MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Tightening torque value of 4.8 grade carbon steel bolts
TorqueTension Relationship ISO 8981 Property Class 46, 88,
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 Clamp load calculated as 75% of the Due to many variables that affect the torquetension relationship like human error, surface texture, and lubrication the only way to determine the correct torque is through experimentation under Bolt Torque Chart Portland Bolt2024年4月15日 Use this table for comparing hardness of carbon steels, cast steels and low alloy steels in a heat treated and hot formed conditionPreLoad and Tightening Torques of Metric Thread The importance of correct bolt tightening cannot be over emphasized Determining the correct torque can however present problems Approximately 90% of the applied torque is employed Torque Settings Grampian Fasteners
.jpg)
Metric Bolt Grade roshdsanatniroo
carbon steel, fully or partially annealed: 340 420 B74 : B95 48: 58 M5M24 low or medium SAE ASTM Bolt Grade SAE ASTM Bolt Grade Identification Marks and Mechanical Torque is only an indirect indication of tension Under/over tightening of fasteners can result in costly equipment failure or personal injury NOTES: 1) The torque values can only be achieved TORQUETENSION REFERENCE GUIDEThese include bolts and screws having a low or countersunk head (see 82) This part of ISO 898 is applicable to bolts, screws and studs ⎯ made of carbon steel or alloy steel, ⎯ having INTERNATIONAL ISO STANDARD 8981 The proper axial tightening force for a bolt should be calculated within an elasticity range up to Load 70% of the rated yield strength when the torque method is used The fatigue strength of Proper Bolt Axial Tightening Force and Proper Tightening Torque
Metric Bolt Torque Chart Recommended Max Values Fractory
Maximum Tightening Torques for Coarse Threaded Metric Bolts Property classes (grades) are defined by ISO 898 (Mechanical properties of fasteners made of carbon steel and alloy steel) TorqueTension Relationship ISO 8981 Property Class 46, 88, 109 129 the K value can vary between 012016 ISO 8981 Property Class 129 Torque (Nm) Torque (ftlbs) ISO 8981 Property Class Torque is only an indirect indication of tension Under/over tightening of fasteners can result in costly equipment failure or personal TorqueTension Relationship ISO 8981 Property Class 46, 88, Size (in) Recommended Maximum Tightening Torque (lbft) SAE Grade 2 SAE Grade 5 SAE Grade 8 188 S/S; Coarse Fine Coarse Fine Coarse Fine Coarse Fine; 1/4: 4: 47US Bolt Torque Chart Recommended Max Values Fractory2010年11月25日 Steel Bolts Metric Grades ; Steel Bolts SAE Grades ; For metric bolts strength is according ISO 898 Mechanical properties of fasteners made of carbon steel and alloy steel described by "property classes" with designations 46, 48, 58, 88, 98, 109 and 129Metric Steel Bolts Grades and Property Classes The
Torque Settings Grampian Fasteners
Recommended Tightening Torques Zinc Plated Finish Select Grade as required below 129 / 109 / 88 Maximum Recommended Tightening Torques Metric Coarse Pitch Grade 129 Plated Metric Coarse Pitch Grade 109 Plated Metric Coarse Pitch Grade 88 Plated Ncm inlb Ncm inlb Ncm inlb M16 24 211 M16 20 176 M16 14 125the value of the clamping force is usually referred to as the tightening torque As the clamping force is a linear function of both the turning angle of the screw and the pitch of the thread, there is a direct relation between the clamping force and the tightening torque within the elastic range of the screw elongation However, onlyPocket Guide to Tightening Technique Atlas Copco2024年8月9日 Performance grades of bolts (GB/T309812010) The performance grade designation of a bolt is marked on its head, typically represented by two numbers XY, which provide crucial information about the bolt’s mechanical properties X * 100 denotes the nominal tensile strength of the bolt material in MPaUnderstanding the Principles of Bolt Fastening MachineMFGBolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5 AFT Fasteners is your trusted source for fastener information Welcome GuestBolt Torque Chart AFT Fasteners
