This International Standard establishes general principles for the care and maintenance, and inspection and
discard of steel wire ropes used on cranes and hoists.
This International Standard is applicable to those ropes used on the following types of cranes, the majority of
which are defined in ISO 4306-1:
a) cable and portal cable cranes;
b) cantilever cranes (pillar jib, wall or walking);
c) deck cranes;
d) derrick and guy derrick cranes;
e) derrick cranes with rigid bracing;
f) floating cranes;
g) mobile cranes;
h) overhead travelling cranes;
i) portal or semi-portal bridge cranes;
j) portal or semi-portal cranes;
k) railway cranes;
l) tower cranes;
m) offshore cranes, i.e. cranes mounted on a fixed structure supported by the sea bed or on a floating unit
supported by buoyancy forces.
This International Standard applies to rope on cranes used for hook, grabbing, magnet, ladle, excavator or
stacking duties, whether operated manually, electrically or hydraulically.
This International Standard also applies to rope used on hoists and hoist blocks.
In view of the fact that the exclusive use of synthetic sheaves or metal sheaves incorporating synthetic linings
is not recommended when single-layer spooling at the drum, due to the inevitability of wire breaks occurring
internally in large numbers before there is any visible evidence of any wire breaks or signs of substantial wear
on the periphery of the rope, no discard criteria are given for this combination.
ISO 4309:2010 Referenced Document
ISO 17893 Steel wire ropes — Vocabulary, designation and classification AMENDMENT 1
ISO 4309:2010 history
2017ISO 4309:2017 Cranes - Wire ropes - Care and maintenance, inspection and discard
2010ISO 4309:2010 Cranes - Wire ropes - Care and maintenance, inspection and discard
2008ISO 4309:2004/Amd 1:2008 Cranes — Wire ropes — Care, maintenance, installation, examination and discard — Amendment 1
2004ISO 4309:2004 Cranes - Wire ropes - Care, maintenance, installation, examination and discard
1990ISO 4309:1990 Wire ropes of cranes - Code of practice for examination and discard
1981ISO 4309:1981 Wire rope for lifting appliances — Code of practice for examination and discard