Pipeline stress range coefficient
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The pipeline stress range coefficient takes into account the adjustment of the allowable stress range under fatigue conditions; why can it be greater than 1? Seeking advice
A Stress Range Reduction Factor (usually denoted by k) greater than 1 indicates that the design permits a larger stress range under fatigue conditions. This may be because the pipeline material, design, or operating conditions are considered to have higher fatigue strength, or because the pipeline system is designed to operate at a lower number of fatigue cycles than standard. In other words, the designer may trust that, at a specific safety factor, the pipeline will maintain its integrity and functionality even under high stress levels. .