Description
CHE 58-1 is an outstanding quality all-position welding electrode covered with extra low hydrogen potassium type coating for high tensile strength mild steels and low alloy steels. Its nominal welding efficiency is about 110% due to the iron powder contained. The weld metal shows excellent low-temperature toughness and high crack- resistance. It is widely used in important projects of ships, boilers, high-pressure vessels, bridges, skyscrapers, offshore drilling platforms, nuclear power plants, and so on. The groove of base metal should be cleared impurities away and the electrode must be baked at a temperature to 400% then be held 1- 2 hours before welding, 2.5 mm or less should be done by 350° then be held 1 hour.
