KU 4
Highly wear resistant elevator and conveyor chains, marked KU 4, produced acc. DIN 764 / 766, made of age resistant special manganese chain steel, bundled in matched pairs, surface hardness more than 800 HV measured 0,25 mm below the surface, carburizing depth HTÄ 0,1d ± 0,01d, hardening depth EHT at 0,06d more than 550 HV up to 28 mm-ø, 30 mm-ø and bigger at 0,05d more than 550 HV proof strength 125 N/mm2, breaking strength 250 N/mm2.
KU 5
Highly wear resistant elevator and conveyor chains, marked KU 5, produced acc. DIN 764 / 766, made of age and corrosion resistant chromenickel-
alloyed super-refined steel, bundled in matched pairs, surface hardness more than 800 HV measured 0,25 mm below the surface, carburizing
depth HTÄ 0,1d ± 0,01d, hardening depth EHT at 0,06d more than 550 HV up to 28 mm-ø, 30 mm-ø and bigger at 0,05d more than 550
HV, proof strength 150 N/mm2, breaking strength 300 N/mm2.
The use of chains acc. DIN 766 for elevators is managed in DIN 5698-1. |
