Classification of Oil Casing Materials
27MnCrV is a new type of steel used in the production of TP110T steel grade casing pipe sleeves. The steel types used in conventional production of TP110T steel grade oil pipe sleeves are 29CrMo44 and...
Monthly Archives: January 2022
What are the Advantages of Seamless Steel Pipes
Seamless steel tube is a long strip of steel with a hollow cross section and no seams on the periphery. There are more than 5,100 production plants under 1,850 companies in more than 110 countries pro...
ERW Straight Seam Welded Pipe
ERW straight seam welded pipe, also known as "resistance welded straight seam welded pipe", ERW straight seam welded pipe is mainly pided into two forms: ERW AC welded steel pipe and ERW DC welded ste...
What are the Materials of Oil Casing Pipe
Classification of oil casing pipe Materials:
There are many types, the basic ones are ordinary carbon steel, J55, L80, N80, P110, etc .; then there are more special materials, such as 3Cr, 9Cr, 13C...
Several Treatment Methods for Pickling and Passivation of Seamless Steel Pipes
a. Pickling passivated seamless steel tube dipping method. Stainless steel pipelines, elbows, small parts, etc. are most suitable for this method, and the processing effect is the best. Because the tr...
ERW Straight Seam Welded Pipe Technical Standard
According to GB / T3092 "Welded steel pipes for low-pressure fluid transport", the nominal diameter of the welded pipe is 6 ~ 150mm, the nominal wall thickness is 2.0 ~ 6.0mm, and the length of the we...
Precautions for Seamless Steel Pipe Production
Cold drawn precision seamless steel pipe has the characteristics of no oxide layer on the inner and outer walls, high pressure without leakage, high precision, high smoothness, no deformation during c...
Comparison of ERW and LSAW Steel Pipes
"ERW steel pipe" is a high-frequency straight seam resistance welded pipe. It is used to transport vapor and liquid objects such as oil and natural gas, and can meet various requirements of high and l...
Hydrostatic Test of Oil Casing Pipe
Hydrostatic test of casing pipe:
①. Use high-pressure water gun to clean the inside of the tube;
②. The surface of the thread must be coated with lubricant to minimize damage during the hydrostati...
How to Control Defects in Seamless Steel Pipes
How to control defects in seamless steel tubes：
1. Blowing process
1) The injection pressure should be matched with the diameter and length of the capillary tube, to ensure that the blowing is str...
