SA353 American standard cryogenic vessel plate, corresponding to 06Ni9DR is -196 degrees low temperature pressure vessel steel plate, the implementation standard GB/T3531-2014, quenching and tempering state
06Ni9DR because the Ni content of the steel plate is about 0.9%, it is also called 9 nickel steel or 9Ni steel
SA353/06Ni9DR steel plate fixed rolling: Wugang Xiangyang
SA353 pressure vessel with secondary normalizing plus tempering 9% nickel alloy steel plate, this steel has good toughness and high strength at very low temperatures, and compared with austenitic stainless steel and aluminum alloy, it has a small coefficient of thermal expansion, good economy, the lowest use temperature can reach 196 °C, since 1960 through research to prove that it can be used safely without post-welding stress relief heat treatment, 9% Ni steel has become one of the main materials used to make large LNG storage tanks.
The main characteristics of steel are high nickel content, high purity, high strength, high low temperature impact toughness, and good welding performance. Through research and development, the steel can achieve the following performance indicators: 9% Ni steel: ReH≥585MPa, Rm = 680~820MPa, A≥18%, -196°C, AKv(T)≥150J, AKv(T)≥80J (EU standard).
Heat treatment and heat treatment changes: X7Ni9 (06Ni9DR) welding technology X7Ni9 (06Ni9DR) where to buy X7Ni9 which 3.1, X7Ni9 With the increase of tempering temperature, the content of reversed austenite in the steel increases, the low-temperature impact toughness increases, and the matrix structure is purified, and the strength first rises and then decreases
2024-06-04
2024-06-04
2024-06-04
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