When the right welding wire is used, it can reduce quality issues, speed up travel speeds and cut down on post-weld clean-up. Metal-cored, or solid, wires are able to increase the duty cycle rate and offer higher deposition than other wires. Yet, these wires often cost less. Understanding cored wire standards is important for choosing this type of consumable.
They are composed of a core that is encased in a metallic sheath. The wires offer good gap filling, high weld deposits chemistry, impact strength and low spatter. The wires are also compatible with different shielding gases, and can be transferred in various ways. ESAB Dual Shield II Ultra Series wires are, for example, designed to satisfy the demands of modern applications. The wires are extremely low in spatter, and emit fewer fumes. This allows for a faster clean up after welding and lower air emissions.
Welding wires are the building blocks of many industrial fabrications, and they play a vital role in providing quality welds. Fabricators should select the correct wire for an application by considering factors like composition, welding method and operating conditions. Precisely matched wires enhance integrity in critical structures and push the boundaries of innovation.
As technology advances, metal-cored wires have grown in popularity and application. These wires, which are versatile and can be used both manually and by robots for welding purposes, come in many different sizes. Also available are different types of packaging including spools, reels, and other options for storage and easy use.
ESAB, a leading innovator in cored wires, has created and innovated these products for decades. The company recently focused its efforts on packaging improvements for this product. Marathon Pac by ESAB, one of the company's innovative products, is a great example. This package offers a combination of the advantages of a spool, and reel. It is ideal for automated welding where wire sizes are frequently changed. The spool, which can be removed easily and placed in the receptacle to facilitate quick changes, is stored inside the receptacle. While the reel holds the wire at the proper length for automatic feeding.
Regardless of the type of cored wires selected, it is important to ensure they are properly stored and handled. By storing the cored metal wires in dry conditions and keeping them out of contact with water, oil or other chemicals, welders can minimize contamination risk. Avoid using wires with metal cores when welding in short-circuit mode, out of alignment, or for applications that have a low operator factors (the amount of time devoted to welding by the welder).
American Welding Society classes cored wires according to their tensile strenght, required gas and weld chemistry. For instance, E70C-6M H4 indicates a cored wire with a tensile strength of 70,000 PSI, six percent maximum hydrogen content and impact strengths down to -20 degrees Celsius. The fabricator can identify with ease the ideal weldable materials for any application. ESAB can provide you with more information about industry standards for cored steel wire.
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