It's not uncommon for problems to arise when flux-core welding stainless steel. Our experts examine bad flux-core welds and what may be causing the failures.

Making a repair weld on an unknown material? Here are some tips to help you identify what it is you’re welding.

Consumables Corner columnists Rob Koltz and Dave Meyer discuss the ferritic (magnetic) and austenitic (nonmagnetic) features of welding stainless steel.

Submerged arc welding flux is not one size fits all. Rob Koltz and Dave Meyer of ESAB break down the varieties of SAW flux and how they differ from one another.

Weld porosity is a dangerous weld defect that has myriad causes. Rob Koltz and Nino Mascalco analyze a reader's situation and help him nail down what's causing the porosity in his pipe fabrications.

Weld cracking is a complicated and serious problem that can happen to any welder. Nino Mascalco and Rob Koltz provide a rundown of weld cracking and explain how you can prevent it from happening.

Rob Koltz and Nino Mascalco provide background on FCAW electrodes and explain why it’s a bad idea to use shielding gas with self-shielded electrodes.

Consumables Corner contributors Rob Koltz and Nino Mascalco help a reader work through performance issues when using gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), and flux-core arc welding (FCAW) for vertical-up applications on stainless steels.

Nino Mascalo and Rob Koltz discuss heat input and weld discoloration in stainless steel welds.

In the second part of the series, Nino Mascalo and Rob Koltz further help a manufacturer of carbon steel pressure vessels unearth why he’s having trouble increasing submerged arc welding (SAW) throughput.

Nino Mascalo and Rob Koltz help a manufacturer of carbon steel pressure vessels unearth why he’s having trouble increasing throughput.

Q: We're a midsize fabrication shop that builds and welds machines and structural components from varying types of carbon steel. Some of the material is mild carbon steel, while some is high-strength, low-alloy (HSLA) or stronger grades of structural steel. If we're welding on thicker sections of...