China Wholesale for Tool Steel for Czech republic Factory

https://www.weldmongerstore.com/

https://www.weldingtipsandtricks.com/carbon-steel.html

Welding Low Alloy Steel usually goes better with a preheat. Carbon content is the main factor to consider in how much preheat to use… There is something called a “carbon equivalent formula” that takes into account elements other than carbon that contribute to hardening. For example 4130 chromoly has a carbon content of .30 percent but has a carbon equivalent of .60 percent.