Production method of low-cost X52 pipeline steel and pipeline steel
A production method and technology for pipeline steel, which are applied to the production method of low-cost X52 pipeline steel and the field of pipeline steel, can solve the problems of increased production cost, high price of alloying element Nb, etc., and achieve the effects of strong adaptability and simple production process control.
Active Publication Date: 2014-02-12
攀钢集团西昌钢钒有限公司 +1
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The invention provides a production method of a low-cost X52 pipeline steel and a pipeline steel. The production method comprises the following steps: desulphurization, converter smelting and continuous casting are conducted on molten iron to prepare a pipeline steel continuous casting billet; the pipeline steel continuous casting billet is soaked to be at 1160-1200 DEG C, and roughly rolled for 3-7 times by a roughing mill to obtain an intermediate billet; the intermediate billet is finely rolled for 4-7 times by a finishing mill; the finely-rolled pipeline steel is quickly cooled to be at 550-610 DEG C at the cooling speed of 50-100 DEG C/s, and is rolled to obtain a pipeline steel finished product. No Nb is added to the low-cost X52 pipeline steel. Through the adoption of the production method of the low-cost X52 pipeline steel, the production cost of the X52 pipeline steel can be lowered, the production technique control is easy, and the adaptability is high.
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Property | Measurement | Unit |
Thickness | 230.0 | mm |
Thickness | 200.0 | mm |
Thickness | 10.0 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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