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Tightening torque for stud bolts in according to various ASTM standards. Flange Bolting Torque Table 1 The torque tables are built on specific assumptions regarding bolt and nut factor.
- Class 150
Length dimensional tolerances for all Stud Bolts.. length to...
- Class 150
Torque-Tension Relationship for ASTM A193 B7 Bolts and Studs. Clamp load calculated as 75% of the yield strength for the B7 specified in ASTM A193. Torque values calculated from formula T=KDF, where Coatings such as Teflon or Xylan offer extremely low coefficients of friction. Often we will experience K values around 0.12 or even lower.
Find ASTM A193 Grade B7 Stud Bolt Torque Chart at 100% of Yield, 70% Yield, 60% of Yield, 50% of Yield, 40% of Yield and 30% of Yield.
20 wrz 2017 · The stud bolt and nut torque chart shows the sequence to use, and the force to apply, to stud bolts used to tighten flanges (by flange class). The torque chart is for reference only and assumes properly lubricated ASTM A193 B7 stud bolts with ASTM A194 2H steel nuts.
Use Prevailing Torque All-Metal Nut chart if using this style of nut. = Nominal Diameter. = Clamp Load For J429 Grade 5 and 8, FNL Grade 9, A574, Class 4.6, 8.8, 10.9 and 12.9, the clamp loads are listed at 75% of the proof loads specified by the standard. For A307 Grade A, 75% of 36,000 PSI is utilized.
Torque values for 1/4 and 5/16-in series are in inch-pounds. All other torque values are in foot-pounds. Torque values calculated from formula T=KDF, where Coatings such as Teflon or Xylan offer extremely low coefficients of friction.
Torque-Tension Relationship for ASTM A193/A193M B7M & A320/A320M L7M Bolts and Studs Clamp Load Specified as 75% of Yield. Caution: All material included in this chart is advisory only, and its use by anyone is voluntary.
