Filler Metals/Electrodes

Common Causes and Cures of Hydrogen Cracking

Knowing the means by which hydrogen can enter the weld is a good defense against potential problems. These steps can help reduce the risk of cracking that leads to costly rework, downtime, increased labor needs, poor productivity and most importantly, product failure.
Experts
Filler Metals/Electrodes: Articles

Understanding the Basics of Low-Hydrogen Stick Electrodes

When welding in the flat and horizontal positions, point/drag the electrode 5 deg to 15 deg away from the direction of travel to help reduce the chance of trapping slag in the weld. The weld bead width should usually be two and half times the diameter of the electrode’s core wire for flat and horizontal welds.
Knowing the basics about E7018 low-hydrogen stick electrodes can be helpful in understanding how to maximize their operation, their performance and the welds they can produce.

Understanding the Basics of Flux-Cored Wires

Both gas-shielded and self-shielded FCAW wires can provide higher deposition rates than solid wire or stick electrodes and are relatively easy to use, making them a more productive filler metal choice for many applications. 
As with any filler metal, welders must weigh out the advantages and disadvantages of gas-shielded and self-shielded FCAW wires to determine if these are the best choice for their specific application.

Stick Welding Still Has a Place in the Fabrication Industry

The reasons for using stick welding vary. Fabricators may need greater access to the weld joint (where a MIG gun won’t reach) due to a complicated configuration. Or in some cases, the process may be specified for a given welding procedure. Welding on outdoor applications also benefits from stick welding since it’s very portable — it doesn’t require external shielding gas cylinders or a wire feeder. 
Many applications in the fabrication industry still require stick welding. Like other filler metals, stick electrodes are available in many types, each of which provide different mechanical properties and operate with a specific type of welding power source. Before you power up your machine and pick up your stick electrode holder, consider these basic guidelines to help simplify your stick welding experience. 

Characteristics of Heat Treatable vs. Non Heat Treatable Aluminum Alloys

Most of the commonly used filler alloys will not respond to post-weld heat treatment without substantial dilution with the heat-treatable base alloy. This is not always easy to achieve and can be difficult to control consistently. For this reason, filler alloys have been developed to independently respond to heat-treatment.  
There are certainly differences in strengths for aluminum alloys, whether they are heat-treatable or not. These different characteristics impact the final strength of the weld because these alloys differ in their chemical and metallurgical structure and in how they react during the welding process.

Four Things You Must Know About Metal-Cored Wire

Because metal-cored wires can weld through mill scale and light rust, they can often eliminate pre-weld activities like grinding, sandblasting or adding anti-spatter before the welding process begins. This feature can also eliminate or reduce the cost for purchasing grinding wheels and anti-spatter solution.
In recent years, metal-cored wires have become an increasingly common option to enhance productivity, improve quality and reduce costs in the metal fabrication industry. Here are four important details about metal-cored wire that shops should know if they are considering a filler metal conversion.

 

Filler Metals/Electrodes: Industry News

Hobart Campaign Celebrates Partnership with U.S. Navy

The campaign, “It’s the tie that binds,” showcases the Marine Group Boat Works partnership with the U.S. Navy to celebrate creating some of the most distinctive and instrumental things that impact the world.

Hobart Launches New Brand Campaign

“It’s the tie that binds” celebrates the journey from the filler metals customers use to the relationships developed on the journey to find the right filler metal solution.

Rent a Robot at Miller Electric

As part of the program, Miller offers a full assessment prior to rental to determine that the parts to be welded are repeatable and able to benefit from automation. They also preprogram the PerformArc robotic welding cell and set up any necessary tooling.(Click on photo to enlarge it)
The new Robotic Welding Cell Rental Program allows end users to test automation in their own welding operation before purchasing equipment, minimizing risk and barriers regarding capital expenditures, and helping businesses meet short-run production demands.

 

Filler Metals/Electrodes: Products

Welding Wire Meets Manganese Exposure Limits

Coreweld C6 LF offers the same enhanced features of the standard Coreweld C6, with welder-friendly operating characteristics that include consistent arc stability, very low spatter, good bead shape and minimal clean-up in an easy-to-use wire. Its low diffusible hydrogen level helps avoid hydrogen-induced cold cracking in the welding of high strength steel.
Coreweld C6 LF low manganese emission metal-cored welding wire from ESAB is ideal for hand held or automated welding in automotive, civil construction, mobile and heavy equipment, shipbuilding, rail car manufacturing and general fabrication.

Produce Weld Beads with Almost No Ripple and Little Spatter

Dual Shield II 4130 SR is ideal for welding offshore oil and gas topsides and platforms. Dual Shield II 70-Ni1 H4 provides excellent low temperature toughness in both as-welded and stress-relieved conditions.
Dual Shield II 4130 SR and Dual Shield II 70-Ni1 H4 low-alloy flux-cored wires from ESAB are excellent for all-position welding with high deposition rates and increased efficiency.

Metal-Cored Wires Remain Strong After Extensive Stress Relief

The FabCor 4130 SR exceeds AWS minimum specifications by offering a tensile strength of 107,000 psi and a yield strength of 98,000 psi, when operating with a shielding gas of 80 percent argon and 20 percent CO2. The wire also offers Charpy V-Notch impact values of 30 ft-lb at temperatures of -60 deg F (-50 deg C). The FabCOR 4130 wire is available in .045 in diameter, packaged on a 33 lb spool. 
FabCOR 4130 SR and SubCOR 4130 SR wires from Hobart are ideal for single and multi-pass welding in oil and gas and offshore applications, wellhead fabrication and repair, and others using high-strength low-alloy steels.