Suggestions on 3rd party laboratory testing facilities? youre looking for allowable plastic deformation values, which will depend on bar diameter, length and material strength. It measures a metals resistance to failure when under load. Pls how do you convert diameter to feet or inches? @David- No, as long as you do not use heat (like a cutting torch) to cut the bolt, the mechanical properties should not be altered. My suggestion would be to rig up a sling like they did in Smokey and the Bandit II, that supported Charlotte the elephant, and she was pregnant. Ultimate shear strength is commonly estimated to be 0.6*UTS. It depends only on the maximum force and cross-section area. The following formula is used to provide the solution :-. My query is what is that makes the metal different, because I have seen Parallel flange I beams according to JIS G 3192: 2014 from Russia. For example, a member with a cross-sectional area of 2 in sq and an applied load of 1000 pounds has a maximum tensile stress of 500 pounds per square inch (psi). Calculate the strain felt by the Ultimate tensile strength formula: max = Pmax /A0 where A0 = original cross sectional area, Pmax = maximum load This value is usually much higher than the yield stress (as much as 50 to 60 percent more than the yield for some types of metals). Bolts test out at 84-89 HRB. [citation needed] Tenacity (textile strength) [ edit] @Arjan- Apologies, but we are unable to help with this calculation. We are happy to answer whatever questions you may have once you have determined what size, grade, and quantity of bolts you need. The ultimate tensile strength is the maximum on the engineering stress-strain curve. WebAnswer (1 of 2): To understand the calculation part you should visit the plant and see the entire process of testing. IS M5 BOLT SUFFICIENT TO CARRY WEIGHT OF 6Kg MOTOR HAVING 270 Kgcm TORQUE. Type the value in the box next to Mpa (using the drop down to change the unit of measurement). Load (lbs) This is the force applied to your tube. @Sampson 12 inches = 1 foot. Place the steel plate between the cross heads of the universal testing machine, and align it so that it is perfectly center. Hey, i want to know if 12 mm MS nut & Bolt can bear a load of 300 Kg. wt. for the ultimate tensile strength of a 5/8 mild steel bolt. I have a question. 25.4mm = 1 inch. The Yield Point is in mild- or medium-carbon steel the stress at which a marked increase in deformation occurs without increase in load. The material will be 1 inch 4130 steel rod cut to 33 long with two 90 degree bends one on each end 5 inches in from the end. Tensile Strength (PSI) Yield strength (PSI) Hardness Rockwell (B-Scale) Density (Kg/m) Stainless steel 304. Here F stands for applied force/load. most of the time I deal with ASTM OR API CODES The specimen is held on opposite ends using clamps. The top of of your beam, loaded in compression, will fail in buckling. Multiply the length and width of the steel plate to determine its area. The stress on the wire rope will be the load in Kg divided by the total cross sectional area How to calculation torque value on stud bolt3/4150mm flange 3300# gasket 3300.please show me how to calculate. Is this correct? There are specialized machines that are able to test very small pieces, and others like ours that require a minimum of about 6 inches/150mm. =. I cannot tell you . @Vani- I am sorry, we do not have that information. The yield strength defined as the tension required to stretch the bolt beyond its elastic capability to 0.2% plastic deformation. WebUltimate Tensile Strength. Threads per inch are 8 Material of the hook is duplex stainless steel, factor of safety is 6 : 1. E stands for the modulus of elasticity of the material. @Raymond Apologies, but we dont have the strength data for those two posts. Math can be tough, but with a little practice, anyone can master it. As I understand it, in simplist terms, tensile strength is the force required to pull a bolt apart and yeild is the force required to deform it to the point where it does not fully recover. The Industrial Fastener Institute (Inch Fastener Standards, 7th ed. (suggested range: 390 ~ 2450 MPa) Approx. I just want to know that how i calculate the strength of 12 mm hexagon bolts, for example, in one rack 08 bolts of 12 mm hold the rack, than how much weight capacity of the rack. What i mean is (and this is an unrealistic and exaggerated example), imagine 1/2 inch bolts/nuts bolting into aluminum siding panels unless you have large washers, the bolts can be pulled right out of the siding. WebThe following are basic definitions and equations used to calculate the strength of materials. If they think carefully, a competent person can figure out what will work. 16 Examples of Tensile Strength Bamboo, 350, 50,763 Steel, 531, 77,015 Spider Silk, 1,000, 145,038 Diamond, 2,800, 406,105. For SA193 B7 bolt of 3/4inch diameter, the allowable Stress at 500F are 25000psi