API2HGr50 delivery status: steel is usually delivered in hot rolled or hot forged state. It can also be delivered in the state of heat treatment (annealing, normalizing or high temperature tempering). Annealing: The steel CCS A40 bulk ore carrier steel is heated to a suitable temperature and slowly cooled according to the heating time of different materials and specifications. Normalizing: Heat the steel plate to a suitable temperature and cool it in the air. Tempering: Keep the steel plate at an appropriate temperature for a long time while keeping it cool.
On November 9, 2020, the World Trade Organization (WTO) Safeguards Committee issued the Safeguards Investigation Circular submitted to it by the South African delegation on November 6, 2020. South Africa’s International Trade Management Committee makes decisions on the import of steel structure products including U, I, H, L and T Sections of Iron or Non-alloy Steel (U, I, H, L and T Sections of Iron or Non-alloy Steel). The safeguard measure is a negative preliminary ruling, and it is recommended to terminate the safeguard measure investigation in this case and not implement the safeguard measure.
The CCS A40 bulk ore carrier steel steel making furnace can only be used as primary refining, and the refining needs to be completed in the refining equipment outside the furnace, which is also called secondary refining. It is mainly through decarburization, desulfuration, denitrification and dephosphorization to improve the cleanness of the steel, to establish a chromium molybdenum low alloy steel with good oxidation resistance and high temperature strength, to remove unwanted harmful impurities from the steel, and to improve the CCS A40 bulk ore carrier steel internal quality of the steel.
In the whole steel structure and steel body, the medium and heavy plate is an important part, once the problem occurs, it is easy to fracture, collapse and occur explosion. So how to judge whether the medium and heavy plate, CCS A40 bulk ore carrier steel is of high quality? First of all, check whether there are cracks on the surface of the CCS A40 bulk ore carrier steel plate and how glossy it is. Secondly, to measure the thickness error of medium and heavy plate, it is better to use the instrument to measure the bending tensile value. Finally, observe the scale of the steel plate manufacturers, whether there are relevant qualification certificates, and how the production process is.
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