API 5L HIGH GRADE STEEL X100 pipeline

API 5L X100   SCH100 seamless steel pipe

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api 5l x100 pipe 
1.OD:10-1200mm 
2.WT:2-50mm,Length:2-12m 
3.Certificate:API 
4.Have stock

 X100 pipeline steel production process Microstructure and Strengthening Mechanism

 

High grade pipeline steel can reduce the cost of oil and gas pipelines, reduce costs, thereby significantly reducing the cost of natural gas. X100 pipeline applications have huge economic benefits, can make long-distance oil and gas pipelines cost savings of 5% to 12%. China's rapid development of X100 pipeline pipeline business is facing an important issue, therefore, X100 pipeline steel production technology, organizational performance is particularly important to understand. Maanshan Iron & Steel Co. money Hoi Fan by TMCP process to obtain the X100 pipeline analyzes X100 pipeline steel microstructure and strengthening mechanism for the X100 discussed. The results showed that: TMCP process to produce X100 pipeline is feasible, X100 pipeline steel with granular bainite microstructure-based, while a large number of small dispersed M / A islands and a small amount of bainite lath. M / A islands presents two kinds of morphology and distribution, in a distributed between the bainite laths, elongated shape; another distribution bainite lath boundaries, elongated pieces. TMCP rely mainly on the production of X100 pipeline steel phase transformation strengthening, grain refinement and precipitation hardening, where the phase transformation strengthening, mainly through high dislocation density bainitic matrix dispersed M / A islands to achieve, mainly through precipitation hardening a large number of dispersed titanium, niobium precipitates dislocation pinning to achieve.