Plumbing
Pipe Fire Hazard Red 3m
While not as sturdy as solid concrete, iron constructions have high structural integrity, requiring fewer support pillars.
Drops when destroyed
Iron× 1-2
Short Iron Pipe× 1
Where to find (3 POIs)
Hybrid Mining (tier 5), The Last Sunset Nursing Home (tier 5), Installation Blue Ridge (tier 4).
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.