Short answer: Welding flux shields the molten pool from air and cleans the surface so the weld solidifies sound. Stick (SMAW) rods carry flux in the coating, submerged-arc (SAW) uses a granular blanket for deep penetration, and flux-cored (FCAW) wire carries flux in the core for all-position work.
At a Glance
Picking the Flux
Match flux to process and position; tie to Metal Welding Distortion Guide e Weld Defects Guide. Cross-refer Dissimilar Metal Welding Guide e Metal Heat Affected Zone Guide.
Soundness & QA
Good flux cuts porosity; verify with Metal Ndt Guide and document per Mill Test Certificate Guide. Protect stock via How To Prevent Metal Rust.
QA & Supply
HXSCO supplies weldable grades and consumables guidance for your process.
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Perguntas frequentes
Shields the pool from air and cleans the surface so the weld is sound.
SMAW flux is on the rod; SAW uses a granular blanket for deep penetration.
Flux-cored wire — flux in the core, good for all-position welding.
Wrong flux causes porosity, slag and weak joints.
HXSCO supplies weldable grades with certificates and process guidance.
Source Weldable Metal from HXSCO
HXSCO supplies weldable steel, stainless and alloy grades with certificates for SMAW, SAW and FCAW. Send your spec and quantity for a quote.