The effect of nitrogen on steel performance is similar to that of carbon and phosphorus. With the increase of BV grade E traffic boat steel nitrogen content, the strength of steel can be improved, plasticity especially toughness can be significantly reduced, weldability becomes worse, and cold brittleness is intensified. Nitrogen with aluminum, niobium, vanadium and other elements can reduce its adverse effects, improve the performance of BV grade E traffic boat steel steel, can be used as an alloying element of low alloy steel.
Shipbuilding steel plates or offshore platform plates are used to make hulls, offshore oil production drilling, platform pipe joints and other structural parts; Our ship steel plates are nine classification societies certified( American ABS, French BV, British LR, German GL, Norwegian DNV, Italian RINA, Japanese NK, Chinese CCS, South Korea KR ). BV grade E traffic boat steel, These plates can be Z15 / Z25 / Z35. Our company stocks a large number of shipbuilding plates, BV grade E traffic boat steel, offshore platform plate steel in stock.
For the estimation in April and the second quarter, the estimation on March 16 is still valid, but the decrease in April is 10% higher than the neutral prediction. It is a conservative estimation based on 10% for the high probability event. In the second quarter, the output of overseas pig iron will be reduced by 11.67 million tons, affecting the demand for BV grade E traffic boat steel iron ore of about 1.84 million tons; in the first half of the year, the output will be reduced by 18.899 million tons, affecting the demand for iron ore of 32.13 million tons.
The head of the National Development and Reform Commission, He Lifeng, chaired a special meeting of the Office of the Leading Group for the Development of the Yangtze River Economic Belt. The meeting emphasized that the Yangtze River Economic Belt is the center of gravity and vitality of China's economy, and is of great significance to the overall economic and social development of the country. At present, we must focus on four tasks. The first is to make every effort to resume work and achieve production. The second is to make every effort to promote ecological environmental protection and restoration. The third is to strengthen project reserve work. The fourth is to improve the planning guarantee system.
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