.jpg)
Metric Thread Bolt Torque table
The tightening torque is the force used to tighten the metric fasteners during assembly with a tool This torque is transmitted to the metric fasteners using an adjustable, suitable torque wrenchThe corresponding values for the various screw sizes and strength classes for metric coarse threads can be found in the metric torque table belowTorque Values Stainless Steel Bolt Table Chart acid Its nickel, chromium, molybdenum and copper levels all provide excellent general corrosion resistance Restricted carbon plus columbium stabilization permits welded fabrications to be used in Carpenter 20 Astm A193 Stud Bolt Grade B7: Carpenter 20 Stud Bolt Nut Suppliers: Carpenter Torque Values Stainless Steel Bolt Table Chart Raajsagar SteelsThe following suggested tightening torques provide an excellent starting point for determining torque requirements Bolt Size: 188 Stainless Steel : Brass: Aluminum 2024T4: 316 Stainless Steel: Nylon: 2 56: 25: 20: 14: 26: 044: 4 40: 52: 43: 29: 55: Torque Table Standard Bolt Sizes SAE Grades 1 8 ; Torque Values Torque Table Standard Bolt Sizes SAE Engineers Edge2024年7月24日 Read on to discover what is bolt torque, the bolt tightening torque calculation formula, Let's say you have a zincplated mildsteel bolt with a diameter of 3/4 inch (or 1/16 ft), It's important to refer to a specific torque Bolt Torque Calculator
Best Practice Guide for Hot Dip Galvanized Bolts and Bolted Joints
grade 88HR and strength grade 109HR assemblies, along with more traditional commercial and high strength grades Commer cial bolts to AS 11111 (8), strength grade 46 High str ength structural bolts to AS/NZS 12521, strength grade 88 High str ength structural bolts to AS/NZS 12521, strength grade 109 T ower bolts to AS 1559 (9), strengthA354 – Quenched and Tempered Alloy Steel Bolts and Studs with Suitable Nuts A449 – Quenched and Tempered Steel Bolts and Studs; A490 – Quenched and Tempered Alloy Bolts for Structural Steel Joints; ASTM A307, A325, and A490 Bolt Grades [with Charts] EngineerExcelASTM A307 Grade A SAE J429 Grade 5 SAE J429 Grade 8 H K G 9 HoloKrome Grade 9 Clamp Load (Lbs) Tightening Torque Clamp Load (Lbs) Tightening Torque Clamp Load (Lbs) Tightening Torque Clamp Load (Lbs) Tightening Torque K = 015 K = 020 Ecoguard™ K = 015 K = 020 Ecoguard™ K = 015 K = 020 Ecoguard™ Unified Coarse Thread SeriesTORQUETENSION REFERENCE GUIDEPART 3 MECHANiCAL PROPERTIES OF FASTENERS MADE OF CARBON STEEL AND ALLOY STEEL — BOLTS, SCREWS AND STUDS ( Fourth Revision) 1 Scope This part of ISO 898 specifies the mechanical properties of bolts, screws and studs made of carbon steel and alloy steel when tested at an ambient temperature range of 10 “C to 35 “CIS 13673 (2002): Technical Supply Conditions for Threaded Steel
Recommended Assembly Torques 2016 Steelmasters
Surface Condition Torque Adjustment Factors Plain Steel, as supplied x 10 Plain Steel, degreased x 20 Zinc Plated, Galvanised, lightly oiled x 11 Heavily greased x 07 Recommended Assembly Torques BSW Mild Steel Bolts Screws Bolt Tension Corresponding to 65% of Proof Load Recommended Assembly SAE Grade 5 Bolts Screws Thread Bolt Grade 36 46 48 58 88 109 129 UNF Recommended Tightening Torque SAE Grade 5 SAE Grade 8 Nominal Size (in) Threads per inch Nm lbft Nm lbft 1/4” 20 95 7 14 10 Stainless Steel Fasteners (Metric) Recommended Tightening Torque, Nm Nominal Size Pitch, mmTightening Torque Guide MilsonsUnlike most bolt torque charts, this particular chart also lists clamp loads and torque values that correspond with bolt material stresses of 10,000 and 25,000 psi regardless of fastener grade This listing may be useful when determining an appropriate derated torque value when engaging with lower proofstrength materialsBolt Torque ChartMechanical Properties of Carbon Steel and Alloy Steel Coupling Components Steel structural bolts are d ≧ M12 (c) Recommended tightening torque (Tf) = toolspecific value x max tightening torque (Tfmax) Toolspecific value 1）Manual tightening ： 065 TfmaxMechanical Properties of Carbon Steel and Alloy Steel Coupling
