The test of oil pipe

　　For oil pipe chemical composition detection, the main purpose is to determine whether the batches of finished products meet the steel grade product standard, and the result of this analysis is the basis for judging the batches of finished products. At present, the API 5CT Seamless Steel Oil Pipe Research Institute has completed the mass analysis of chemical components of finished products. The instruments mainly use direct reading spectrometer and carbon sulfur analyzer to accomplish a lot of online production inspection tasks.

　　The carbon sulfur analyzer has a good linearity. It is necessary to maintain and calibrate the equipment before the analysis, and verify the data with the standard material. The same analysis method for comparative analysis method, the analysis results of the unknown sample can be revised according to the deviation of standard.