and what torque value should be considered for a Flexotelic Gasket. Anyone with the competence to calculate tensile strength would already know this. Arash. Deal with math problem. Continuing with the example from Step 1, multiplying five by six equals an area of 30 square inches. I am totally lost. This relationship is represented by the formula below: How do we calculate the remaining strenght of corroded bolts for flange joint integrity? While concrete is strong in compression, it is weak in tension and can easily crack. In brittle materials the ultimate tensile strength is close to the yield point, whereas in ductile materials the ultimate tensile strength can be higher. I just want to know that is 30 mm mild steel hook lift the 10 mt zinc mould. The AISC publishes Available Tensile values for A325 and other structural bolts and uses two factors, 2.0 for ASD and 0.75 for LRFD. This is the minimum requirement for F1554 grade 36. The total weight it needs to support is 700lbs and my mounting hardware has two bolt holes for each chain. The ultimate tensile strength is the maximum on the engineering stress-strain curve. This is helpful when analyzing what grade of material should be used for a given application, but this doesnt tell us the actual strength of that diameter of material. Pr=2.94Ks Hydrostatic test pressure Thanks in advance. 1020 is pushing the limits of weldable. As for shear, the strength in the threads is approximately 25-30% less than the shear strength in the shank. Divide the the applied load by the cross-sectional area to calculate the maximum tensile stress. For an M6 and M8 bolt I need to determine the bolt length to withstand certain applied forces. WebAn approximate relationship between the hardness and the tensile strength (of steel) is, where HB is the Brinnell Hardness of the material, as measured with a standard indenter and a 3000 kgf load. I, of course, will be gripping the bar with both hands, but would like to know what the possible breaking point may be if I only had one lever/one hand on the bar. The applied tensile stress in a body is defined as the sum of the internal forces per unit area of the object. While concrete is strong in compression, it is weak in tension and can easily crack. Proofload values should be published in the appropriate ASTM standard, or can be calculated from yield. WebThe tensile strength of structural steel is 400 megapascals (MPa), while that of carbon steel is 841 MPa. If your structure is rigid enough that it does not wobble about, it will be very strong. The ultimate tensile strength is the maximum on the engineering stress-strain curve. @Ahmed- You would need to consult an engineer familiar with the project in order to determine that. First, find the ultimate tensile strength using the formula above. WebRange Calculation: A tensile stress value is assumed for which the maximum expected load capacity of the rod is calculated. These are such interesting questions! The wire spool is approximately 12 in length and has a 1 O.D. @Chris- You are correct, I should have qualified that if the bolt is improperly designed or installed, it could strip. The breaking point is the tensile stress area multiplied by the minimum tensile in psi. This corresponds to the maximum stress that can be sustained by a structure in tension. If that is true, your 3/8-16 shoulder bolt would have an ultimate minimum tensile strength of 13,900lbs. Divide the the applied load by the cross-sectional area to calculate the maximum tensile stress. For example, a member with a cross-sectional area of 2 in sq and an applied load of 1000 pounds has a maximum tensile stress of 500 pounds per square inch (psi). Use the following calculator to convert Izod or Charpy values from Joules (J) to foot/pound (ft/lbs) or vice versa. Hi Type the value in the box next to Mpa (using the drop down to change the unit of measurement). Young's Modulus, Tensile Strength and Yield Strength Values for some Materials, A53 Seamless and Welded Standard Steel Pipe - Grade A, A53 Seamless and Welded Standard Steel Pipe - Grade B, A106 Seamless Carbon Steel Pipe - Grade A, A106 Seamless Carbon Steel Pipe - Grade B, A106 Seamless Carbon Steel Pipe - Grade C, A501 Hot Formed Carbon Steel Structural Tubing - Grade A, A501 Hot Formed Carbon Steel Structural Tubing - Grade B, A523 Cable Circuit Steel Piping - Grade A, A523 Cable Circuit Steel Piping - Grade B, A618 Hot-Formed High-Strength Low-Alloy Structural Tubing - Grade Ia & Ib, A618 Hot-Formed High-Strength Low-Alloy Structural Tubing - Grade II, A618 Hot-Formed High-Strength Low-Alloy Structural Tubing - Grade III, Cellulose, cotton, wood pulp and regenerated, named after the 18th-century English physician and physicist Thomas Young. Strength: This refers to a metals ability to withstand permanent deformation and fracture when subjected to external forces. A UTM is a tensile testing machine. Yes, feel free to moderate my comment