Excuse me: can J422 welding rod not be used for HRB335 steel bar welding? Where there is such a rule, I see the norms can use ah.
JGJ18-2003 regulations for welding and acceptance of reinforcing steel bars 3.0.3:HRB335 in the case of bar welding and lap welding, the use of E4303 (GB/T 5117, E4303), both CHE422, that is, commonly known as J422.Table 3.0.3 provides as follows
Lap welding is possible with E4303 welding rod, see JGJ18-2003 "steel welding and acceptance regulation", seventh page of writing is very clear.
Lap welding, welding joint welding stress is too large, easy to break joints, it is not recommended. Welding steel bar has a special butt welding machine
