Test Conditions:
Chain Tested: NM720-CS, 6" Pitch
20 links, 10' total
   
Testing Procedure:
  NRG NM-720S chain links were tested using twenty (20) links per test assembly . The links are attached to the test fixture so load was applied to the outside barrel. A 250 lb. preload was applied and then the Load was applied at a constant crosshead speed of 0.2 inches per minute until failure.
    Setup
 
Test Results:
 Strand No. PSI x Factor Ultimate Load
 Strand No. 1 1580 x 4.13 6,525
 Strand No. 2 1500 x 4.13 6,195
 Strand No. 3 1500 x 4.13 6,195
 Strand No. 4 1520 x 4.13 6,278