and delete my sarcasm (or whole post for that matter), but I do thank you for the information. WebAnswer (1 of 2): To understand the calculation part you should visit the plant and see the entire process of testing. Hello I am seeking the tensile strength of a 1 inch thick a36 steel bar with a 1 inch hole threaded for national coarse thread. There are 3 different types of tensile strengths: Tensile yield strength Ultimate tensile strength Fracture tensile strength The yield strength is the strength a metal has before it begins to plastically deform. In other words, a 3/4 diameter F1554 grade 36 anchor rod will be able to withstand 12,024 pounds force (lbf) without yielding. Hardness. Generally, Steel, Titanium, Tungsten and Inconel are considered the strongest four metals. how do i need to calculate the tensile strength for the self drilling screw? Given a 3.25" long, 0.125" diameter rubber rod with tensile strength 1200 psi supported on both ends, how much weight can you hung from the middle of it without breaking it? I would agree with that response it isnt anything we can easily calculate. Apply a known force F on the cross-section area and measure the material's length while this force is being applied. A UTM is a tensile testing machine. WebHow do you calculate stress in steel? Applying the formula for calculating tensile strength for a mild steel bolt, we get a value of 10,500 lbs. Divide the yield strength by the factor of safety to calculate the allowable stress. Steel tube between the spool ends. Google use cookies for serving our ads and handling visitor statistics. Ultimate tensile strength is often shortened to tensile strength or the ultimate.. @Success- Each individual manufacturer of eye bolts has a chart that lists what their bolts are rated at. Mechanical Engineering questions and answers. how can i compute the 8-1/2 diameter steel to find the ultimate yield and tensile strength? Yes that is a good analysis and rule of thumb on thread engagement. This formula will give you the ultimate tensile strength of that size and grade of bolt. For more information, please see our FAQ on bolt shear strength considerations. In addition, I have calculated the load coming on to this projected portion but I am not sure how to design the number of bolts and dia bolts to counter act the load on the projected portion. i need to calculate the load coming on bolt when i apply torque on shaft of 200 Nm. First, find the ultimate tensile strength using the formula above. The top of of your beam, loaded in compression, will fail in buckling. WebEnter half of your outside dims if you want to calculate solid bar (square tube only). how we calculate metal sheet strength by formula. If you want something to be able to withstand more force the simplest approach is to increase the cross-section or get a stronger material. The information on the bolt head is the strength specification. Tensile strength is important on the bottom of your beam. Yield strength differs in that the bolt or test coupon is pulled to failure, and the yield is calculated (using the 0.2% offset method) along with the tensile, elongation and reduction of area. WebFrom this curve we can determine: a) the tensile strength, also known as the ultimate tensile strength, the load at failure divided by the original cross sectional area where the ultimate tensile strength (U.T.S. We, however, do not have any strength information about 1100 aluminum. This corresponds to the maximum stress that can be sustained by a structure in tension. 10000 psi can be converted to 0.069 GPa and 10 ksi as indicated in the chart below: Note! If you are looking for a generic calculation, I can offer a strength calculation based on a mild steel rod. The 0.57*TYS is probably taken from the von Mises/distortion energy/octahedral shear stress criterion, and it should be stated as shear yield strength = 0.577*tensile yield strength. Take that value and multiply it by 60% (0.60). Hello I was looking to write a test method validation for an elongation test which will be in compliance with the EN 45502-2-3 clause 23.3. To calculate the modulus of elasticity E of material, follow these steps:. I hope that helps-. WebWhat is the ultimate tensile strength of UTS? We can assist with specific questions about the bolt once you determine what you need, but we are unable to make engineering recommendations. 