.jpg)
Proper Bolt Axial Tightening Force and Proper Tightening Torque
Steel Bolt Black Oxided Film Oil Lubrication M 4 878 128{ 131} 1117{ 114 } 89{ 91 } 774{ 79 } M 5 142 111{113 }1568 160 76 78 1088 [Technical Data] Proper Bolt Axial Tightening Force and Proper Tightening Torque Strength of Bolts, Screw Plugs and Dowel Pins 3549 3550 These include bolts and screws having a low or countersunk head (see 82) This part of ISO 898 is applicable to bolts, screws and studs ⎯ made of carbon steel or alloy steel, ⎯ having triangular ISO metric screw thread in accordance with ISO 681, ⎯ with coarse pitch thread M1,6 to M39, and fine pitch thread M8×1 to M39×3,INTERNATIONAL ISO STANDARD 89812021年1月27日 Well, most of the time, that torque value requires adjustment It needs to be adapted to the realworld conditions surrounding the application of the bolt This is where kfactor comes into play What is KFactor in Bolt KFactor: Finding Torque Values for Bolted JointsiAxial Tightening Force for Bolt and Fatigue Limit The proper axial tightening force for a bolt should be calculated within an elasticity range up to 70% of the rated yield strength when the torque method is used The fatigue strength of bolt under repeated load should not exceed the specified toleranceProper Bolt Axial Tightening Force and Proper Tightening Torque
Torque Calculator
Extreme caution should be used when using a formula for torque/tension relationships Torque is only an indirect indication of tension Under/over tightening of fasteners can result in costly equipment failure and/or personal injury No two bolts respond exactly the same to a given torque There are numerous "real world" complications2022年2月10日 This is the tightening torque of ordinary bolts: Bolt strength grade Yield strength N/mm2 Nominal diameter of bolt mm 6 8 10 12 14 16 18 20 Tightening torque Nm 48 56 68 88 109 129 240 300 480 640 900 1080 45 57 79 912 1316 Carbon Steel Pipe; Duplex Stainless Steel Pipe; 12 torque value of bolts with common Tightening torque standard of bolts China piping solution 2010年11月25日 US Bolts Tightening Torques; Size (in) Torque (lb f ft) SAE Grade 2 SAE Grade 5 SAE Grade 8 188 S/S; Coarse Fine Coarse Fine Coarse Fine Coarse Fine; 1/4: 4: 47: 63: 73: 9: 10: 63: 78: Lubrication effect on bolt tension and torque Steel Bolts ASTM Grades ASTM steel bolts proof and tensile strength Steel Bolts US Bolts Tightening Torques The Engineering ToolBoxSteel Bolt Black Oxided Film Oil Lubrication 0145 SCM−FC FC−FC SUS−FC M 4 878 128{ 131} 1117{ 114 } 89{ 91 } 774{ 79 } M 5 142 111{113 }1568 160 76 78 1088 Proper Bolt Axial Tightening Force and Proper Tightening Torque Strength of Bolts, Proper Bolt Axial Tightening Force and Proper Tightening Torque
INTERNATIONAL ISO STANDARD 8982
alloy steel — Part 2: Nuts with specified property classes — Coarse thread and fine pitch thread 1 Scope This part of ISO 898 specifies mechanical and physical properties of nuts with coarse thread and fine pitch thread made of carbon steel and alloy steel when tested at an ambient temperature range of 10 °C to 35 °C2007年10月16日 carbon steel socket head cap screws torque the same as grade 8 one design called for 1 1/2″ Gr 8 bolt with 2200 ftlb tightening torque now the engineer claimed that by specifying a 1000 ftlb tightening torque will be adequate based his For 5/8″ Step bolts, of SAE grade 2, what torque value should we be specifying Tension vs Torque Portland