X8Ni9 European standard cryogenic container plate, X8Ni9 steel is equivalent to what grade in China,

X8Ni9 European standard cryogenic container plate, X8Ni9 steel is equivalent to what grade in China,

x8ni9 European standard cryogenic container plate, x8ni9 steel is equivalent to what grade in China, x8ni9 steel plate fixed rolling
x8ni9 is a European standard cryogenic container plate, containing 9% Ni steel plate, mainly used for the construction of low-temperature LNG storage tanks, belonging to low-temperature steel.

X8Ni9 steel plate fixed rolling: Wugang Xiangyang

X8Ni9 steel plate heat treatment: with normalizing plus normalizing plus tempering and quenching and tempering
state
X8Ni9 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.

X8Ni9 steel plate chemical composition analysis

grade: X8Ni9

X8Ni9 steel plate carbon content C: ≤ 0.10

X8Ni9 steel plate silicon content Si: ≤ 0.35

The manganese content of X8Ni9 steel plate Mn: 0.30-0.80

The phosphorus content of X8Ni9 steel plate P: ≤0.020

The sulfur content of X8Ni9 steel plate S: ≤0.005

X8Ni9 steel plate nitrogen content Ni: 8.5-10.0

X8Ni9 steel plate molybdenum content Mo: ≤0.10

X8Ni9 steel plate vanadium content V: ≤0.05

b, 580 °C tempering, with the decrease of holding time, the strength of the steel increases, plasticity, The toughness is reduced, and the plasticity is lower than the standard value; The tempering process of QLT heat treatment is 580°C×60min.

x8ni9 is mainly used in the manufacture of standby deethanizers, CO2 absorption towers, medium-pressure flash towers, coolers, deethanization towers, reabsorption towers, compressor casings, propane cryogenic storage tanks, reactors, heat exchangers, separators, liquefied gas tanks, nuclear reactor pressure shells, boiler drums, nuclear power equipment, steam turbines, coolers, chemical spherical tanks, marine equipment, etc.