Yearly Archives: 2022
Length of API 5CT Casing and Tubing
APT 5CT specified the requirements of Casing and Tubing for the purpose of oil or gas production, must be cased with material with sufficient strength and functionality.
Casing and tubing are the m...
The Difference and Use of ERW, LSAW and SSAW Steel Pipe
ERW is-high-frequency resistance welding-straight seam welded pipe; LSAW is-submerged arc welding-straight seam welded pipe; both belong to straight seam welded pipe, but the two have different weldin...
The Difference Between Galvanized Steel Pipe and Black Steel Pipe
Black steel pipe is uncoated steel, also known as black steel. The dark color comes from the iron oxide formed on its surface during the manufacturing process. When a steel pipe is forged, a black oxi...
Welding Process of Petroleum Casing Pipe
Welding process of oil casing pipe
(1) Selection of welding method: 80%Ar+20%CO2 gas shielded welding.
Selection of welding data: ER55-G welding wire is used, with a diameter of 3.2mm.
Welding paramet...
Inspection Standards for Seamless Steel Pipes
Inspection of geometric dimensions and shape of steel pipes:
1. Steel pipe wall thickness inspection: micrometer, ultrasonic thickness gauge, no less than 8 points on both ends and record.
2. Inspec...
The Specific Content of Seamless Steel Tube Acceptance
What are the specific contents of seamless steel pipe acceptance?
Inspection of geometric dimensions and shape of steel pipes:
①Wall thickness inspection of steel pipe: micrometer, ultrasonic thic...
Measures that the Oil Casing Plant can Take on the Production Line
In order to maintain the heating temperature of the petroleum casing pipe during rapid heat treatment, the heating temperature is evenly distributed along the longitudinal direction of the steel to ob...
ERW Steel Pipe as the First Choice for Urban Gas Pipeline Network
Why is ERW steel pipe the first choice for urban gas pipeline network? The main advantages and disadvantages are:
(1) High strength (large carrying capacity);
(2) The wall thickness is uniform and lig...
Urban Gas Pipeline Network Using ERW Pipe and its Anti-corrosion Problems
Comparison of pipe materials used in urban gas pipeline network:
At present, the urban gas pipeline network mainly uses ERW pipes, cast iron pipes and polyethylene (PE) pipes. From the perspective of ...
Acceptance Standard of ERW Steel Pipe
How to accept the ERW pipe?
1. Product quality certification document requirements
1) Welded steel pipes should have factory quality certification documents
Including: product certificate, material ce...
