## Asme Bolt Torque Calculation

34-2004, paragraph 2. 20" if using a lubricant with a different K factor. Numbers appearing on bolt heads indicate 41 27 821 (1112) 1138 (1542) ASTM class 46 30 418 (566) 1119 (1516) 1547 (2096) * * Use 75% of the specified torque value for plated fasteners. Calculation. A possible second choice for the low yield strength bolt, in regard to added corrosion resistance, is the A193-B8MLN Class 1. Torque calculations are based on the simplified formula explained in the current version of ASME PCC-1, Appendix K. Select an option from the links below, or use the short cuts on the left. Most widely used static seals in industries are Gaskets or O-rings. standard bolt tightening torque table. Otherwise apply general torque specs according to bolt. The first time around tighten to approximately 1/2 of the final torque, and then repeat the sequence, tightening to the suggested torque limit. T=Fa/12(P/2*Pi+Rt*f/cos(a)+Rs*f), where. possible leaks related to ASME B16. inches per bolt load for complete circle lbs 5/16-24 Stainless Steel socket head cap screws, 1 inch long bolts inch od inch id sq inch projected area, insulator lbs axial force due to vacuum total axial force on insulator bolts ld Calculation of safety factor guarding against joint opening d major diam K torque coefficient Fi preload torque. Use our new torque calculator web tool below to determine a calculated torque value based on inputs relative to bolt type, size, lubricant/condition and load. and Thread Pitch Bolt Torque Specs in Newton Meters - Nm Dry Lubed Dry Lubed Dry Lubed 1/4-20 11. In many critical applications, confirmation and auditability of the residual load is a necessity. Seating and Sealing: By applying the higher initial seating torque to seat the un-marred HDPE faces, without gaskets, the final residual bolt torque (RBT) at the HDPE sealing stress is. Step 2 Calculate required bolt torque assuming that bolt preload tension stress is 0. Can anybody tell me the formulae for Torque calculation (if load & area is provided for Anchor Bolts). The flanged assembly must be fitted with a Klinger Maxiflex Spiral Wound , Style CRIR Gasket. These equations originate from ASME and ISO specifications for inch and metric threads, respectively, as well as materials and mechanical engineering concepts. Several factors affect how much tension occurs when a given amount of tightening torque is applied. Bolt Tightening. Given here is the bolt torque chart for the ASTM A307 bolts. ASME PCC-1 standard describes the torque to be used based on the size of the bolt. Flange Bolting Chart - ASME B16. So for all your customized bolting solutions and technical assistance with regards to tensioning & torque calculations using specially designed Tensioners + Sub-sea tensioners, Hydraulic Nuts, Torque Wrenches, Flange alignment and Bolt Shield Caps for any bolting application (land or offshore). Calculate nut rotation for a given bolt torque Introduction: During maintenance activities in a power plant environment, the plant engineer is often called upon to make decisions concerning bolts in bolted connections in a variety of situations. Head Bolts Torque to yield bolts are exactly what they sound like. FLANGE INSULATION KIT INSTALLATION AND TORQUE GUIDE RECOMMENDED PROCEDURE FOR INSTALLATION OF ELECTRICAL INSULATION MATERIALS All piping and piping components to be installed should be free of all foreign materials and construction debris. achieve a bolt stress level within the bandwidth maximum between minimum required and allowable bolt load. In 2010, ASME Standards & Certification published a much expanded edition of the standard reference, PCC-1-2010 Guidelines for Pressure Boundary Bolted Joint Assembly replaces the first, 2000 edition. Hexagon Nut and Bolt Sizes. Because the calculations specified in the torque chart below are offered as a guide only, it is the sole responsibility of any person using them to assume all risk. 3 or the ESM, unless otherwise noted. Preload, torque, joint stiffness, bolt stresses, and clamped part stresses are discussed. The partial objective of the ASME Appendices. 