Quenched And Tempered Steel Bar
Quenched and tempered steel bar is produced by quenching and tempering which is one kind of heat treatment to get high mechanical properties and hardness. Our advantages and more services of quenched and tempered steel bar includes:
1) Wide range of diameters from 10mm to 100mm
2) Customized Length from 100mm to 12000mm
3) Good surface roughness: 0.4um to 1.5um
4) Good straightness: 0.5mm/m to 2mm/m
5) Good roundness: 80% of diameter tolerance
6) Diameter tolerance: -0.02mm to -0.06mm/h9, h10, h11
7) Matched further processing: Grinding, polishing, straightening
8) Anti-rusty package
9) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
10) Fast delivery time
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On February 5, the Central Meteorological Observatory released information that in the coming days, strong winds will affect the safety of sea navigation from west to east and from south to north.
The China Maritime Search and Rescue Center immediately requested relevant units affected by strong winds and cooling to take effective measures to prevent wind and ice. The 24-hour emergency duty is directly affiliated to the MSA at all levels and immediately dispatched in the event of a dangerous situation; the communication with the meteorological department is enhanced to keep abreast of the latest meteorological information; external strong wind warning information is issued continuously, and the status of key vessels is continuously tracked; Weather forecasts, strict evacuation of coastal construction personnel; inspection teams and the Marine Department inspected the implementation of various wind and ice-resistance measures, and effectively implemented the “four preventions and one forbidden†(anti-wind, anti-collision, and anti- Freezing, fire protection, and bad weather are prohibited from sailing; work with the marine and fisheries departments, and ask them to work together to do a good job in the work of fishery ships to prevent wind and ice.
At present, a total of 68 professional salvage ships belonging to the rescue teams of the Beihai, Donghai, and Nanhai Rescue Bureaus and 16 salvage rescue teams are on duty to perform on-duty tasks; 17 joint tugboats from Yantai and Shanghai salvage bureaus are on standby to implement the Bohai Bay. Regional rescue mission. At present, the 20 ships of the Yangtze River Navigation Administration under the influence of strong winds and freezing have all prepared for wind and ice resistance.
In response to the recent strong wind-chilling weather, the Chinese Maritime Search and Rescue Center, the Ministry of Maritime Affairs, and the Department of Rescue and Salvage and other relevant units, in accordance with Xu Zuyuan’s request from the Deputy Minister of Communications, took timely measures in response to emergency plans to do a good job of windbreak and ice-resistance.
March 10, 2024