What factor can reduce the working load limit of a chain?

Kinks in the chain and temperature fluctuations both play a significant role in affecting the working load limit of a chain.

Kinks create localized stress points where the material can weaken, leading to an increased risk of failure under load. A kink compromises the integrity of the chain, making it less capable of supporting its rated weight capacity.

Similarly, temperature fluctuations can impact the material properties of the chain. High temperatures might weaken the chain's material structure, while extreme cold can make the material more brittle. Both conditions can lead to a reduction in the chain's ability to handle its designated load safely.

Therefore, recognizing the impact of these factors is essential for ensuring safety and reliability when using chains in various applications. Proper maintenance and regular inspections can mitigate these risks, but it’s crucial to be aware of how kinks and temperature changes can diminish a chain's working load limit.