5) Flange imperfections, rotation and deflection are ignored. Bolt Torque Calculation for Flange. Head Bolts Torque to yield bolts are exactly what they sound like. The new publication reflects advances in gasket technology, bolting assembly procedures, and. The nature of the tolerance difference allows an ASME B18. Therefore for larger bolts very high torques are required and used of specialist bolt tensioning systems such as the "Superbolt multi-jackbolt" option should be considered. Flange Bolt-Up Bolting Torque Table 1. Tightening torque values are calculated from the formula. Install the extension as described in the right column - restart Sketchup and open this tool from the Sketchup Plugins menu. "This will help enhance customers' productivity and assembly process quality. Cross bolt torque tightening strategies for different flanges are shown in Figure 3. The standard 1/4" Maxi-Bolt comes with an overall length of 4 1/4", and the standard 3/8" Maxi-Bolt comes with an overall length of 6". For example, if two plates each 1 inch thick are connected by a bolt with a diameter (d) of 1 inch,. The bolted flange joint assembly (BFJA) guidelines described in this document apply to pressure-boundary flanged joints with ring-type gaskets that are entirely within the circle enclosed by the bolt holes and with no contact outside the circle. The clamping force on a bolt is defined as the compressive force a fastener exerts on a joint. 47 Series B(API 605) flanges are also available. wrench to the torque level which will achieve the specified tension • A sample of bolts representative of those to be used in the connections are tested to verifythat the correct tension will be achieved (RCSC 2000, AISC) 18 • F1852 bolts are twist‐off‐type tension‐control bolts • These bolts must be pretensioned with a twist‐. 99 in the App Store Disclaimer:. 1 Dimensions of Hex Bolts - Imperial units; US Hex Bolts - Metric - ANSI/ASME B18. txt) or read online for free. So as per ASME B16. The Nuts and Bolts of Specifying Fastener Torque. First, two 2. Part B covers flanged joints with contact outside the bolt holes. Unified screw threads and tolerances calculator was developed to calculate basic major, minor and pitch diameters of the external (bolt) and internal (nut) inch thread according to ASME B1. Flange Bolting Chart - ASME B16. 625 11 9,040 52 88 11,865 68 115 ── ── ── 0. 182 of Bickford for more information on the exceptions. The flanged assembly must be fitted with a Klinger Maxiflex Spiral Wound , Style CRIR Gasket. How to Calculate Bolt length for flanges Let'sFab How To Use ASME B16. Try our Torque Calculator to convert all the torque units. Stainless steels include both iron- and nickel-based chromium alloys. This is re-. 5 Pressure-Temperature rating tables. The proper tightening torque is stamped on the Hoist Ring. Threaded Fasteners: Torque-to-Yield and Torque-to-Angle By Bill McKnight All the original equipment manufacturers (OEMs) have fastener labs with lots of sophisticated equipment and well-educated people working on fastening issues. K Factor is a torque coefficient between bolt and receptacle. how can i calculate torque required to move the links??? so that i may select appropriate motors. The new publication reflects advances in gasket technology, bolting assembly procedures, and. This problem sometimes causes a conflict when the flange torque calculation of the minimum required torque value to resist hydrostatic end force at the maximum design pressure of the flange is larger than the maximum. Splines have the same failure mechanisms as keys: 1) shear or 2) bearing. Using Fluoropolymer Coated Bolts For Surface Applications. ASME PCC-2 - 2008 Repair of Pressure Equipment and Piping. Consult LGT Engineering for bolt materials not listed. 47 Series B(API 605) flanges are also available. 99 in the App Store Disclaimer:. Input Parameters Ψ Tightness factor - With a prestressed bolted connection, the distance between materials is undesirable (due to the bad quality of surface, for example) and this safety factor is introduced to prevent it. rotational-two hole: the alignment of piping or vessel flanges so that the bolt holes align with each other, allowing the fasteners to pass through perpendicular to the flanges. It should also be noted that the bolt torque required, to achieve the same bolt stress levels, increases greatly as the bolt size increases (torque = c. Variables such as friction, temperature and machining tolerance can all dramatically affect the residual load in a bolt after force (Torque or Tension) has been applied. Stress, strain & yield. FASTENER IDENTIFICATION AND TORQUE DATA 1. The nature of the tolerance difference allows an ASME B18. A "short form" equation for converting between torque and tension has been developed: T = K×F×D. Unfortunately, a torque wrench does not measure bolt tension accurately, mainly because it does not take friction into account. 47 Series B(API 605) flanges are also available. Stress in flange, bolts and gasket. