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What is Flange Bolt Torque Specifications Chart about?

This document provides torque values for flange bolting of various sizes based on material standards ANSI/API 6A/ISO 10423 and ASTM A193 and A320. It lists bolt diameter, tension capacity, and recommended torque values using coefficients of friction for plain and PTFE coated bolts. It notes that the values are for general guidance only and that accurate tension is difficult to attain using torque due to variability in friction. Field measured tension should replace torque in critical applications.

Author

CastorNoroño

Language

EN