Chain products are sometimes exposed to harsh environments and conditions which can lead to damage to the product. The question arises when must chain be taken out of service and replaced with new chains? The following basic types of damage are listed below and products displaying these features should be removed from service: Bent or twisted links Deep gauges or surface damage can lead to crack formation and service failures Excessive pitting corrosion can act as stress rais

Why is service temperature such an important factor to consider in safety-critical lifting applications? Two possible changes in the steel, depending on the temperature, can take place when lifting products are subjected to heat. 1. As temperature increases, the chain strength will decrease. Example: On grade 8 chain, the following guidelines are given to compensate for this effect: ·For temperatures up to 200⁰C, no reduction in working load limit is required. ·For temperatur