Asme Bolt Torque Calculation

The first factor is the bolt's diameter. 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. 5 Extreme Bolt & Fastener can match the material of your flanges with easy bolting kits. cause a rapid bolt failure. Stainless Steel Stud Bolt and Nut Size Chart | SS Stud Bolts | Weight of Stud Bolts: Chart ASME B16. Dimensions from Stud Bolt are defined in the ASME B16. 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. 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. 34 [9] calculations, we find the bolt size for the body and top cover joint and as well as the Body bottom cover joint but now we cross-reference calculation with ASME SEC VIII Div. High strength bolt is the most common construction content in steel structure construction. Higher loads (than F W) will. Consider what happens if the coefficient of friction is 0. 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. com Torque is the force used to tighten fasteners or the amount of rotational force that a fastener must be able to withstand before failure. To calculate the nominal tensile strength in newtons per millimetre squared you can multiply whole number before the decimal point by a hundred. • Providing technical support to drilling software users. Overtightening of flanges can lead to cracking of plastic fittings, so care must be taken to ensure the correct torque is applied. Special verifications like nominal tighten torque, bolt forces, maximum flange rotation or minimum usage ratio of the bolts can be provided additionally. The 10 tool range offers multiple tool variations per bolt size, only 5 tools are required to suit bolt sizes from 3/4” to 4” (M20 to M100). The table below lists a typical range for the "K Factor" as well as the values used in calculating the RepairEngineering Bolt Torque Chart. This applies to clean and and dry parts. On the go? Download our Bolt Load Calculator app instead. There are many variables affecting the torque-tension relationship, such as human error, surface texture, and lubrication. Bolt loosening may lead to fatal consequences, so bolt should be designed for factor 10 in safety point of view. 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. how can i calculate torque required to move the links??? so that i may select appropriate motors. Know your torque meter better. 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. CAUTION: Tapped holes at neck locations DO NOT permit thru holes. Bolt Tightening 2 Bolt Tightening 2-1 Various Tightening Methods Various tightening methods 34 2-2 Screw and Torque Relation formula between screw and torque 35 2-3 Torque Coefficient (1) Formula of torque coefficient 36 (2) The torque coefficient is not stable 36 (3) Even when the torque is stable, axial tension may vary 36. Always consult the manufacturers instructions or engineering recommendations when making bolted connections. •Creating bolting calculations. 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. Set the torque wrench to the 70% torque value and repeat step 2. Flanges Calculator - Options. Get it for $3. Multiply torque values by a factor of "K / 0. At the minimum seating stress, both the gasket stress and the bolt stress are not ideal and the joint is susceptible to losing significant amount of bolt load with little relaxation, because how little the bolts got stretched. Most widely used static seals in industries are Gaskets or O-rings. It is a function of the materials' frictional characteristics, which are based on surface finish, coatings and so on. 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. The proper tightening torque is stamped on the Hoist Ring. ASME 2014 Pressure Vessels and Piping Conference That Affect Stud/Bolt Breakout and Assembly Torque (K-Factor) Centering Ring and Flange Facing in Calculation. The first factor is the bolt's diameter. You will find that the bolt stress may be in the low 20 ksi range, which is intolerable to me. The torque corrseponding to the selected bolt stress can then be easily found by using equation O-2. Inches are measured threads per inches. In general, 10 MPa (1500 psi) average gasket stress is targeted. • System handover walk downs (SH1). NOTE: Appendix "A" provides the method for calculation and determination of specified bolt torque at the required seating stress. In this article, we only see about the Gaskets - Basics, Types, Working Principle, Calculation of bolt load. Hexagon Nut and Bolt Sizes. Set the torque wrench to the 70% torque value and repeat step 2. w Fort Worth Gasket & Supply furnishes bolt sets with the above dimensions. 16 Note! - be aware that this is a rough calculation - in addition the accuracy of a torque wrench is normally no better than +-25%. 3 or the ESM, unless otherwise noted. All units are in inches. Multiply torque values by a factor of "K / 0. 