EN 10025-6 high strength steel S690QL+QT material equivalent astm grade

Focusing on the energy conservation and emission reduction objectives proposed by the municipal government, the company gives full play to the advantages of EN 10025-6 high strength steel S690QL+QT circular economy formed after the comprehensive completion and operation, and vigorously promotes the implementation of energy conservation objectives. Through measures such as energy saving, technological innovation and EN 10025-6 high strength steel S690QL+QT management strengthening, the energy saving target of annual reduction of added value energy consumption by 7%. It has made great contribution to energy saving of over completion.

EN 10025-6 high strength steel S690QL+QT surface cracks refer to the linear cracks on the surface of EN 10025-6 high strength steel S690QL+QT, which should generally be the same as the forging or rolling direction. Formation reason: it is mainly due to the hairline, hot crack and cold crack caused by surface over burning, decarburization, looseness, deformation and excessive internal stress during processing (forging, rolling, heat treatment, quenching and tempering), as well as the high content of sulfur and phosphorus impurities on the surface. Inspection method: EN 10025-6 high strength steel S690QL+QT surface cracks can be detected by naked eye observation, acid pickling, magnetic particle inspection, coloring inspection and metallographic method.

15CrMo alloy steel plate is pearlite structure heat-resistant steel, which has high heat strength (δb≥440MPa) and oxidation resistance at high temperature, and has certain resistance to hydrogen corrosion. Due to the high content of Cr, C and other alloying elements in steel, the hardening tendency of steel EN 10025-6 high strength steel S690QL+QT is obvious and the weldability is poor. 15crmo alloy steel plate is mainly used in petroleum, petrochemical, high-pressure boilers, etc.

TMCP process is an indispensable technology for our production of low alloy high strength wide and EN 10025-6 high strength steel S690QL+QT thick steel plates. TMCP process can produce steel with high strength and toughness without adding too many alloy elements and complex subsequent heat treatment. TMCP is a process that can save alloy EN 10025-6 high strength steel S690QL+QT and energy and is beneficial to environmental protection. A lot of our shipbuilding steel plates are produced by TMCP process.

S355NL steel plate is under EN10111 standard. We can regard EN 10025-6 high strength steel S690QL+QT, S355NL steel plate as Fine-grain structural steels, normalised rolled. S355NL steel plate is one mainly of Fine-grain structural steels, normalised rolled, The normalized rolled fine-grain structural steel S355NL is characterized by a minimum yield strength of 355 MPa, by good weldability and high resistance to brittle fracture, which is same with DIN:TStE355 and BS:55EE

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