For some reason, the Hardened Portable Tank from Thermal Expansion does not normally craft into the Low Pressure Tank from Advanced Rocketry. You must first place the tank, then break it and pick it back up, at which point the recipe will work as normal. Probably an NBT issue.

Likewise, if you're viewing the recipe for the Low Pressure Tank and hit the "view recipe" JEI key over the Hardened Portable Tank, it will display no results -- probably for the same reason.

Lastly, while the Hardened Portable Tank will work in the recipe for the Gas Charge Pad, but JEI says it won't. It appears broken right up until you actually place it on a crafting table, whereupon it works fine.

I had the same issue crafting the reinforced portable tank. Placing and breaking the tank adds a 3rd nbt entry that allows it to be used in crafting.

Same issue, but placing and breaking did not help.

fixed by cf56665

https://imgur.com/a/S9CSyb7