Welding of Q355NH weathering steel plate

Welding of Q355NH weathering steel plate:
The allowable low ambient temperature during welding is as follows:
1) Carbon steel and ordinary low alloy steel (grade I): - 10℃
2) Carbon steel, ordinary low alloy steel, heat strength steel and alloy structural steel (B-I, A-II, III): 0℃
3) Hot strength steel and alloy structural steel (grade b-II and III): 5℃

In case of the following conditions in the welding environment of Q355NH weathering steel plate, effective protection measures shall be taken, otherwise welding is forbidden:
1) The wind speed of manual arc welding is greater than 8 m/s, and that of manual TIG welding is greater than 2 m/s;
2) The relative humidity is more than 90%;
3) Splashing water, rain or fog on weldment;
4) When the temperature of weldment is lower than 0℃. The Q355NH weathering steel plate welding should be windproof, rainproof and cold proof.

We can supply the Q355NH weathering steel plate with high quality and low price. If you want to know more about Q355NH weathering steel plate, please contact us freely. Our sale person will contact you as soon as possible.