Steel pipes for offshore platforms

Foreign offshore platform material number
S355G2+N,S355G3+N,S355G5+M,S355G6+M,S355G7+M,S355G7+N,S355G8+N,S355G8+M,S355G9+N,S355G9+M,S355G10+N,S355G10+M,S420G1+ M, S420G1+QT, S420G2+M, S420G2+QT, S460G1+M, S460G1+QT, S460G2+M, S460G2+QT.

As the country moves into the deep sea, a large number of offshore platforms have emerged, and the supply of domestic offshore platform boards has increased rapidly. The offshore platform boards are mainly used for the production of offshore oil and gas drilling, platform pipe joints and other structural parts; the United States ABS, France BV, the United Kingdom LR, Germany GL, Norway DNV, Italy RINA, Japan NK, China CCS, South Korea KR and other classification society certification, can do Z15/Z25/Z35 offshore platform steel plate R & D, Hunan Standard Steel Co., Ltd. successfully trial production Two 50/100 thick S460G2+QT steel plates, S460G2+QT/EQ43-EQ51/S355G10+N/A517GrQ/NVE690. The production process of EQ43-EQ51 and WDB620E was confirmed and optimized. A 177.8mm, 185mm, and 215mm thick A517GrQ steel plate was trial-produced and certified by ABS. The trial of S355G10+N was completed, and the thickness of 25-110 was specified. The steel plate test results are good, and the performance indicators can fully meet the standard requirements. Successfully commissioned NVE690 marine engineering steel plate and put it into mass production for delivery to customers. Expand the use of steel plates for marine engineering to replace imports. Developed 150mm grade A514GrQ high strength steel, which is the first in the country at the quenched thickness level. It has been applied to the offshore jack-up platform manufacturing and is currently certified by the American ABS and other classification societies.

Hunan Standard Steel Co., Ltd. can produce A517GrQ steel for offshore oil drilling racks. It started production in 2009 and is certified by a number of authoritative classification societies. In order to expand product production capacity and meet the market demand for large-thickness offshore platform rack steel, Hunan Standard Steel Co., Ltd. opened up a new heat treatment process route for the 177.8mm thick offshore platform rack steel A517GrQ and strived to improve the product's Production capacity. With the development of deep sea drilling in various countries, the rack steel with a thickness of 177.8 mm has become the internationally recognized main specification and is used to manufacture one of the most important components of a deep-sea jack-up offshore platform. A517GrQ produced by Hunan Standard Steel Co., Ltd. has reached the international advanced level.

The offshore platform leg plate is mainly made of DH36/EH36 and can be made of Z15/Z25/Z35 with a thickness of 8-200.