Our company is the manufacturer, supplier and exporter of ASTM A519 4140 seamless steel pipe. ASTM A519 4140 seamless steel pipe material is stored under annealing, normalizing or quenching and tempering conditions. The heat treatment material is controlled in L80, P110, Q125 or the performance specified by the customer. ASTM A519 4140 seamless steel pipe is weldable, but it needs to be preheated before welding.
There are generally two pickling methods for ASTM A519 4140 seamless steel pipe (carbon steel), as shown below:
One is sulfuric acid: diluted to a concentration of about 20%, heated to 60-65 degrees, and generally washed for 20-30 minutes.
The next Hydrochloric acid: also diluted to a concentration of about 20%, pickled directly at room temperature, generally for 20-30 minutes; then, after pickling, rinse immediately and neutralize immediately. Such as rust prevention, passivation treatment is also required.
For more information about ASTM A519 4140 seamless steel pipe, please contact us. We will reply you as soon as possible. If you are interested in purchasing ASTM A519 4140 seamless steel pipe, please contact us directly online, or send your specific needs to the company's mailbox. We will quote you as soon as possible.
