• Improper welding of X80 pipeline may cause cracks
• Brief introduction of API X52 pipeline steel
• The difference between PSL1 and PSL2
• Harm of inclusions in X70 pipeline steel
• API 5L pipeline pipe
• X52 steel plate surface quality standards that need to be met
• The basic production process of API 5L X60 pipeline steel
• The key to Q460D steel welding process
• What does the heat treatment of Q690 Steel include?
• Reasons for choosing Q690D steel

Weathering Treatment Of S355J2WP steel

Before weathering treatment, we must consider the following three points:
a.The following conditions are not suitable for weathering treatment of S355J2WP: (1) Placed in soil or water; (2) Located in areas containing ammonia and other alkaline gases; (3) S355J2WP steel is located in an impact-prone location. Because these conditions affect the formation of a stable oxide film.

b.When S355J2WP needs welding, the solder must have weather resistance and corrosion performance, so it is usually welded first and then subjected to weather resistance treatment. If prepalene is sprayed before welding, bubbles will occur.

c. When using high-tension screws, nuts, and backing plates, these supplies must also have the characteristics of weather and corrosion resistance.

After weathering treatment, S355J2WP has the following advantages:
(1) Because a stable oxide film is formed, there is no rust peeling off, so pollution problems can be avoided.
(2) The surface of S355J2WP is quite smooth.