Failure assessment was made on cylindrical pressure vessels containing longitudinal weld misalignment performing finite element analysis (FEA) utilizing the Ansys software package. A 20° section of the cylindrical shell wall was modeled utilizing the plane strain element (plane 182) with the longitudinal weld in the centre of section. The weld misalignment was introduced by shifting the position of the cylindrical section on one side of the weld relative to the other section. Failure pressure estimates from FEA based on the global plastic deformation are found to be in good agreement with existing test results on vessels made of Afnor 15CDV6 steel and maraging steels.

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news in steel

Higher-quality plate surfaces and enhanced production

Danieli has been awarded a contract by PAO Severstal for the upgrade of plate mill 2800 at Cherepovets (Russia), in order to improve plate surface quality and increase production volume.

Total Strengthens Its Presence in the Industrial Lubricants Market

Total Lubrifiants, a leading player in the global lubricants market, announces the acquisition from Houghton International of its aluminum hot rolling oil (AHRO), steel cold rolling oil (SCRO) and tinplate rolling oil (TPRO) activities in the North American and European Economic Area markets.

Steel Dynamics, Inc. has awarded SMS group an order covering the supply of a complete steel production line for its Sinton location in the state of Texas.

Steel Dynamics Inc. (SDI) has awarded SMS group an order for the supply of a complete steel production line, from the steelworks to the CSP® plant and from the cold rolling mill to the galvanizing line for its Sinton location in the state of Texas.

Wirerod Mill modernization at Baotou Steel, China

Baotou Steel Group Co. Ltd. in China selected Danieli to modernize its 600,000-tpy wirerod mill. The key equipment to be supplied will be a new, four-pass TMB high-speed finishing block to produce smooth-wire from 4.5 to 26 mm diameter, and rebar-wire from 6 to 16 mm diameter at a maximum speed of 110 mps.