CHE506 (J506) comply with: GB E5016 considerable: AWS E7016 Description: CHE506 is a low hydrogen potassium type coating of carbon steel electrode with excellent mechanical properties and crack resistance, AC and DC, all-position welding. Uses: Suitable for carbon steel or low alloy steel, such as 16Mn, 09Mn2Si such as welding and ship with A, B, D, E grade steel welding, and the corresponding strength grade of vehicles, buildings, bridges, important structural welding. Deposited metal chemical composition (%): C Mn * Si SP Cr * Ni * Mo * V * - ≤1.60 ≤0.75 ≤0.035 ≤0.040 ≤0.20 ≤0.30 ≤0.30 ≤0.08 ≤1.75% with * the total element deposited metal Mechanical properties: Tensile strength (бb) MPa yield point (бs) MPa Elongation (δ5)% Akv impact energy (J) -30 ℃ ≥490 ≥400 ≥22 ≥27 drug skin moisture ≤0.6% X-ray detection Requirements: Class Ⅰ. Reference Current: (AC or DC +) electrode diameter (mm) 2.5 3.2 4.0 5.0 5.8 electrode length (mm) 300 350 400 400 400 Welding current (A) 70-110 100-140 150-180 180-230 220-260 Note : ⒈ 350 ℃ before welding electrodes shall be baked 1 hour, with the drying with the use. ⒉ weldment before welding must remove oil, rust, moisture and other impurities. ⒊ using short arc welding method narrow channel.