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What is the difference between cold rolled and cold drawn?
The technological is different. Cold rolling mill has large single pass deformation and slow production rhythm. The cold-drawn single-pass deformation is small, it needs to pass through multiple-pass annealing, pickling and lubrication, the process is cumbersome, and the cost is higher than cold ...Read more -
NDT equipment
The most characteristic of NDT equipment do test without damage to the specimen material, the structure of the premise, so the implementation of non-destructive testing, the product inspection rate can reach 100%. However, not all projects need to be tested and indicators can be carried out non-d...Read more -
Oil and gas pipeline deformation detection technology
Oil and gas pipeline deformation detection technology 1 caliper detection technology GM technology is mainly used to detect pipeline geometric distortion caused by external forces to determine the specific location of the deformation, and some use of mechanical devices, some use magnetic inductio...Read more -
Offshore pipeline
Offshore pipeline is through a closed pipeline to transport large amounts of oil pipeline on the seabed, which is a major part of the offshore oil (gas) field development and production system and currently the fastest, most secure, reliable and economic mode of transport of offshore oil and gas....Read more -
NDT of pressure pipeline
Surface pressure pipeline NDT method selection principle: magnetic iron pipe should be used in magnetic particle testing; non-ferromagnetic steel should be used in penetration testing. Delayed cracking tendency of welded joints, the surface should be non-destructive testing after welding cooling ...Read more -
Electro galvanished passivated
Chemical properties of zinc is lively, easily oxidized in the atmosphere darkens, and finally generate “white rust” corrosion galvanized after chromate treatment, covered with a layer of chemical conversion coating film on zinc, so that the reactive metal is in the passive state,This ...Read more -
China eyeing restart of ferrous scrap imports in H1 2021, says trade
China is likely to allow the resumption of ferrous scrap imports from early 2021, or at least no later than June, market sources close to the issue said Oct. 27. Chinese authorities banned such imports in July 2019 due to environmental concerns, but have been pushing for a resumption with stricte...Read more -
China’s daily crude steel output hits record high 3.09 mil mtday in September
China’s crude steel output hit an all-time high on a daily rate basis in September at 3.085 million mt/day, which annualizes to 1,126 million mt, S&P Global Platts calculated based on National Bureau of Statistics data released Oct. 19. Based on Platts’ estimated crude steel capacity in China...Read more -
Steel Bridge Installed for Transformation of Colorado Springs
A 250-foot pedestrian bridge that will connect America the Beautiful Park with downtown Colorado Springs was hoisted into the air, driven across the railroad using self-propelled modular transporters and placed onto its abutments earlier this week. This masterfully orchestrated event was complete...Read more -
China vows to speed up decision on new steel scrap import standards
China will speed up the formulation of new standards for steel scrap imports, an industry group said at a meeting, amid global uncertainty over Bejing’s plan to ban all solid waste imports by the end of 2020. China currently categorises scrap metals as solid waste, but has made some excepti...Read more -
Libya Edges Closer to Reopening Oil Sector
Libya moved closer to reopening its battered oil industry after the state energy firm said it would resume exports, though only from fields and ports that are free of foreign mercenaries and other fighters. The National Oil Corp. is ending force majeure — a legal status protecting a party t...Read more -
Canadian tariffs on U.S. products coming within days
Canada will retaliate within days against American aluminum tariffs, with plans to announce a series of counter-tariffs early next week. Officials in Ottawa and at the Canadian embassy in Washington confirmed previously threatened counter-tariffs will proceed by Wednesday. The government had said...Read more