Tig Welding 4130 Chromoly with Preheat
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A rush job came in the shop the other day. It was a part made from 4130 chromoly and it was 1-1/4" thick.
while thin wall 4130 tubing can be tig welded without a preheat or post heat treatment, ...Thick 4130 requires a preheat in order to avoid hard and brittle areas.
Preheating slows the cooling rate and drives off moisture and is needed for high strength low allow steels like 4130 and 4140 in order to avoid cracking and hard brittle zones.
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Видео Tig Welding 4130 Chromoly with Preheat канала weldingtipsandtricks
Subscribe to my channel for more weekly videos.
https://goo.gl/T7d23Z
see the full article on my web site http://www.weldingtipsandtricks.com/welding-4130-chromoly.html
For even more options, check out my Amazon recommended products page at https://www.amazon.com/shop/weldingtipsandtricks
A rush job came in the shop the other day. It was a part made from 4130 chromoly and it was 1-1/4" thick.
while thin wall 4130 tubing can be tig welded without a preheat or post heat treatment, ...Thick 4130 requires a preheat in order to avoid hard and brittle areas.
Preheating slows the cooling rate and drives off moisture and is needed for high strength low allow steels like 4130 and 4140 in order to avoid cracking and hard brittle zones.
Follow Welding Tips & Tricks on social media to see what I’m up to:
Instagram: https://goo.gl/AncnFa
Facebook: https://goo.gl/e2TtXC
Join the discussion with thousands of welders at the Welding Tips & Tricks forum
http://forum.weldingtipsandtricks.com
Видео Tig Welding 4130 Chromoly with Preheat канала weldingtipsandtricks
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