AWS 5.5: E9018-B3 H4 Basic coated low-hydrogen stick electrode for welding of 2.25% Cr - 1% Mo creep-resistant steels. Its special composition delivers excellent resistance to cold cracking. It retains excellent mechanical properties after long exposure to temperature up to 600°C. Extensively used in oil and gas industry, chemical industry, ammonia synthesis processes and thermal power plants for heat exchangers, boilers, pipes and pressure vessels with operating temperatures up to about 600°C.