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. Example Calculation Torque. Find Bolt Torque API Flanges related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Bolt Torque API Flanges information. You Will Learn To - Calculate the forces in bolted joints and establishing specific torque; calculate bolt area, stresses, component and overall joint stiffness. 6) Bolt torque values in above Tables are for reference only. Our testing capabilities can characterize a product’s torque properties under a variety of conditions. Part A covers flanged joints where contact between flanges occurs through a gasket located inside the bolt holes. Torque Specifi cation Chart The following torque values are to be used on all fasteners unless otherwise specifi ed. 15 •Target torque calculation according to ASME PCC-1 Appendix J. That should provide torque and tension values along with an average DTI gap. Tightening torque values from the formula T=KDP, where T= tightening torque, Ib. The values are stated in Inch pounds. Clicking sound and pulse in the handle alerts user when torque value is reached, preventing over-applying torque. At the minimum seating stress, both the gasket stress and the bolt stress are not ideal and the joint is susceptible to losing significant amount of bolt load with little relaxation, because how little the bolts got stretched. Clamp load (lb. 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. Various K Factors. The gasket seating surfaces should be free from tool marks, scratches, pits,. • Flange dimensions according to ASME B16. / Effects of scatter in bolt preload on the sealing performance of pipe flange connections under internal pressure (Case where the nominal diameter of pipe flange connection is 20"). For High Strength Bolts-Tapped Hole depth need to be adjusted for material yield differences. Flange Bolt Torques The following charts indicate the approximate bolt torque required to seal flanged joints against internal pressure. 1-2003 standard. Based on my previous posts you may familiar with grades of bolt, torque of bolt, torque calculations and slip factors. The B8MLN bolt is a more expensive bolt and should. 2 x Bolt Diameter (in. CALCULATION OF TARGET TORQUE FOR BOLTS (ASME PCC-1 ) The Target Torque required to tighten bolting. Reference ASME B16. cause a rapid bolt failure. CLASS 150 lb. 5 or ASME B 16. ASME PCC-1–2013 surface, achieved using a force of no greater than 10% of the maximum torque or bolt load for any bolt (see Fig. An = total (available) core bolt section (An)min, AB, min = minimum (required) bolt section At = contact area below screw head or nut Λ = stiffness coefficient of bolted assembly j = number of planes of contact in the bolted assembly (= number of assembled parts – 1) k = adherence coefficient ±I = spread range of bolt tightening device (%). Assembly Torque is the Standard Torque or Specified Torque, plus the Tare Torque. Note: *material callouts are JIS (Japanese standard) Basic data courtesy of Tohnichi Torque Handbook **The maximum to the minimum of the axial stress is considered as the dispersion of the torque coefficient. 5 Extreme Bolt & Fastener can match the material of your flanges with easy bolting kits. Guidelines for Pressure Boundary Bolted Flange Joint Assembly AN AMERICAN NATIONAL STANDARD ASME PCC-1-2010 (Revision of ASME PCC-1-2000). flange torque chart metric pipe. The B8MLN bolt is a more expensive bolt and should. ASME VIII is the most widely known and internationally recognised design code for pipeline flange calculations and ANSI B 16-5 is the most widely known design code for piping systems. Splines have the same failure mechanisms as keys: 1) shear or 2) bearing. The assembly gasket load above was determined according to the Exact Method (1) and does not consider the bolting efficiency of 0. 3 process piping, and ASME B31. Appendix references herein are to this Guide, not B31. The first factor is the bolt's diameter. A large material data base is included. Published in November of 2013, PCC-1 replaces the first edition, which was published in 2000. They even have their own professional association - The Bolting Technology Council - which holds meetings and. DANSMC BOLT TORQUE GUIDE Use as a Very Loose & Gooey guide only. 72 Elements of Mechanical Design This is a series spring calculation t d t d t d Usually torque the bolt until Proof Load is reached. Please forward any queries to: ryan. •Using flange management software to create work packs and input data. CLASS 300 RF ANSI B16. 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. A possible second choice for the low yield strength bolt, in regard to added corrosion resistance, is the A193-B8MLN Class 1. The B8M bolt has a carbon content of 0. For help using this calculator see Technical Help. The digit following the decimal point, multiplied by ten, gives you the yield stress ration, or the percentage ratio between the lower yield stress and the nominal tensile strength. 