Wire
Rope Grades
The most common grade of rope
today is called Extra Improved Plow Steel Grade (XlP®).
For most ropes, this will be the grade supplied. XIP
IWRC ropes have a 15% higher minimum breaking force
than Improved Plow Steel Grade (IPS), the former standard
strength.
Other grades of wire rope are
also available, including Extra Extra Improved Plow
Steel Grade (XXIP®).
Many equipment designers are specifying XXIP grade wire
rope for the operating ropes on modern higher-rated
equipment. They're taking advantage of its higher minimum
breaking force to help reduce total system weight. New
machines can be designed with higher ratings using smaller
diameter rope due to XXIP's higher strength. Minimum
breaking force of XXIP grade wire rope is 10% higher
than XIP grade. Ropes are available in all 3 grades,
Improved Plow Steel (IPS), Extra Improved Plow Steel
(XIP) and Extra Extra Improved Plow Steel (XXIP).