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. RECOMMENDED ASSEMBLY TORQUES Class 10. Torque sensors, torque testers, reference torque tools and torque tools are calibrated with this torque balance. Manufacturer of ASTM A325 heavy hex structural bolts, check Dimensions of ASTM A325 Structural Bolts, best price of ASTM A325 Structural Bolts, ASME B18. The final result is that the oversized PD of the part will allow the NoGo gage to thread on (in) the part as long as the root is not shallower than this 25% offset of the major diameter on between the Go and NoGo gages. 47, there are Series A and Series B flange which do not share the same bolt hole sizes. Multiply torque values by a factor of "K / 0. Flange Bolt-Up Bolting Torque Table 1. Same torque method (a) Approximately the same type of torque wrench (b) Torqued from same element (bolt head or nut) b. DO NOT APPLY SHOCK LOADS. Torque Values – ASME B16. Popularly used in all assemblies, a standard hex bolt is a staple across the world. Contact LASCO Technical Services for additional information. But the actual clamping load is not very well defined, because the amount of friction is unknown. Procedure B. The Belleville will be in its flat position when the preload in the bolt equals the flat-load1 Since the spring will be clamped between the flat joint an d the nut, any additional torque applied to the nut will only stretch the bolt. The measure of a force's tendency to produce torsion or rotation about an axis, equal to the product of the force vector and the radius vector from. The ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, gives rules which are subdivided into ''Part A'' and ''Part B''. The bolted flange connection is then pressurized with Helium. API 602 - Gate Valves. 14 (minimum) ~ 0. contained in ASME B31. For High Strength Bolts-Tapped Hole depth need to be adjusted for material yield differences. The proposed formula of wall thickness calculation in this paper is based on the American Society of Mechanical Engineers (ASME) Section VIII, division 2, Boiler and Pressure Vessel Code (BPVC) instead of the ASME B16. Our clients include many of the major engineering organizations of the world. 5 weld neck pipe flanges, ASME B16. Higher loads (than F W) will. Install the extension as described in the right column - restart Sketchup and open this tool from the Sketchup Plugins menu. Standard manways have a pressure rating of 300 pounds. Minimum torque if scatter is +23% = 1,602 x 0. For a conventional bolt, ignoring the torque required to overcome friction when you tighten it, there is a linear relation between the amount of torque and the clamping load in the bolt. These bolt torque values are intended for use as guidelines only and are based on ideal conditions, perfect flanges, flange alignment & new well lubricated bolts/nuts according to the national boiler code, installed in accordance with the Central Plastics Company Flange Installations Guidelines. 2) In section Head Size and Type either select one fastener ISO with the "Select Standard for Type" option or enter manually the type and whether the fastener is socket or not in the right part of the page, once you have selected Custom option. Nuts are brass with a minimum tensile strength of 55,000 psi. Consult LGT Engineering for bolt materials not listed. The model uses the fastener principal stress amplitude in order to construct a singular multi-axial S–N curve from the conventional uniaxial S–N curve with zero mean stress of bolt along with some experimental data. So which is the right way to calculate the appropriate Bolt/Gasket and use the data to write the Spec?. The chart above is an approximate estimate of torque values and have not been validated for accuracy. Stainless steels include both iron- and nickel-based chromium alloys. This specification contains the equations used by the Acme/Stub Acme AutoProgram. 47 Flanges Dimension Chart. ] DOUBLE SHEAR STRENGTH OF BODY Lbs. Then test the shorter bolts in a mock joint with the DTI. Published in November of 2013, PCC-1 replaces the first edition, which was published in 2000. 0 METHOD OF CALCULATING STUD BOLT LENGTHS FOR TYPE 6B AND 6BX FLANGES 2. In this article, we only see about the Gaskets - Basics, Types, Working Principle, Calculation of bolt load. Use to determine Torque, Bolt Load and Percent Yield of Maximum Load of Bolts. TG Bolt Isolation Grommet Submittal Data The Kinetics Noise Control model TG Bolt Isolation Grommet is used primarily to fill the excess clearance in the anchor/bolt holes in equipment/isolator mounting plates/feet. $\endgroup$ – Ethan48 Apr 7 '16 at 13:03. 