4 and 8 Bolt Flanges. Clicking sound and pulse in the handle alerts user when torque value is reached, preventing over-applying torque. 20" if using a lubricant with a different K factor. BoltUp is Hydratight's simple to use web based calculator, built upon the Informate calculation engine, providing reliable, repeatable bolt loads. *View the drilling template dimensions from ASME B16. ASME PCC-1, Guidelines for Pressure Boundary Bolted Flange Joint Assembly (BFJA), is a standard created and published by the American Society of Mechanical Engineers (ASME). Today, we start with the most basic concepts and take you to re understand the high-strength bolt, which may overturn your most basic. This calculator also can be used to check the self locking capability of lead screws by referring the load lowering torque. NOTE 2: The above-mentioned torque values are based on A193 B7 bolts with A194 2H nuts. See the reference section for details on the methodology and the equations used. Preferred Pipe Size Contact I. Stud bolts are inserted in the flange holes and tightened to seal a flanged joint. Calculate Bolt Yield and Torque for different bolt diameters, bolt grades and lubrication factors in seconds. 500 13 5,676 27 45 7,450 35 59 ── ── ── 0. 5 – ASME B16. Inch Threads Metric Threads References ASME B1. 6) Bolt torque values in above Tables are for reference only. The torque value is the necessary aspect for the bolt tightening. In the simple approach of ASME PCC-1, bolt stress is selected to achieve a desired target gasket stress per equation O-1. *NOTE: Garlock's minimum recommended gasket stress for a 1/8" compressed non-asbestos (C. This calculator also can be used to check the self locking capability of lead screws by referring the load lowering torque. 3 or the ESM, unless otherwise noted. So you're on your own. 5 Flanges Exporters Iran Iraq Metal Industries is a Professional steel flanges and forgings manufacturer in india, specialize in manufacturing Lap joint flanges / Loose Flange / LJ flange, steel valve, flanges bolts, steel flanges, steel forgings range of flange and forging types and sizes. follows ASME B16. Granted, these types of bolts are much larger than your M3 bolt, but 220 lbs is nothing. Then test the shorter bolts in a mock joint with the DTI. TORQUE SPECIFICATIONS for Nuts and Bolts - CF-112. The second method, (gasketed), uses a low gasket seating bolt torque applied ,to a soft elastomeric gasket, for lower pressure applications (like landfill gas collection or use with torque-limited PVC or fiberglass flanges), followed by the mandatory -torque 4 hours to 24re -. This load case is called single shear. The new publication reflects advances in gasket technology, bolting assembly procedures, and. 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. 3) Assuming maximum internal pressure follows ASME B16. ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering Journal of Applied Mechanics Journal of Biomechanical Engineering. You can also define your own calculation algorithms in the KISSsoft bolts report template. Torque calculations are based on the simplified formula explained in the current version of ASME PCC-1, Appendix K. Dimensions and weights for ASME B16. Due to the many factors that affect. standard bolt tightening torque table. Part B covers flanged joints with contact outside the bolt holes. 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. ASTM A453 High-Temperature Bolt with Expansion Coefficient. 18 cadmium-plated: K = 0. The second factor is. Free Resource Download Library: Quality Checklist, Torque Guide, A325/490 Torque/Tension Specs, Stud Bolt to Nut Chart, Square/Hex Drive Working Torque. Bolt Torque Torque is the turning force measured in foot-pounds (ft-lb) or inch-pounds (in-lb) applied to tighten (turn) the nut on a bolt. Contact LASCO Technical Services for additional information. The above calculations are based on the use of a ASTM A193 Grade B7/B16 bolt with a coefficient of friction of 0. Wingate Marshall Space Flight Center, Huntsville, Alabama. In compliance with the goal of the calculation, the different calculation codes can be used. Torque is relatively easy to measure with a torque wrench, so it is the most frequently used indicator of bolt tension. Imperial UN: (Imperial Unified National thread form) A standard that describes the shape of an internal or external thread using imperial inch dimensions. When the term hot bolting is used by the ASME and others, they specifically refer to de-pressuring the equipment, loosening the bolts and reapplying anti-seize so the proper K-factor value can be used in the torque calculation. 