If you weld you should read this

[crawlin91]

http://www.brewracingframes.com/id75.htm

 

[railman]

anyone who has been trained to weld properly should allready know this....

as for shade tree mechanics......good knowledge to learn....

l8r, John

 

[warrior24]

Same goes for welding galvanized metal, It produces chlorine gas. Thanks for the link.

 

[AllanD]

Same goes for welding galvanized metal, It produces chlorine gas. Thanks for the link.

No, it doesn't

Explain where the chlorine comes from?

Chlorine is an element and it must come from SOMEWHERE.

as for welding galvanized metal:
http://www.sperkoengineering.com/html/articles/WeldingGalvanized.pdf

 

[TRH]

Really applies to any kind of chemical product, but solvents in particular are something to tread very lightly around -- especially with a lot of heat (welding, grinding, etc.), plenty of potential for some nasty concotion to brew up.

AllanD, isn't there a similar hazard with welding high-chromium steels?

 

[kennykenny]

Good read, I'll be more careful from now on.

 

[Ranger#1]

holy shit that scared the hell outa me i did not know that im glad i read it

 

[warrior24]

No, it doesn't

Explain where the chlorine comes from?

Chlorine is an element and it must come from SOMEWHERE.

as for welding galvanized metal:
http://www.sperkoengineering.com/html/articles/WeldingGalvanized.pdf

Well that's good to know, I was told by my welding instructor who is always seems to have a bs story.

 

[Jay FX4]

I hope terrorists don't find out about this....

 

[ajmiller]

hahahahahah i agree with Jay on this one hahah

 

[dangerrangerstx]

its fun jk ive frlt dizzy and couldnt see after torching and grinding shit i wore safty glasses tho

 

[Iron Ranger]

Well that's good to know, I was told by my welding instructor who is always seems to have a bs story.

Actually, galvanized stuff is coated in zinc. The resulting fumes cause zinc poisoning, I know a few welders who have this sickness for life. The zinc will stay in the body for a long time, so the next time they get even a whiff of zinc, they're sicker than before.

Lots of up-wind ventalation and proper position of yourself in relation to the fumes helps out tremendously.

isn't there a similar hazard with welding high-chromium steels?

Yes. OSHA recently tightened down their chromium parts per million allowances. In my shop, some radiators that serve in a corrosive environment(i.e. near or on the ocean or salt) are made out of stainless (chromium is the main ingredient) and we had to move all the stainless welding to 2 sucker tables and one down-draft table.

Long exposures to chromium fumes causes massive nerve damage among other things I can't recall now.

If the shop had central ventalation, which we don't have, we would've been a lot better off.

 

[trusted_expert]

WOW four parts per million can be fatal thats just wow no words. ill never prep a weld surface with brake clean ever ever ever again. glad i read that

 

[Will]

Phosgene gas...

How is that guy doing now?

 

[JohnnyU]

In my shop, some radiators that serve in a corrosive environment(i.e. near or on the ocean or salt) are made out of stainless (chromium is the main ingredient)

If by "main ingredient" you mean 10-20% by mass, then I would agree with you. It's still mostly iron.