STUD AND BOLT.
Stud bolts, a term used for cut-to-length all thread rod. Used for bolting together flanges, anchor bolting, as well as general fastening. Studs provide the ability to obtain much more accurate torque values because the studs don’t twist during tightening as do bolts. Because the studs remain stationary during nut tightening, the studs stretch in one axis alone, providing much more even and accurate clamping forces
Stud bolts for a flange connection will be given by the number of bolt holes in a flange, diameter and length of bolts. Because it is dependent of flange type and Pressure Class of flange.
Stud Bolt length are defined in ASME B16.5 standard. The length in inches is equal to the effective thread length measured parallel to the axis. From the first to the first thread without the chamfers (points). First thread defined as the intersection of the major diameter of the thread with the base of the point.
Stud and Bolt XYLAN (PTFE) material in grades ASTM A325, A193, A193M, B7 is a specification from the ASTM International that primarily govern. B5 5% Chromium; B6 12% Chromium; B6X S 41000; B7 Chromium-molybdenum steel; B7M Chromium-molybdenum … “ASTM A193 / A193M – 16 Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature.
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