Hydrogen sulfide corrosion resistant hardened and tempered high-strength steel plate for offshore drilling platform and producing method for hydrogen sulfide corrosion resistant hardened and tempered high-strength steel plate

Abstract

The invention discloses a hydrogen sulfide corrosion resistant hardened and tempered high-strength steel plate for an offshore drilling platform. The steel plate consists of the following chemical components in percentage by weight: 0.13%-0.15% of C, 0.15%-0.35% of Si, 1.10%-1.30% of Mn, 1.20%-1.25% of Ni, less than or equal to 0.012% of P, less than or equal to 0.003% of S, 0.020%-0.050% of Al, 0.020%-0.030% of Nb, 0.030%-0.040% of V, 0.015%-0.02% of Ti, 1.00%-1.10% of Cr, 0.40%-0.50% of Mo, 0.0005%-0.0015% of B, less than or equal to 0.25% of Cu, and the balance Fe and inevitable impurities. A production method comprises the processes of heating, rolling and thermal treatment. The steel plate produced by the production method has the characteristics of being uniform in component and internally compact, has a good structure, good comprehensive properties, good hydrogen sulfide corrosion resistance and good welding performance, and the performances of the steel plate completely meet operating requirements of the hydrogen sulfide corrosion resistant hardened and tempered high-strength steel plate for the offshore drilling platform.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a hydrogen sulfide corrosion-resistant quenched and tempered high-strength steel plate for an offshore drilling platform and a production method. Background technique [0002] In recent years, with the rapid development of national economic construction, the demand for hydrogen sulfide corrosion-resistant quenched and tempered high-strength steel plates for offshore drilling platforms has become increasingly prominent, and the market demand for hydrogen sulfide-resistant quenched and tempered high-strength steel plates for offshore drilling platforms is increasing . For a long time, due to the lack of necessary production equipment and technical support, and because there is no domestic mature experience in the production of hydrogen sulfide corrosion-resistant quenched and tempered high-strength steel plates for offshore drilling platforms, it cannot meet the need...

AI Technical Summary

Problems solved by technology

For a long time, due to the lack of necessary production equipment and technical support, and because there is no domestic mature experience in the production of hydrogen sulfide corrosion-resistant quenched and tempered high-strength steel plates for offshore drilling platforms, it cannot meet the needs of the domestic market and seriously restricts the development of my country's national economic construction.