BoltGrade 307A – indicates low carbon steel Grade to be found on the head of the bolt marked ‘307A’ Grade 2 – indicates low or medium carbon steel This grade usually has no markings, making it the hardest to reliably identify Grade 5 – indicates medium carbon steel Can be identified by searching for 3 radial lines on the head of a Bolt Strengths and GradesAFT Technical Resources A chart to identify bolt grades using bolt grade markings; also provides a strength chart for common grade bolts Welcome Guest 8778448595 High strength structural bolts Medium carbon steel, quenched and tempered 1/2" 1" 11/8" 11/2" 85,000 74,000 120,000 105,000 92,000 81,000 C24 / C35 C19 / C31 Grades of Bolts Bolt Grade Marking Chart AFT Fasteners
TR knowledge base Steel fasteners preload and tightening
Steel fasteners Preload and tightening torques coarse metric threads [PRICE] CAREERS My account View enquiries View collections Screws and Bolts Nuts Washers, Circlips, Rings, Seals, ORings Fasteners for Sheet Metal Maximum tightening torque (Ncm) property class to ISO898/1; Thread Coeff of friction 36 46 56 48 58 8 2020年6月2日 The tightening force of a bolt is crucial to the intervals of stress for lowcarbon steel 48 and 88 ties is feasible to measure the absolute value of t he bolt tightening A Review of Bolt Tightening Force Measurement Coarse bolts It is made of carbonstructural steel a washer should be added on both sides of the bolt The initial tightening torque value is 50% of the final bolt divided into ten performance grades: 36, 46, 48, 56, 58, 68, 88, 98, 109, and 129 The bolts above grade 88 are made of lowcarbon alloy steel or medium Steel Structure Bolt, Bolt Connection for Metal Structurecarbon steel: 240 400 B67 : B95 46: 48 M16 M16 low or medium carbon steel, fully or partially SAE ASTM Bolt Grade SAE ASTM Bolt Grade Identification Marks and Mechanical Properties Bolt Grade Tightening Torque (Nm) TPI : Proof Load (KN) Clamp Load (KN) Waxed Galv : Plain Metric Bolt Grade roshdsanatniroo
Stainless Steel Bolts and Nuts ASTM A193 Fasteners
SS Bolt Torque Value comparison with other non ferrous fasteners Property Class/ Grade Tightening Torque (Nm) class Min Breaking Torque; A150 (303) A270 (304) A480 (316) A150 (303) A270 (304) A480 (316) Carbon Steel Bolts; Alloy Steel Bolts; Aluminum Fasteners; Phosphor Bronze Fasteners;TorqBolt Inc is india’s leading Astm F568 Grade 48 Fasteners Suppliers, bolts stockist, bolts suppliers, bolts exporters and importer ,bolts dealers, stockholders, indentor, bolts manufacturers, retailers, wholesaler, bolts distributors, traders, specialized in delivering consignments on time by means of Express Courier Services DHL, FedEx, UPS, TNT, etc to the remote locationsAstm F568 Grade 48 Fasteners 48 Bolts, Screws NutsTightening torque TfA can be obtained by using the following formula(2) =200/224 =89 [mm2] By finding a value greater than the result of the equation in the Effective Sectional Steel Bolt Black Oxided Film Oil Lubrication 0145 SCM−FC FC−FC SUS−FCProper Bolt Axial Tightening Force and Proper Tightening TorqueTorque values calculated from formula T=KDF, where Lubricated Clamp Load F based on 75% of Yield Dry Clamp Load F based on 40% of Yield to avoid Galling K = 016 for "lubricated" conditions K = 035 "dry" Tightening Torque listed in Nm as well as US Customary Units inchpounds up through M10 and footpounds M12 and larger 266 310 912 1064 Torque Values for A270 or A470 Metric Stainless Steel Fasteners
Table of design properties for metric steel bolts M5 to M39
1993年1月8日 Design properties for metric hex bolts (Typical coarse pitch thread) Dimensions Hole diameter d 0 [mm] Areas Tensile resistance F t,Rd [kN] Shear resistance per shear plane F v,Rd [kN] Maximum bearing resistance per mm of connected plate thickness F b,Rd / t [kN/mm] (for adequate distances e 1 ≥3d 0, e 2 ≥15d 0, p 1 ≥375d 0, p 2 ≥3d 0) Minimum bearing