6 Ton Lifeboat hook will be installed to anchor bracket with 42 mm anchor bolt. Note: Below is a simple metal strength chart you can use to compare metals: Types of Metals. Thank you for your assistance. I cannot account for any loads on the bent portion, just the straight round bar. Use the following calculator to convert Izod or Charpy values from Joules (J) to foot/pound (ft/lbs) or vice versa. WebFrom this curve we can determine: a) the tensile strength, also known as the ultimate tensile strength, the load at failure divided by the original cross sectional area where the ultimate tensile strength (U.T.S. However, the weakest point will be where the bolt screws into the wood and the strength will be limited by the pull out value of the wood. Stress (normal) Stress is the ratio of applied load to the cross-sectional area of an element in tension and isexpressed in pounds per square inch (psi) or kg/mm 2 . Ultimate : 78ksi (suggested range: 390 ~ 2450 MPa) Approx. WebThe following are basic definitions and equations used to calculate the strength of materials. Here F stands for applied force/load. Tensile strength values vary for various steel densities. TS 1420 MPa approximately* =. Tensile strength is typically quantified through units of pounds per square inch (PSI) or pascals (Pa). Merci. @Ryan- Apologies, but this is slightly above our level of expertise, as we do not have any engineers on staff. If nut and bolt are made from the same material,and thread engagement is at least 55% the bolt will pull into (tensil) before the thread shears. Below is a simple metal strength chart you can use to compare metals: Types of Metals. Must be an easier way of computing this Tensile Stength of Steel in question. 4. how large was the pilot hole for the lag bolt? WebAn approximate relationship between the hardness and the tensile strength (of steel) is, where HB is the Brinnell Hardness of the material, as measured with a standard indenter and a 3000 kgf load. Webcastings steel; cast iron; wrought iron; stainless steel (304N) Strength of Metals - SI Units. For an example, lets use normal draft. However, with the addition of a compressible gasket, we cant be sure if those charts apply as they are for steel to steel connections only. Example: What is the ultimate tensile strength of a 3/4 diameter F1554 Grade 36 rod? Be careful when calculating as the threaded section of a bolt has a smaller cross-sectional area than the smooth shank, for instance, the smooth shank of an M16 bolt has a cross sectional area of 201mm wheras the threaded part has a defined area of 157mm. 12.9 bolts should never be anywhere near that soft. We do have strength and grade summaries on our website, and are happy to give to any technical information we have, but we do not have any engineers on staff. Im hanging a porch swing into a 7foot long 212 that is supporting my balcony. @Sampson I am sorry, but we do not have the tensile stress area charts for metric fasteners. 2 The Ultimate Tensile Strength - UTS - of a material is the limit stress at which the material actually breaks, with a sudden release of the stored elastic energy. For example: allowable stress of A36 steel = 36,000 psi / 4.0 = 9,000 pounds per square inch. Sy = 58 Ksi ER316L rode yield strength @Waseem I am sorry, but we dont know how to calculate mechanical properties on pipe. Apologies. Does strength of an all thread change if you band saw/ cut to a shorter length. Not to mention that I doubt your roof/ceiling was designed to support that kind of weight. Our expertise is limited to steel and stainless steel fasteners. Yield strength is defined in engineering as the amount of stress (Yield point) that a material can undergo before moving from elastic deformation into plastic deformation. Hi, I have been trying to find a comparison chart to determine at what torque in NM a bolt would go into yield in this case a M20x2.5 A4-80 stainless bolt. WebUltimate tensile strength of low-carbon steel is between 400 550 MPa. Web2) tensile strength of steel is higher than compressive strength, steel experience good behave in tension whereas poor behave in compression. 1. On the basis of figure 2.5, calculate the ultimate engineering tensile strength of 304 stainless steel. Mechanical Engineering. In most cases, the strength of a given material used to make a fastener has strength requirements or parameters described as pounds per square inch (psi) or thousands of pounds per square inch (ksi). We primarily handle larger, custom anchor bolts. If a 1/4-20 x 5 threaded rod falls a distance of 3 to an uncarpeted shop floor, and there is no one in the building, will it make a sound? Example 1: Area of rectangular cross section Unlike tensile and yield strengths, there are no published shear strength values or requirements for ASTM specifications. L stands for the length of the specified rod. It is available for purchase through the AISC website. WebEngineering. could you please help settle an argument between me and my fellow fencing contractor, i think a 76 x 76 x 2mm steel post is stronger than a 150 x 150 pine post, can you please help. Finally, we divide the stress by strain to find the Youngs modulus of steel: E = / = 300*10 / 0.0015 = 200*10 = 200 GPa . Then on the stress-strain diagram, lay off om equal to the specified value of the offset (i.e. is divided by P max /A 0, where P max is the maximum load and A 0 is the original cross sectional area. @Raghu- We are sorry, but we do not have any engineers on staff