What welding material yields normal zinc coatings?
When the selected welding rod material is more reactive than the surrounding steel, a different appearance over the weld can be expected which is often duller in appearance, rougher, and thicker. Where unsure of base metal chemistry, the welding materials listed in Table 1 below can be used to generally reduce coating thickness over the welds, resulting in a more uniform appearance overall.
TABLE 1: RECOMMENDED WELDING MATERIALS FOR MINIMAL THICKNESS OVER WELDED AREAS (UPDATED 2017)
|Welding Process||Lincoln Electric Welding Electrode||AWS Designation||Silicon (Weight %)|
Fleetwood 35 LS
NR 203 MP
*Note: It is recommend to use a test plate before use.
© 2023 American Galvanizers Association. The material provided herein has been developed to provide accurate and authoritative information about after-fabrication hot-dip galvanized steel. This material provides general information only and is not intended as a substitute for competent professional examination and verification as to suitability and applicability. The information provided herein is not intended as a representation or warranty on the part of the AGA. Anyone making use of this information assumes all liability arising from such use.