COYOUCO E4303 Welding Rod J422 Carbon Steel Stick Electrodes for Welding Machine Element ARC Welding Equipment,4mm/10kg/170 Pcs

Precise SizeAvailable diameters: 2.5mm/3.2mm/4mm optionalLength:300mm/350mm/400mm optionalProduct model: J422 (J40.50)Standard: GB/T 5117 E4303Used for welding important low-carbon steel structures and low-strength low-alloy steel structures such as O235, 09MnV, 09Mn2, etc.Wide ApplicationsGB/T 5117 E4303 suitable for intermittent welding of thin metal plates, pipeline projects, sheet metal and short welding, and cover welding which requires a smooth surface.

• CARBON STEEL ROD:This carbon steel welding rod is suitable for welding thicknesses ranging from 2.5mm to 4.0mm, with a tensile strength of 430-560MPa. It offers excellent welding performance for all positions, including PA, PB, PC, PD, PE, and PF.
• GOOD WELDING USABILITY: Welding rod features a stable arc, minimal spatter, easy slag removal, and smooth arc re-striking, ensuring high-quality welds. It offers adjustable weld bead shape—whether narrow or wide, thin or thick—making it easy to work with and improving welding efficiency.
• ALL-POSITION WELDING: Welding rod is perfect for welding medium-grade carbon steels, especially cold-rolled steels that may exhibit excessive porosity when welded with conventional electrodes. It does not require preheating, ensuring strong and clean welds without the risk of porosity.
• MULTIPURPOSE WELDING ROD: Our arc welding rods provide high strength, making them suitable for diverse applications, including welding on circuit boards, electronic equipment, construction, automotive, fabrication, and more. It's the perfect choice for both professional and DIY welding tasks.
• STORAGE METHOD:Store welding rods in a cool, dry, and ventilated area. Typically, there is no need to bake the welding rod before use. If the electrode is wet, it should be baked at 150°C-170°C for 0.5-1 hour before use to ensure optimal welding performance.