and so are unable to provide those calculations. The 0.57*TYS is probably taken from the von Mises/distortion energy/octahedral shear stress criterion, and it should be stated as shear yield strength = 0.577*tensile yield strength. how can we calculate safe thickness of circular plate made of 1490 LM6 aluminium plate whose diameter is 20 mm. 1020 is pushing the limits of weldable. Pls how to calculate area of a tensile bar with diameter 24.25mm and gauge length of 53.100mm. Apologies. The tensile strength of concrete is its ability to resist being stretched or pulled apart under stress. A concrete slab was casted over 9m span beam, and later it was found the slab projection of 0.8m long with ~5m width was required to rest the window components. Take that value and multiply it by 60% (0.60). Also, I agree with jhardy1, above. Tensile strength can be divided into three types: yield strength, which is the amount of stress a material can withstand without becoming permanent deformed. can I download it on any website. A stands for cross-sectional area of the rod. Again, for a bending moment or other calculation, youll need to find someone with that equation. Hi, When in doubt, call an engineer. Example - Strength of Copper at 100 o C. As indicated in the first figure - the strength of copper is reduced to approximately. Tensile Modulus - or Young's Modulus alt. how to calculate the strength of the steel for tension member without using tensile load method? That is simply due to the minor (root) diameter of the threads vs the full diameter of the shank. Stress (normal) Stress is the ratio of applied load to the cross-sectional area of an element in tension and isexpressed in pounds per square inch (psi) or kg/mm 2 . 2003. It measures a metals resistance to failure when under load. Thank you. I want to know the tensile strength of the threads in the steel. @Rachid- Apologies, but that is a little out of our realm of expertise. Apologies. @Jeff- Yes, the bolt will always fail in tensile as opposed to thread stripping, unless there is a problem like loose threads or weak female material. I need to figure out the sheer strength of a 3/8-16 zinc plated u-bolt. Yield strength and tension strength of Fe250 is 250MPa and 410MPa respectively, tensile strength is 410MPa whereas maximum compressive strength is only about 35 to 40% of tensile strength. Strength of Metals - Imperial Units. Apply a known force F on the cross-section area and measure the material's length while this force is being applied. Continuing with the example from Step 1, multiplying five by six equals an area of 30 square inches. to withstand in compression. I have 3 treated 46s that are bowing and want to pull them back into the straight vertical postion. Strength of Metals - Imperial Units. T (in) Weld fillet throat dimension Mechanical Engineering questions and answers. @Dan- You are correct, 19kips. Are there industry standards in hardness (Rockwell) for specific grades of bolts (primarily metric) what would a failed hardness test indicate in a bolts tensile strength? Your email address will not be published. In layman's terms, it is the measurement of the force required to stretch a material until it breaks. Strain is the "deformation of a solid due to stress" - change in dimension divided by the original value of the dimension - and can be expressed as, = dL / L (1), dL = elongation or compression (offset) of object (m, in), Stress is force per unit area and can be expressed as, = F / A (2), = (F / A) / (dL / L) (3), E = Young's Modulus of Elasticity (Pa, N/m2, lb/in2, psi). I was wondering how the tensilestrength of the bolt related to the thread strength. Place the steel plate between the cross heads of the universal testing machine, and align it so that it is perfectly center. You would need to tell us what diameter and grade to fabricate. Tensile Stress Formula If the force is acting perpendicular to the surface is given by F, and the surface area is H, then tensile stress (T) is given by: T = F H S.I. More detailed information can be found by looking at ASTM F606 Section 3.6.3.1 or by contacting an accredited test lab. Would this be an indication of poor quality control during production? What is tensile strength? thickness (t) = 0.5 in. Elongation = FL/AE. For example: allowable stress of A36 steel = 36,000 psi / 4.0 = 9,000 pounds per square inch. Thank you for a very concise explanation on calculating yield and tensile strength. Place the steel plate between the cross heads of the universal testing machine, and align it so that it is perfectly center. Kindly advice. B-8) states that shear strength is approximately 60% of the minimum tensile strength. Length of tube (inches) Set to 12 if you're just comparing materials Material Choose your material. However, the limiting factor will be the material it is screwed into, and the wood will typically yield before the lag bolt will, so you may have a problem using