Grade X8Ni9 is a European standard low-temperature container plate, a steel plate containing 9% Ni, which is mainly used for the manufacture of low-temperature LNG storage tanks and belongs to low-temperature steel.
Standard: EN10028-4: 2017
Delivery status: delivery in normalizing plus normalizing plus tempering and quenching and tempering status
Heat Treatment of X8Ni9 Steel Platea. As the tempering temperature of X8Ni9 increases, the content of reverse transformation austenite in the steel increases, and the low-temperature impact toughness increases. At the same time, the matrix structure is purified, and the strength first increases and then decreases.
b. When tempering at 580℃, as the holding time decreases, the strength of the steel increases, while the plasticity and toughness decrease, and the plasticity is lower than the standard value; the tempering process of QLT heat treatment is 580℃×60min.
c. With the increase of tempering temperature of X8Ni9, the content of reverse transformation austenite in the steel increases, and the low-temperature impact toughness increases. At the same time, the matrix structure is purified, and the strength first increases and then decreases. When tempering at 580℃, as the holding time decreases, the strength of the steel increases, while the plasticity and toughness decrease, and the plasticity is lower than the standard value; the tempering process of QLT heat treatment is 580℃×60min.
Ultrasonic flaw detection
Ultrasonic inspection standards are implemented in accordance with JB/T4730.3, GB/T2970 or GB/T28297, and the inspection standards and levels should be indicated in the contract.
Main properties of X8Ni9 steel plate
The main characteristics of X8Ni9 steel are high nickel content, high purity, high strength, high low temperature impact toughness, and good welding performance.
Are you also interested in further steel processing (machining)?
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
Fabrication and Machining Service24h Technical support