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. As ASME and ANSI are now conjoined, ASME/ANSI has become the most appropriate design code for all pipeline and piping systems. A possible second choice for the low yield strength bolt, in regard to added corrosion resistance, is the A193-B8MLN Class 1. •Hydraulic bolt tensioning. w Fort Worth Gasket & Supply furnishes bolt sets with the above dimensions. It might be calculated differently in your situation because of the multiple bolts used. 10M: Welded and Seamless wrought steel pipe: ASME B36. Flange Bolting Chart - ASME B16. Due to the lack of exact formulas in the literature, current practice uses the average value of the minor and major thread radii, as an approximation, for determining the. Control Structural Bolt/Nut/Washer combination of bolt length and grip used to select the black ASTM A325 bolt is suitable for reuse if the nut can ASTM A307 Bolts ASTM A325 Bolts - ENGINEERING. 9 ISO Metric Coarse Pitch Bolts & Screws Bolt Tension Recommended Corresponding to Assembly 65% of Proof Load Torque kN Nm 7. Techangle™ Torque Wrenches are truly revolutionary. The assembly gasket load above was determined according to the Exact Method (1) and does not consider the bolting efficiency of 0. ASME PCC-2 - 2008 Repair of Pressure Equipment and Piping. By combining the torque-angle curves with a few simple calculations and a basic understanding of the. Especially, for the flat face flanges with large diameter and with fewer tightening bolts, this tendency becomes stronger. ASTM: If you are working with F1554 anchor bolts on a regular basis, we strongly recommend purchasing a copy of the ASTM F1554 specification from ASTM international. March 19, 2016 By Sigma Fasteners. Each kit contains fasteners, nuts, washers and lock washers of the same material as your flange. Longer bolts are available at a minimal additional cost. GasketData (Sec1- (Converted)-1 20/7/06 8:22 pm Page 2 Index 2 Understanding Gaskets Section Page 1 Introduction 3 a What is a gasket? b Bolted Joint Assemblies. TORQUE SPECIFICATIONS for Nuts and Bolts - CF-112. Frequently used grades are A193 for thread rods and A194 for the nuts. 5 Pressure-Temperature rating tables. Can anybody tell me the formulae for Torque calculation (if load & area is provided for Anchor Bolts). Try our Torque Calculator to convert all the torque units. ft-lbs to nm = 0. First round – 30% of final torque (flange sequential order) Second round- 60% of final torque (flange sequential order) Third round – 100% of final torque (flange sequential order). They even have their own professional association – The Bolting Technology Council – which holds meetings and. The sequence of. Bolt Length w/ Bolt Length w/ Bolt To determine required Bolt To determine required Bolt Nut Size Length Add to Grip Length Weight of ASTM A325 or A490. The tightening torque for rigid or expansion bolts is calculated on the basis of the required bolt force in the installation state, which can be calculated from AD leaflet B7 or DIN 2505, as well as the bolt geometry and friction coefficients. I have designed and recommended lot of changes in terms of process and surface too for better life and joint integrity. ASTM A325 Bolts Coatings and plating as well as plain finished oil and tempered is available as required by the end user such as Zinc plating, Cadmium plating, Xylan ® coating, Dupont Teflon ® coating, Hot Dip Galvanized coating, Auge Antifrix ® coating, Sermagard ® coating and Niwat 1000 ® plating. 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. See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data. Flanges includes Lapped, Socket, Slip-On and Welding Neck flanges in its database of 600 design and sizes. Inline chevy 6 performance, Turbocharging, Custom parts, 12 bolt rebuilding. 300 SAE AS28431 You are buying a lightly used 3/4 Drive Torque Wrench. Same bolt head and nut type/size/material 4. Calculate torque for a flange is a balancing act of looking at both gasket stress and bolt stress. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. (a) The user is responsible for assuring that bolting material is not used beyond the limits specified in the governing code or regulations. 4) Assuming ASME PCC-1 bolting pattern is followed. The calculator also. 15 •Target torque calculation according to ASME PCC-1 Appendix J. A Division of Bray International, Inc. 5 lbs = 138 in-lbs = 11. Torque Method Reviewing the Characteristics of Fastening by Toshimichi Fukuoka Introduction Torque method, due to its easy operation, is the most widely applied fastening method for threaded components. D 1 = d - 1. The calculation is based on the axial forces balance between the bolt load, the resulting axial force due to the end thrust effect of the internal pressure and the reaction on the gasket. The nominal torque necessary to tighten the bolt to a given preload can be determined either from tables, or, by calculation using a relationship between torque and the resulting bolt tension. Larger Flange OD. 1 Appendix 2, and ASME III Div. User is responsible for applying appropriate bolt loads to properly seat the gasket. ASME VIII Div. The second method, (gasketed), uses a low gasket seating bolt torque, applied to a soft elastomeric gasket, for lower pressure applications (like landfill gas collection or use with torque-limited PVC or fiberglass flanges), followed by the mandatory re-torque 4 hours to 24-. 