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Xylan Coated Fastener Grade Comparison. Topcoats can be used with a variety of pre-treatments and primers to achieve varying levels of corrosion performance >5000 hours ASTM B117 salt spray resistance. Xylan 1070 : Organic solvent based, low friction coating for fasteners.
Bolt Materials: SA 449 (Grade 5) sizes above 1 inch thru 11/2 inch, SA 193B7M, SA 320L7M, SA 453660 A and B, SA 193B8 Class 2 sizes above 3/4 inch thru 1 inch. SA 193B8M Class 2 sizes above 3/4 inch thru 1 inch. Torque Values for Bolt Materials with Yield Strength from 50,000 to 65,000 psi.
The bolt is stressed up to the proofload value, and if there is no deformation, elongation, or fracture, then the bolt is deemed to have passed. For bolting specifications that do not have a published proofload, it is usually calculated at 92% of minimum yield strength.
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.
1 Φεβ 2005 · Download Torque Value Chart. Covering bolts on Wellhead Equipment, Valves and chokes, and loose flanged connectors.
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. = 0.15 for "lubricated" conditions and K = 0.20 for "dry" conditions. = Nominal Diameter.
19 Νοε 2016 · The various properties on the Xylan give excellent make up and brake out torque and reduce the need for high risk cutting torches or high cost bolt cutting when maintenance is required. Xylan 1014 in bolt coatings used for its good lubricity, chemical and abrasion resistance.
