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Welding galv. ASTM A53 gr. B handrail?

Welding galv. ASTM A53 gr. B handrail?

(OP)
A project specifies galvanized ASTM A53 grade B pipe for handrail. Must this handrail be welded with GMAW (mig) or can SMAW (stick) be used?

RE: Welding galv. ASTM A53 gr. B handrail?

Normally you build the rail, and galvanize afterwards. Process doesn't matter....but I would choose GMAW.

RE: Welding galv. ASTM A53 gr. B handrail?

StructureMan44,

It depends on if you are talking about shop or field work. I agree with david's post above for shop work, however if you install a galvanized handrail in the field SMAW would be better.

Be sure to protect your welders from zinc fumes either way. A proper respirator should be worn during welding. Zinc sickness/poisoning is pretty nasty.

RE: Welding galv. ASTM A53 gr. B handrail?

(OP)
David339933 - Thank you; why do you choose GMAW?
DVWE - Thank you; this will be field welded - so SMAW would be better?

RE: Welding galv. ASTM A53 gr. B handrail?

Where possible grind the zinc off the areas to be welded, touch up with Zinc rich spray paint after.
Ideally Fabricate from bare steel, Hot dip Galvanize after, mask off areas to be field welded.
B.E.

You are judged not by what you know, but by what you can do.

RE: Welding galv. ASTM A53 gr. B handrail?

Agree with the above if your client will accept spray painted welds and adjacent area at the field joints.

Even with grinding, protect the grinder/welder from breathing the grinding dust.

Yes, SMAW will be best in the field.

RE: Welding galv. ASTM A53 gr. B handrail?

I chose GMAW for speed. In a shop, it is much more efficient. In the field, as others have stated, there are additional things to consider..and SMAW is usually the simplest to implement (wind is not such a big factor with SMAW, and lead length is usually much longer).

RE: Welding galv. ASTM A53 gr. B handrail?

You can also use flux core in the field , it is less sensitive to wind and the operator can set up a fan behind them to assist in keeping the fumes out of the welding helmet. I have attached an article that may help.
B.E.

You are judged not by what you know, but by what you can do.

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