Section R. 408.40837 - ChainsRule 837.
(1) Chains used for material handling shall be made of alloy steel.(2) A welded alloy steel chain shall have a permanently affixed tag showing the size, grade, rated capacity, and manufacturer's name.(3) If wear at any point of any chain link is more than that shown in table 2, then the chain shall be repaired or replaced. The repair shall return the chain to its rated capacity.(4) Employers shall not use alloy steel-chain slings with loads in excess of the rated capacities, such as working load limits, indicated on the sling by permanently affixed and legible identification markings prescribed by the manufacturer. TABLE 2
| MAXIMUM ALLOWABLE WEAR AT ANY POINT OF LINK |
| Chain Size (inches) | Maximum Allowable Wear (inch) |
| 1/4 | 3/64 |
| 3/8 | 5/64 |
| 1/2 | 7/64 |
| 5/8 | 9/64 |
| 3/4 | 5/32 |
| 7/8 | 11/64 |
| 1 | 3/16 |
| 1-1/8 | 7/32 |
| 1-1/4 | 1/4 |
| 1-3/8 | 9/32 |
| 1-1/2 | 5/16 |
| 1-3/4 | 11/32 |
Mich. Admin. Code R. 408.40837
1979 AC; 2004 AACS; 2013 AACS