CHE422 (J422) comply with: GB E4303 considerable: JIS D4303 AWS E6019 Description: CHE422 titanium calcium type coating of carbon steel electrode with excellent welding performance, stable arc weld bead appearance, less spatter, AC and DC. Can be all-position welding. Uses: low carbon steel for general structure and strength low-alloy steel grades, such as 09Mn2 so on. Deposited metal chemical composition: (%) C Mn Si SP - - - ≤0.035 ≤0.040 deposited metal mechanical properties: Tensile strength (бb) Mpa yield point (бs) MPa Elongation (δ5)% Akv impact energy ( J) 0 ℃ ≥420 ≥330 ≥22 ≥27 X-ray testing requirements: Level Ⅱ reference current: (AC or DC) electrode diameter (mm) 2.0 2.5 3.2 4.0 5.0 5.8 welding rod length (mm) 300 300 350 400 400 400 welding Current (A) 40-70 70-110 100-150 160-210 200-260 260-310