The S690Q vs S690QL steel tolerance range

Non-destructive flaw detection of steel plates is a test method for inspecting the S690Q vs S690QL surface and internal quality of the inspected parts without damaging the working state of the workpiece or raw materials. Commonly used S690Q vs S690QL steel plate flaw detection methods include: X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetration flaw detection, eddy current flaw detection, gamma-ray flaw detection, fluorescent flaw detection, color flaw detection and other methods. Physical flaw detection is non-destructive flaw detection without any chemical changes.

The main competitive means adopted by major domestic ports are to expand ports, build deep-water berths and channels, improve service quality to reduce the comprehensive cost of customers, and at the same time, to improve competitive advantage, we should also take appropriate measures to reduce relevant costs and prices.

The Performance requirements of low alloy structural steel, S690Q vs S690QL:(1) High strength: generally, the yield strength is above 300Mpa.(2) High toughness: the elongation is required to be 15% - 20%, and the room temperature impact toughness is greater than 600kJ/m ~ 800kJ/m. For large welded components, higher fracture toughness is required.(3) Good weldability and cold forming property.(4) Low cold brittle transition temperature. (5) Good corrosion resistance.

Jspl announced plans to build a 2.5-million-ton-a-year S690Q vs S690QL steel plant in the ramga region of the Indian state of Jharkhand. It is reported that the company has a wire mill, a bar mill and a steel service center in the region. The new steel plant is expected to be put into operation in two to three years. The completion of the new S690Q vs S690QL steel plant will be conducive to its integration and elimination of backward production capacity.