What is the value of normalized CCS EH36 drilling vessel steel yield strength

Penetration testing technology is only suitable for detecting surface defects. It uses penetrant to apply on the surface of the normalized CCS EH36 drilling vessel steel steel plate, then wipes the excess penetrant with the cleaning solution, and then smears the developer. The penetrant remaining in the defect is adsorbed by the developing material, so as to observe the shape of the defect and determine the type of defect. This normalized CCS EH36 drilling vessel steel method requires multiple wipes before and after the inspection, the process is more cumbersome, and can not detect internal defects and rough and dirty steel plates.

Steel is the main raw material for shipbuilding and marine engineering structure construction, accounting for 20% ~ 30% of the construction cost of hull and marine engineering. The steel normalized CCS EH36 drilling vessel steel products involved mainly include steel plates and section steel (marine bulb flat steel, H-beam, angle steel, etc.), casting and forging steel and supporting welding materials, etc. Among them, the amount of steel consumed for hull construction accounts for about 60% of the total ship mass, and sheet metal accounts for about 88%.

General Administration of Customs: China's normalized CCS EH36 drilling vessel steel and so on steel export in December was 4.684 million tons. According to data released by the General Administration of Customs on Tuesday, China's steel imports in December 2019 were 1.483 million tons, and the total imports in 2019 were 12.304 million tons, down 6.5% from 1316.6 in 2018. China's steel export in December 2019 was 4.684 million tons, and the annual export volume in 2019 was 64.293 million tons, 7.3% less than 69.335 million tons in 2018.

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