly high strength is required. |
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