Welding to galvanized steel

[LKK]

How galvanization is going to be affected by welding. I am aware that galvanization needs to be removed before welding, and then it can be restored - what is the lifetime of restored area? Has anybody have any experience with welding Nelson studs to galvanized beams?

 

[Rich2001]

Here is an example, tested by bending.
Typically the explosive nature of stud welding removes enough zinc to produce a good weld. Increase the weld time and/or amperage may be required.

If you have to make a repair use SMAW and 6010 electrode. (The rutile flusx improves the weld.)

 

LKK -- The American Galvanizers Association ("AGA&quot has two publications that you'd find useful: Welding & Hot-Dip Galvanizing, and the Inspection of Products Hot-Dip Galvanized After Fabrication, Including A New Section on Touch-up & Repair. You may request complimentary copies from the AGA, 800-468-7732, or you may download them from the AGA Web site,

http://www.galvanizeit.org.

We're also available to answer any other questions you may have regarding hot-dip galvanizing after fabrication (not galvanized sheet/strip products).

 

[sbjuke]

watch out for zinc oxide poisoning!