5 Extreme Bolt & Fastener can match the material of your flanges with easy bolting kits. Torque values are based on. Proposed ASME Gasket Factors Gasket Resources is a full service gasket manufacturer with test labs, technical support, in-field training and bolted joint failure analysis New gasket constants to replace the ASME Code m and y are currently being developed by the Pressure Vessel Research Council (PVRC) and ASME. 750 inch x 920. Where ASME flange design calculations indicate that flanges will be over stressed if a standard Class 150 spiral wound gasket is used, the LS gasket is designed to compress at significantly lower bolt load than standard Class 150 spiral wound gaskets, thereby maintaining flange stresses within allowable limits. If an air wrench is used make sure the pressure is set to the minimum. Loosening of the bolt may develop during use. i have made a biped model in solid works 2014. ; and p=bolt clamping load developed by tightening, lb. CLASS 300 RF ANSI B16. Typically 3 stages at 30%, 60% and 100% of required torque are used together with a check pass at 100%, resulting in a total of 4 stages. ASME calls out a major diameter for the NoGo gage , both ring and plug to be smaller by approximately 25% from the Go gage. Bolt torque, the amount of force required to tighten a bolt, is listed according either to the Society for Automotive Engineers (SAE), which uses U. Preferred Pipe Size Contact I. •Creating bolting calculations. The opposite I am the one that has to come up with the correct way of calculating and writing the Specification for Bolt Torque/Tensioning for Flanged PipingI could have worded it better sorry. ( fz cos +cos a - a fz tan tan A A 11 where T =Target Torque, Nmmm(in. If the torque were to increase further then the nut would accelerate. Controlled bolting techniques. The above Table is applicable only for ASTM A320 Grade B8, Class 2 and A193 Grade B8, Class 2 Stud Bolts. Especially, for the flat face flanges with large diameter and with fewer tightening bolts, this tendency becomes stronger. This is re-. Designing the fasteners and joints for better durability is very critical in automotive industry. The following design resources are for design screws and bolts for the proper torque, stress, strain, preload and other engineering critical design parameters. Included: High side primary valve 3” Kimray EZQ 3 FMT Bottom Works High side relief valve Mercer 9100 or Wellmark equivalent Low side relief valve Mercer 9100 or Wellmark equivalent. See ASME B16. Low-strength bolts are not permitted for flanges with ASME B16. But not all manufacturers provide consumers with torque specifications, especially for after-market additions. 0 490 Note: the minimum bolt tension shown (AS4100-1998) is approximately equivalent to the minimum proof loads shown in AS1252-1996. TG Bolt Isolation Grommet Submittal Data The Kinetics Noise Control model TG Bolt Isolation Grommet is used primarily to fill the excess clearance in the anchor/bolt holes in equipment/isolator mounting plates/feet. for screw conveyor components. Enter value, select unit and click on calculate. Clamp load calculated as 75% of the yield strength for the B7 specified in ASTM A193. A Division of Bray International, Inc. 47 standard ﬂanges and to respect provincial environmental standards. Experimental determination of the tightening torque can be established by measurement of bolt extension, strain gauges or by the use of a load cell embedded in the joint. Focused on carbon steel weldneck ANSI 16. Apply suitable axial tension It is best to do axial tension control for tightening screw, but ac-tually it is difficult to measure. 3 zink-plated: K = 0. Torque is relatively easy to measure with a torque wrench, so it is the most frequently used indicator of bolt tension. The B8MLN bolt is a more expensive bolt and should. Flange Bolt Torques The following charts indicate the approximate bolt torque required to seal flanged joints against internal pressure. This step can be tricky. A Division of Bray International, Inc.

[email protected] The smaller the bolt circle diameter is, the less flange movement tends to occur. 5 • Maximum working pressure according to ASME B16. affecting the load applied by the bolt or its strength at elevated temperatures, and if they tighten a heated bolt. The above Table is applicable only for ASTM A320 Grade B8, Class 2 and A193 Grade B8, Class 2 Stud Bolts. how can i calculate torque required to move the links??? so that i may select appropriate motors. per/inch (Inch) TPI 0. 