@lightshadown temperature readings between printers may vary. So may melt zones of hotends. It all boils down to if the printing results meet the 3D printing expectations of the person running the printer or any potential customer or not.
@NathanielStenzel i have an e3d clone type specific for my printer and i can raise the temperature up to 300, i usually ran ABS from 250-260 and the results are fine, meabe its the brand, dont know but thats why im surprise when people use a lower temp dor ABS just that.
By the way, already checking an e3d clone with ptfe tube down to the heaterblock, dont think it can print abs but trying with PLA and PETG, will post results
@lightshadown I would suspect that the PTFE tube will deform if you get up to 250C. I forget the exact temperature though. All I know is that I baked a PTFE tube into deformity by raising the temperature too much instead of locating and removing a partial jam.
@NathanielStenzel dont worry would try only on pla and petg, according to what i have read 210-240 its a good range for a chinnese knok off