only one lag bolt. 1=56,520lbs. We are not sure. Take the minimum tensile strength in psi of the ASTM grade, multiplied by the stress area of the diameter. If it is a large swinging or bouncing load, get an engineer to look at it. It depends only on the maximum force and cross-section area. TVP (Materials) 20 May 06 13:40. unit of T = Pascal (Pa) or Newton per meter square or N x m- 2 Dimensional formula for tensile stress = M1L1T2 Tensile Strength I did make a mistake but the question is the same. - this online pressure converter can also be used to convert between Tensile Modulus units. We have an FAQ that addresses the difficulty of calculating strength values for lag bolts. unit of T = Pascal (Pa) or Newton per meter square or N x m- 2 Dimensional formula for tensile stress = M1L1T2 Tensile Strength ), max = P max /A 0 , where P max = maximum load, A 0 = original cross sectional area. What wed need to know first is what tension or clamping force are you trying to achieve? @Muhammad- Apologies, but we do not have any experience with sheet metal, and do not know how the mechanicals are tested or calculated. Cite this Article. If this stress is applied and maintained, a fracture will result. The specimen is held on opposite ends using clamps. You multiply that by 0.334 in2 which is the area of the minor diameter of the threads for 3/4-10. How do I show this calculation. is it possible that your bolt passes in tensile strength and fails in proof stress. It is important to understand that this value is only an estimate. please refer to the following link: Id be interested in the same thing that Ryan is asking above. @Chano- In a straight line pull, the length of the bolt is irrelevant. I am currently working on a project that involves the use of a hydraulic torque wrench to tighten a series of nuts on an oil field blow out preventer or otherwise known as a B.O.P. I have a welded test coupon that is made of x70 pipe. Ultimate tensile strength is often shortened to tensile strength or the ultimate.. A bolt is designated to be 8.8 according to BS3692, what is the yield stress of the bolt? E stands for the modulus of elasticity of the material. Note that Hooke's Law can also be applied to materials undergoing three dimensional stress (triaxial loading). Ultimate tensile strength is often shortened to tensile strength or even to the ultimate.. Many ASTM specifications have published tables for proof load values, but not all do. 6) Shear strength: the maximum shear load a material can withstand before failing divided by its cross-sectional area. I would consult an engineer and have your bolts tested if you are concerned about safety. Is there a formula to calculate both tension & shear capacity or a Std Table similar to the link given above for below M12 size? It is important to understand that this value is only an estimate. The ultimate tensile strength is the maximum on the engineering stress-strain curve. The stress on the wire rope will be the load in Kg divided by the total cross sectional area Basically, the load is acting to the projected pipes as cantilever load. Mechanical Engineering. I will edit. how do I calculate the ultimate tensile strenght of Ti6Al4V from hardness values. That is information we do not have. unit of T = Pascal (Pa) or Newton per meter square or N x m- 2 Dimensional formula for tensile stress = M1L1T2 Tensile Strength We calculate the stress, using the stress formula: = F/A = 30*10 / (1*10) = 300*10 = 300 MPa . @Jerod- 84-89 HRB hardness readings would indicate a strength close to mild, low carbon steel (grade 2, 4.6, A307). If the grading is 8.8, with reference to the first number 8, this means the ultimate tensile strength (breaking strain to be at least this) is 800MPa, or, 800N/mm. WebGuide to Tensile Strength. Tensile strength is important on the bottom of your beam. Material choice would be ASTM A193 B7 or B8. You will need to contact a test lab for more information. Strain (normal) A measure of the deformation of the material that is dimensionless. It can be used to predict the elongation or compression of an object as long as the stress is less than the yield strength of the material. This corresponds to the maximum stress sustained by a structure in tension. 6 dia pipe. These applications will - due to browser restrictions - send data between your browser and our server. How to calculate tensile strength of braided steel wire? Normally, the proof load values are about 90-92% of yield,but that can vary. WebRange Calculation: A tensile stress value is assumed for which the maximum expected load capacity of the rod is calculated. Starting from EU to ASTM, JIS, IS, GOST, DIN etc. So 36,000 x 0.226= 8,136lbs. On metric bolts it is listed as a percentage of tensile strength 8.8 is 800 megapascals with 80% yield strength or 640 megapascals. @Pragash- I am sorry, but we do not have that information.

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