Future research directions of q345b hot rolled steel plate

q345b hot rolled steel plate, Q690CF steel plate, also known as CF (CrackFree) steel in the world, is a kind of steel with low carbon equivalent, low PCM value and excellent welding function. It is generally believed that there is no crack in welding without preheating or under low preheating conditions. In order to further improve Q690CF steel strength, TMCP and microalloying skills are also required.

Winning the battle against pollution is a major political task. The Department of Ecology and Environment of Henan Province has issued the "Precise and Scientific Implementation Plan for Special Actions for the Prevention and Control of Air Pollution in Autumn and Winter". The "Plan" clarified the province's environmental air quality "consolidation, optimization, and improvement" governance goals, and proposed the reduction of coal combustion, industrial pollution control, diesel truck pollution control, urban and rural non-point source pollution control, and pollution weather response. The 10 key tasks have laid the foundation for the improvement of air quality during the 14th Five-Year Plan.

According to the different manufacturing processes, there are hot rolled steel pipes and cold drawn q345b hot rolled steel plate seamless steel pipes. BBN sells seamless pipes of different sizes, weights and grades. Customers can choose between black q345b hot rolled steel plate line pipes and galvanized line pipes. From 2-3/8" to 24", steel grade A, B, X42, X80.

In the first quarter of 2020, the output of EU steel pipe industry decreased by 13.3% year-on-year, but it is considered to be flexible due to its close connection with the q345b hot rolled steel plate construction industry. However, demand for large welded pipes is expected to remain weak in the oil and gas industry. In 2020, the steel consumption of steel pipe industry will account for 13% of EU q345b hot rolled steel plate steel consumption market. Uestf predicts that in 2020, the output of steel pipe industry will continue the downward trend of 2019, with a year-on-year decrease of 19.4%, and a rebound of 9.8% in 2021.