5-1988 standard. 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. 6) Bolt torque values in above Tables are for reference only. 1, standards for bores, washers, nuts etc. Important: the hexagon sizes shown in the tables should be used as a guide only. 1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head height and the shank length. flange torque chart metric pipe. Use of its content by anyone is the. HEAVY HEX NUTS ASSEMBLED. Most widely used static seals in industries are Gaskets or O-rings. General Information on Torque Specifications The amount of torque applied to a bolt or nut determines the Clamp Load. Granted, these types of bolts are much larger than your M3 bolt, but 220 lbs is nothing. This specification contains the equations used by the Acme/Stub Acme AutoProgram. Where this method trips up is when you try to calculate bolt stress using App. Note that the "K Factor" values used to calculate the RepairEngineering Bolt Torque Chart were picked somewhat arbitrarily. 5 • Maximum working pressure 10 bar (145 psi) • Friction factor µ = 0. Depending on the class of fit, a spline is able to accommodate axial movement along the shaft and still transmit torque. Contact LASCO Technical Services for additional information. 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. 1 Proofload is the published number that full size headed bolts are tested to. table 3 - suggested torque values and clamp loads for sae grades 2, 5, & 8 cap screws nominal diameter and tpi (inches) thread stress area (sq-in) sae grade 2 sae grade 5 sae grade 8 clamp load 60-90% proof (pounds) tightening torque (ft-lbs) clamp load 60-90% proof (pounds) tightening (ft-lbs) clamp load 60-90% proof (pounds) tightening (ft-lbs). (operated by Tupras) Daha fazla göster Daha az göster. B7 is required for flange joint material with nut factor of 0. FLG is the Red-Bag flange calculation software. 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. 0 is has been replaced with the new Gasket Calculator 6. First, two 2. Increase in equipment weight. 15 •Target torque calculation according to ASME PCC-1 Appendix J. But, how does the actual tension vary bolt to bolt? What if you use the same type of bolt? 6. The appendix provides two approaches to select appropriate bolt stress and hence torque. This is a nitrogen bearing, 316 stainless steel bolt with a lower carbon content of 0. Controlled bolting techniques. Series A is adapted from MSS SP-44, and type B is adapted from API605 as part of ASME effort to standardize the dimension of flanges. Additionally, the ASME code is the basis for the flange calculation in the European standard EN 13445, which is the standard for unfired pressure vessels. As the bolt is tightened, it is stretched (preloaded). 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. Bolt torque, Nm - #300 58 58 58 58 58 70 70 Table 4: Test conditions. By combining the torque-angle curves with a few simple calculations and a basic understanding of the. In view of the design of a prestressed bolt connection, various designs of contact surfaces have no substantial effects on the calculation itself and differ only in the amount of friction moment below the head (nut) of the bolt and hence in the amount of necessary tightening torque. 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. 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. 5 Flanges Exporters Iran Iraq Metal Industries is a Professional steel flanges and forgings manufacturer in india, specialize in manufacturing Lap joint flanges / Loose Flange / LJ flange, steel valve, flanges bolts, steel flanges, steel forgings range of flange and forging types and sizes. 47, there are Series A and Series B flange which do not share the same bolt hole sizes. 2 nonplated black finish: K = 0. Other size measurements, such as screw, bolts, pin length, the outer diameters of nuts & washers, etc. T=Fa/12(P/2*Pi+Rt*f/cos(a)+Rs*f), where. 1 Proofload is the published number that full size headed bolts are tested to. B8, Class 2 bolting materials are strain hardened and have different yield strengths depending on bolt diameter. Proper torque spec varies depending on the material, bolt grade or if lubrication is used such as oil, wax, or anti-seize. API 6A is an International Standard which specifies requirements and. 2 nonplated black finish: K = 0. Technically it is based on the applications. EZ Calc - Bolting Calculator, Enerteq's oline tool for estimating Required Torque Values. Bolt Tightening Table 1-3 Table 1-4 Table 1-5 Figure 2-1 1. The proper tightening torque is stamped on the Hoist Ring. MECHANICAL PROPERTIES OF FLAT HEAD SOCKET CAP SCREWS NOM. 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. 