According to ASME B30.9, the design factor for alloy steel chain slings shall be a minimum of?

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Multiple Choice

According to ASME B30.9, the design factor for alloy steel chain slings shall be a minimum of?

Explanation:
The design factor concept is the safety margin used to determine a sling’s working load limit from its strength. For alloy steel chain slings, ASME B30.9 requires a minimum design factor of five. This means you divide the chain’s minimum breaking strength by five to get the working load limit, accounting for real-world conditions like shock loads, wear, and misalignment. So five is the correct minimum. A value of four would not meet the standard, while six would be more conservative than required but still acceptable as a higher margin.

The design factor concept is the safety margin used to determine a sling’s working load limit from its strength. For alloy steel chain slings, ASME B30.9 requires a minimum design factor of five. This means you divide the chain’s minimum breaking strength by five to get the working load limit, accounting for real-world conditions like shock loads, wear, and misalignment. So five is the correct minimum. A value of four would not meet the standard, while six would be more conservative than required but still acceptable as a higher margin.

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