What is the difference between 07Cr2AlMoR and 07Cr2AlMoRE steel plate

What is 07Cr2AlMoRE steel plate?
07Cr2AlMoRE steel contains carbon, chromium, aluminum, and other molybdenum and rare metals. It is a rare earth alloy steel. 07Cr2AlMoRE is a steel plate for boilers and pressure vessels. The delivery form of 07Cr2AlMoRE steel plate is normalizing and tempering.

Chemical composition of 07Cr2AlMoRE steel plate:
C 0.06, Cr 2.19, Al 0.365, Mo 0.38, S 0.006, P 0.013, RE 0.013

07Cr2AlMoR is one of the three new grades (07Cr2AlMoR, Q420R, 12Cr2Mo1VR) added to GB713-2014, and the thickness of 07Cr2AlMoR steel plate is between 6-60mm. The delivery status of 07Cr2AlMoR steel plate is normalizing and tempering. 07Cr2AlMoR steel is smelted by oxygen converter or electric furnace, and shall be refined outside the furnace

Chemical composition of 07Cr2AlMoR steel plate:
C ≤0.09, Si 0.2-0.5, Mn 0.4-0.9, P ≤0.02, S ≤0.010, Ni ≤0.3, Cr 2-2.4, Mo 0.3-0.5, Cu ≤0.3, Alt 0.3-0.5