0 Torque Calculators. Developed a torque and drag calculation method with bending stiffness. Various K Factors. 1, the EN 13445-3 and the EN 1591-1 calculation codes. 3 process piping, and ASME B31. com Torque is the force used to tighten fasteners or the amount of rotational force that a fastener must be able to withstand before failure. And even better, it saves you some serious time on each and every head bolt or connecting rod nut. Step 1 Calculate gasket effective gasket width and diameter of gasket load reaction as per ASME DIV. follows ASME B16. However, this may not be the case. Fluoropolymer Coated Bolt Torque. Clamp load calculated as 75% of the yield strength for the B7 specified in ASTM A193. Engineers know that bolt head and bolt thread friction consume over 80% of the torque measurement. Bolt Torque Torque is the turning force measured in foot-pounds (ft-lb) or inch-pounds (in-lb) applied to tighten (turn) the nut on a bolt. Flanged end valves having Class designations larger than Class 2500 are not within the scope of the ASME B16. 5 To Design a Valve Flange #Standard. Most accurate bolt torque calculator given its geometry and thread diameter, using vdi 2230 standard, Screw Clearance through the specific tool 3D model. 750 inch bolt diameter F = 920. 5 Class 400 or higher ratings or with flanged joints using metallic gaskets, unless design calculations have been made to show the bolts have sufficient strength to maintain joint tightness. 0 METHOD OF CALCULATING STUD BOLT LENGTHS FOR TYPE 6B AND 6BX FLANGES 2. Torque Method Reviewing the Characteristics of Fastening by Toshimichi Fukuoka Introduction Torque method, due to its easy operation, is the most widely applied fastening method for threaded components. 6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3. 1-2003 standard. The above calculations are based on the use of a ASTM A193 Grade B7/B16 bolt with a coefficient of friction of 0. 5 145 M24 3. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. While prone to other variables such as friction loss, controlling the applied torque does provide a standardized installation process and therefore more consistent gasket compression. CAUTION: Uneven tightening may cause the gasket to pinch. The new publication reflects advances in gasket technology, bolting assembly procedures, and. BoltUp is Hydratight’s simple to use web based calculator, built upon the Informate calculation engine, providing reliable, repeatable bolt loads. Bolt and Nut size dimension for Forged Component's asme pressure vessel connections forging components and reinforced nozzle manufacturing components. Since friction variation will cause tension variation, controlling the friction as much as possible is important. ASME 2014 Pressure Vessels and Piping Conference That Affect Stud/Bolt Breakout and Assembly Torque (K-Factor) Centering Ring and Flange Facing in Calculation. RECOMMENDED ASSEMBLY TORQUES Class 10. 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. Flange Bolting Chart - ASME B16. The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. Rt nd Factor relating total tensile load on a bolt to the tensile strength of the bolt Su F/ L 2 Ultimate tensile strength of a material Sy F/ L 2 Yield strength of a material To F· L Axial torque applied to a bolt T, ΔT T Temperature or temperature change X,Y nd Exponents used in the calculation margin of safety calculations for. Generally 70% bolt yield is targeted. Clamp load (lb. Flange types are circular with inner bolt circle gasket flanges. The digit following the decimal point, multiplied by ten, gives you the yield stress ration, or the percentage ratio between the lower yield stress and the nominal tensile strength. Pressure Gasket Stress Torque/Bolt Gasket Stress Torque/Bolt. Flange Bolt Torques The following charts indicate the approximate bolt torque required to seal flanged joints against internal pressure. First round - 30% of final torque (flange sequential order) Second round- 60% of final torque (flange sequential order) Third round - 100% of final torque (flange sequential. 1(b) or ASME B16. PIPING PRODUCTS. There can be as many as 200 or more factors that affect the tension created in a bolt when tightening torque is applied (refer to paragraph 2. Clamp load (lb. Preload, torque, joint stiffness, bolt stresses, and clamped part stresses are discussed. 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. 625 11 9,040 52 88 11,865 68 115 ── ── ── 0. 75 x A2 x Sp A2 is core surface (/4 x 1. Structural Bolt Dimensions. API 6A is an International Standard which specifies requirements and gives recommendations for. Third measure length Length is measured from behind the head to end,. 47 Series "B" weld neck pipe flanges, Pressure Vessel weld neck pipe flanges. Reduce value by 10% if threads. 34 standard. Once the two-bolt side is to fully torqued the single bolt end shall be tightened to full torque.