18 depending on the lubrication and is based on the coefficient of friction that is used to determine the coefficient of torque. rtj flange torque specs nut chart ansi pipe bolt a values for common sizes,flange torque sequence chart bolt inspirational and wrench rtj specs,asme flange torque chart api bolt rtj,api flange bolt torque chart pdf standard elegant fine ansi,ansi flange torque chart pipe bolt child and family blog pdf,pipe flange torque chart stainless steel metric bolt hex. K Factor is a torque coefficient between bolt and receptacle. Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register. The torque corrseponding to the selected bolt stress can then be easily found by using equation O-2. 4) Assuming ASME PCC-1 bolting pattern is followed. • Providing technical support to drilling software users. This applies to clean and and dry parts. 5 • Maximum working pressure 10 bar (145 psi) • Friction factor µ = 0. 85 related to the utilization of a torque wrench for assembly, that was taken into account to determine bolt torque. Flange Bolting Chart - ASME B16. Controlling the torque applied to the clamp is an approach used by many biopharmaceutical manufacturers as a substitute. 15 •Target torque calculation according to ASME PCC-1 Appendix J. 3 Process Piping Guide Rev. Threaded Fasteners: Torque-to-Yield and Torque-to-Angle By Bill McKnight All the original equipment manufacturers (OEMs) have fastener labs with lots of sophisticated equipment and well-educated people working on fastening issues. The partial objective of the ASME Appendices. In this paper, formulas are developed for the calculation of the effective thread friction radius in fasteners, in order to determine the thread friction torque component. The three critical components within a bolted, flanged connection are the flanges, gasket, and bolts. Once the two-bolt side is to fully torqued the single bolt end shall be tightened to full torque. The output data is listed and designated according to the ASME design code, to help you verify the calculation results more easily. Each features a countersunk square neck with 80° head angle that locks into position as the nut is tightened, providing added strength and durability. Low-strength bolts are not permitted for flanges with ASME B16. ASME PCC-1 standard describes the torque to be used based on the size of the bolt. • System handover walk downs (SH1). Pipeng Pipeline Engineering Toolbox : 1614 Free Pipeline Engineering Calculators For Oil And Gas Pipeline Engineers. 5 standard flanges, using a limited range of bolt materials; selected gasket options and a fixed lubrication value - BoltUp introduces the power of. 47 Series A and Series B flanges. The below online ASTM A193 B7 Bolt Torque Chart provides tension, torque, TPI information against their corresponding sizes. face flanges. Get it for $3. 47 standard ﬂanges and to respect provincial environmental standards. Bolt stress calculation tool. 5 270 103 371 132 528 164 722 190 914 248 1339 303 1817 To convert kN to lbf: Multiply kN by 224. The torque corrseponding to the selected bolt stress can then be easily found by using equation O-2. Calculate nut rotation for a given bolt torque Introduction: During maintenance activities in a power plant environment, the plant engineer is often called upon to make decisions concerning bolts in bolted connections in a variety of situations. Made by Consolidated Devices. Since this is the area "A" in the P/A stress calculation, a bolt loaded in double shear will have the same ultimate strength as one loaded in simple tension. 1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. 2 methods on some of the alternative flanges, such as ASME B16. The B8MLN bolt is a more expensive bolt and should. *NOTE: Garlock's minimum recommended gasket stress for a 1/8" compressed non-asbestos (C. Included: High side primary valve 3” Kimray EZQ 3 FMT Bottom Works High side relief valve Mercer 9100 or Wellmark equivalent Low side relief valve Mercer 9100 or Wellmark equivalent. The output data is listed and designated according to the ASME design code, to help you verify the calculation results more easily. 750 inch x 920. , appear on the search result itself. Weld neck pipe flanges in stock include ANSI B16. 1-1989 specification. Dimensions and weights for ASME B16. (b) ASME Boiler and Pressure Vessel Code Section II material that also meet the requirements of the listed ASTM specification may also be used. 5 and ASME NM-1 as applicable. See the reference section for details on the methodology and the equations used. ft-lbs to nm = 0. Periodic inspection on all cranes and lifting equipment, this includes but is not limited to drilling equipment & tools, pedestal and overhead cranes, ROV/Dive spreads, fixed lifting equipment, lifeboats and life raft launch and recovery systems and loose lifting equipment. Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register. But not all manufacturers provide consumers with torque specifications, especially for after-market additions. Bolt Torque Calculation for Flange - Free download as Word Doc (. 3 or the ESM, unless otherwise noted. Bolt loosening may lead to fatal consequences, so bolt should be designed for factor 10 in safety point of view. Calculation of Bolt Torque for Flanged Joint Assembly Most failures of bolted joints are due to poor assembly and application of incorrect bolting torque. 20 was used in the calculation per ASME PCC-1. TorqBolt Inc. The following design resources are for design screws and bolts for the proper torque, stress, strain, preload and other engineering critical design parameters. bolt begins to stretch. RECOMMENDED ASSEMBLY TORQUES Class 10. DIN 580 - Lifting Eye Bolts Specifications. User is responsible for applying appropriate bolt loads to properly seat the gasket. 5 • Maximum working pressure 10 bar (145 psi) • Friction factor µ = 0. The team at Maxpro understands the importance of flange joint integrity and plant reliability. It is a function of the materials' frictional characteristics, which are based on surface finish, coatings and so on. Flange Stud Bolts are heavy profile hexagon head bolts with full or partial thread configurations. Additionally, the bolts and flanges must be robust enough to prevent warpage, distortion or separa-tion during service. 3M Dimensions of Hex Bolts - Metric units; US Machine Screws - Dimensions - Machine screw diameters; Whitworth Bolt Torques - Torque. What is a Flange Gasket ? Flange gaskets are used to create a static seal between two flanges faces, at various operating conditions, with varied pressure and temperature ratings. Many vehicle manufacturers use torque to yield bolts, especially on engines with aluminum heads and/or in conjunction with MLS head gaskets. Consider what happens if the coefficient of friction is 0. 4 and 8 Bolt Flanges. See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data. Alltorq Services Ltd is a supplier of hydraulic torque equipment rentals in Alberta and Western Canada. 2) An engine producing 320 horsepower at 5,000 rpm is producing how much torque?. The 1/4", and 3/8" Maxi-Bolts are usually manually set using a hand bolt setter, and tensioned using a torque wrench. •Creating bolting calculations. In this paper, formulas are developed for the calculation of the effective thread friction radius in fasteners, in order to determine the thread friction torque component. Bolt tightening sequence or torque sequence is defined in torque tightening procedure. Step 2 Calculate required bolt torque assuming that bolt preload tension stress is 0. Specify a Tightening Sequence: The majority of joints consist of more than one bolt and bring together surfaces that are not completely flat. Torque Specifications Recommended Torque in Foot Pounds (Newton Meters) SAE Grade 2 (No Dashes. : Torque and Tension in Bolts: Bolt, one of the most widely used fasteners in the industry, is usually tightened by applying torque to the head and/or nut. Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas: Unit conversion to assist international measurement definitions. ) K = Nut factor D = Nominal bolt diameter, mm (in. Torque values calculated from formula T=KDF, where. Measuring torque for nuts and bolts is crucial to the longevity of your engine. The torques given are based on using a 3mm thick 70 IRHD rubber gasket. 4) Assuming ASME PCC-1 bolting pattern is followed. Flange Bolting Chart - ASME B16. Increase torque values by 5% for unplated bolts. •Using flange management software to create work packs and input data. We will evaluate target bolt torque required for leak-proof tightening. Torque is the force used to tighten fasteners or the amount of rotational force that a fastener must be able to withstand before failure. Determination of bolt torque for ﬂanged connections C ontrolling the load is probably the most important criteria, together with suitable gasket selection for the application, to ensure a gas keted joint will seal properly. Nominal Pitch Minimum Bolt Tension Size Kn M16 2. The output data is listed and designated according to the ASME design code, to help you verify the calculation results more easily. The above calculations are based on the use of a ASTM A193 Grade B7/B16 bolt with a coefficient of friction of 0. The industry needs the best torque calculator in order to get the torque calculation. Preferred Pipe Size Contact I. The program packages provides the user with the strength calculation of pressure vessel