7018 welding rod is a professional tool in the field of welding. The characteristics of its main material, low-hydrogen iron powder welding rod, make it perform well in high-intensity welding operations.
1. Basic materials and characteristics
The core of 7018 welding rod is a special carbon steel alloy, and its outer packaging is made of low-hydrogen iron powder. This coating material is a key factor in determining the performance of the welding rod, including whether it can produce a stable arc and whether it can provide the necessary protective gas during welding. The main feature of low-hydrogen iron powder is that the hydrogen content is extremely low, which can effectively prevent hydrogen embrittlement and delayed cracking during welding and improve the quality of welds.
2. Scope of use and performance advantages
7018 welding rod is not only of excellent material, but also has a wide range of uses. It is mainly used for welding of various metals such as cast iron, low alloy steel, stainless steel, etc. Compared with other types of welding rods, it has better mechanical properties and crack resistance. In addition, it has good auxiliary process performance, such as easy-to-peel slag, low spatter and beautiful welding appearance.
3. Differences from other welding rods
E6013H and 7018 are both low alloy steel welding rods, but their deposited metal tensile strengths are different. E7018 has a higher tensile strength and is suitable for all-position welding, AC or DC reverse connection. As for the difference between welding rods and arc welding rods, welding rods are mainly used for conducting and filling materials during welding, while arc welding rods use the high temperature generated by the arc to melt the base material and welding rod to complete the welding.
