Fabric Loader 0.12.12-1.18.1
fabric-api-0.46.1+1.18
TechReborn-5.1.0-beta.8
RebornCore-5.1.0-beta.8

Wondering if the IRTB blocks have had their blast resistance dropped/altered.

Created a TNT block encased in a square of IRTB, and it shattered the IRTB back to floating entities. Did a secondary test of it with vanilla Obsidian surrounding TNT block, and the Obsidian was untouched.

Looks like all metal blocks have the same hardness and resistance, regardless of what it is actually composed of