components, as cylindrical, spherical and, conical shells, heads, plates and flanges according to ASME VIII, Div. The Bolted Joint Analysis calculator allows for stress analysis of a bolted joint, accounting for preload, applied axial load, and applied shear load. Low-strength bolts are not permitted for flanges with ASME B16. The first factor is the bolt's diameter. Increased cost. Calibration with torque balance needs skilled laboratory personnel, requires time and, since we switch from mass to force, can be influenced by vibrations and by changes of the gravitation constant g. They include bolt thread condition, thread cleanliness, previous usage of bolts, lubricants, and weather. US Bolts - Tensile Strength and Proof Loads - Tensile strength and proof loads SAE bolts; US Hex Bolts - Inches - ANSI/ASME B18. They even have their own professional association – The Bolting Technology Council – which holds meetings and. 1 power piping. 1, as well as the calculation of heat exchanger tube sheets according to UHX or TEMA. 20 was used in the calculation per ASME PCC-1. 5 flanges were routinely determined by considering just one or two of these primary components. Fluoropolymer Coated Bolt Torque. General Information on Torque Specifications The amount of torque applied to a bolt or nut determines the Clamp Load. There are many variables affecting the torque-tension relationship, such as human error, surface texture, and lubrication. The torque capacity per unit length of an SAE spline is based on a 1,000 psi bearing stress on the sides. Size S-279 Stock No. 14 (minimum) ~ 0. With the ANSI standard set, the calculation is performed in English units, with corresponding bolt dimensions also included. RECOMMENDED ASSEMBLY TORQUES Class 10. com The yield strength can be a governing factor in the design due to a fear of plastic deformation of the bolt when. 47B flanges. The measure of a force's tendency to produce torsion or rotation about an axis, equal to the product of the force vector and the radius vector from. How to CalCulate requIred t orque A common method of calculating the required target torque uses the formula below: T = (KDF) / 12 Where: T = Torque, foot pounds K = Nut factor (torque coefficient resulting from esti-mated coefficient of friction) D = Nominal diameter of the bolt, inches F = Tension, pounds Improved Torque Tension. While additional torque can maintain the pressure seal, bending strain across the HDPE flange adapter should be limited to prevent flange adapter fracture. bolt begins to stretch. General Information on Torque Specifications The amount of torque applied to a bolt or nut determines the Clamp Load. There are numerous conditions that can affect proper bolt tightening. 47 SERIES B Nominal Pipe Size NPS (inches) Outside Diameter of Flange (inches)(O. Calculate the shear stress using the formula F ÷ (d x (t1+t2)) if the bolt connects two plates where each plate is subjected to a force (F) in opposite directions. The above table is a guideline as to how much your bolts should be tightened. Calculate Bolt Yield and Torque for different bolt diameters, bolt grades and lubrication factors in seconds. Take note for ASME B16. API 602 - Gate Valves. 750 inch x 920. The codes and best practice require that the diameter of an anchor/bolt hole not exceed the diameter of the anchor/bolt by more. The industry practice has been to measure the amount of torque required to tighten the bolt, and then attempt to relate that torque to tension. 4) Assuming ASME PCC-1 bolting pattern is followed. Flange types are circular with inner bolt circle gasket flanges. A Division of Bray International, Inc. * The housing bolt pads must make metal-to-metal contact. The tightening method can be taken into account in the calculation (e. ASME PCC-1 standard describes the torque to be used based on the size of the bolt. •Manual bolt torquing. The Official HYTORC App gives you instant access to torque charts, safety and operational videos, product manuals, service center locations and our comprehensive bolt load calculator. According to the "Piping and Pipeline Calculations Manual" by Phillip Ellenberger, the ASME developed standard PICC-1 to describe the appropriate way to assemble pipes flanges. 20 was used in the calculation per ASME PCC-1. High strength bolt is the most common construction content in steel structure construction. • Flange dimensions according to ASME B16. The torque tables are built on specific assumptions regarding bolt and nut factor. Thanks and Definition of buttering from ASME Section IX, QW. "This will help enhance customers' productivity and assembly process quality.