welding rod 7018 sizes suppliers

Understanding Welding Rod 7018 Sizes and Suppliers

Welding is a critical process in various industries, providing the necessary means to join metals and ensure structural integrity. Among the different types of welding rods available, the 7018 welding rod stands out for its versatility and ease of use. This article will delve into the sizes of 7018 welding rods and where to find reliable suppliers.

What is a 7018 Welding Rod?

The 7018 welding rod is a low-hydrogen electrode primarily used for welding carbon steel and low-alloy steel. The number 7018 in its name indicates its properties 70 refers to the minimum tensile strength of the weld (70,000 psi), 1 signifies that it is a welding rod (as opposed to a non-electrode), and 8 indicates that it contains iron powder and is suitable for alternating current (AC) and direct current (DC) welding.

Due to its composition and characteristics, the 7018 rod is especially favored for applications where weld integrity is fundamental, such as in the construction of bridges, buildings, and pressure vessels. It creates strong, ductile welds with excellent impact resistance, making it ideal for projects that may be subjected to dynamic loads.

Common Sizes of 7018 Welding Rods

7018 welding rods come in several sizes, which can affect the efficiency of the welding process as well as the quality of the finished weld. The most commonly available sizes are

- 1/16 inch (1.6 mm) - 3/32 inch (2.4 mm) - 1/8 inch (3.2 mm) - 5/32 inch (4.0 mm) - 3/16 inch (4.8 mm)

The size of the rod you choose will depend on the thickness of the materials you are welding, the position of the weld, and the welding machine's settings. Thicker rods are generally used for thicker materials, while smaller diameters are suitable for lighter jobs or when welding in tight spaces.

Key Considerations When Choosing a Welding Rod Size

1. Material Thickness For thicker materials, a larger diameter rod is often more effective, as it can produce deeper penetration and wider weld beads. 2. Welding Position Vertical or overhead welding might benefit from thinner rods since they are lighter and easier to maneuver, while flat welding can accommodate thicker rods for faster travel speeds.

3. Welder Skill Level Beginners might find smaller rods easier to control, while seasoned welders may opt for larger rods to increase productivity and meet stringent specifications.

Finding Reliable Suppliers

When searching for suppliers of 7018 welding rods, consider the following options

1. Local Welding Supply Stores These stores typically stock a variety of welding rods, including 7018. They can also provide helpful advice on the best rod size for your particular welding needs.

2. Online Retailers Websites like Amazon, eBay, and specialty welding supply shops often offer competitive prices and a wide selection of sizes. Be sure to check customer reviews and product ratings to ensure quality.

3. Manufacturers Companies that manufacture welding materials often have direct sales channels. Purchasing directly from manufacturers might provide better deals, especially for bulk orders.

4. Industrial Suppliers Providers of industrial and construction materials frequently carry a range of welding supplies, including 7018 rods. These can be a reliable source for businesses requiring consistent quality and supply.

Conclusion

The 7018 welding rod is an essential tool for welders, providing reliable performance across various applications. Understanding the available sizes and knowing where to source these rods can make a significant difference in the quality of your welding projects. Always consider your specific project requirements and choose suppliers that offer high-quality materials to ensure successful welding outcomes.