Low and medium pressure boiler tubes generally refer to seamless steel tubes used for low pressure boilers (pressure less than or equal to 2.5MPa) and medium pressure boilers (pressure less than or equal to 3.9MPa). They can be used to manufacture superheated steam tubes, boiling water tubes, water-cooled wall tubes, smoke tubes and arch brick tubes of low and medium pressure boilers. Generally, they are made of high-quality carbon structural steel such as No. 10 and No. 20 hot-rolled or cold-rolled.
Product Features
Complete specifications and steel types, excellent performance, can produce thick-walled tubes with a wall-to-diameter ratio of 36%, and can also produce thin-walled tubes with a wall-to-diameter ratio of less than 4%. The use of mature perforation technology, unique cold processing technology, advanced lubrication technology, and stable and reliable heat treatment technology ensures the stability of boiler tube product quality.
Product specification range:
Outer diameter: Φ16mm~Φ219mm; wall thickness: 2.0mm~40.0mm.
Based on the conventional API thickened oil pipe, Changbao special thickened products mainly have two directions. First, it can meet the special buckle processing requirements of customers, such as the integral joint buckle type of PH6 type; second, the oil field must cut off the damaged thickened threads for repeated use of old pipe bodies, but without thickened parts, the connection strength of the joint cannot be guaranteed. The extra-long thickened end can meet the needs of customers to repeatedly use thickened oil pipes and save costs.
Main grades or steel grades of products
Carbon steel N80-Q/L80-1/T95/P110
13Cr L80-13Cr/CB85-13Cr/CB95-13Cr/CB110-13Cr
Product implementation standards
API 5CT (9th)/Customer’s special size requirements for the end
Product features
Changbao special thickening products, the pipe body part fully meets the production and manufacturing requirements of API 5CT, and customers can customize the pipe end size according to their needs to meet the customer’s special buckle processing needs, or the needs of repeated processing and use. Changbao’s special thickened ends adopt the same or even higher quality control process as the pipe body, including sampling inspection of various performances of the ends, magnetic particle inspection, manual ultrasonic inspection, and CNC machining of the ends, to ensure that the quality of each end meets the customer’s use requirements.
Product use environment
Changbao’s special thickened products are suitable for the use environment requirements of API steel grades. The thickened ends fully meet the same use conditions as the pipe body.
Product specification range
Outer diameter: Φ60.3mm~Φ114.3mm; wall thickness: 4.83mm~9.65mm.
Post time: Nov-29-2024