ASTM F2248 Standard Practice for Specifying an Equivalent 3-Second Duration Design Loading for Blast Resistant Glazing Fabricated with Laminated Glass ASTM F2257 Standard Specification for Wrought Seamless or Welded and Drawn 18 Chromium-14Nickel-2.5Molybdenum Stainless Steel Small Diameter Tubing for Surgical Implants (UNS S31673) 6. STANDARD ASTM Tyler Equivelant U.S. STANDARD ASTM Tyler Equivelant 125 mm inch 5.0 - 1.7 mm No. ASTM DESIGNATIONS ARE ALSO AVAILABLE AS ISO.
ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1â2 to 11â2 inches (13 to 38 mm) in diameter.[1]
The equivalent metric standard is ASTM A325M, which is titled Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength. It defines mechanical properties for sizes M12â36.[2]
This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services.
In 2016, ASTM officially withdrew specification A325 and replaced it with ASTM F3125.[3] To minimize confusion, bolt head markings are unchanged and the designation A325 is retained as a grade name within the new standard.[4] In 1951, A325 bolts were recognized as equivalent to a hot driven ASTM A141 rivet.[5]
Types[edit]
The type refers to the type of material used to make the bolt. The standard currently defines two types, however it previously defined the following three:[6]
There is also a T version, which is used to refer to fully threaded bolts.[6]
Tally erp 9 latest version download. Note that independent of the material the bolt is quenched and tempered.[7]
Connection types[edit]
There are also three connection types defined:[6]
Astm Vs Iso Standards ComparisonMechanical properties[edit]Mechanical properties, imperial[edit]
These types of bolts are designed to be tightened to near their proof strength, in order to create significant bolt tension. The standard states that the bolts must be tightened to at least 70% of the tensile yield strength. These bolts use the same material as their common cousins (ASTM F568M for metric bolts), but have a thicker and wider head to more effectively distribute the load. This modified geometry is often referred to as heavy hex geometry.[8] Nuts must meet ASTM A563, which also uses heavy hex geometry.[9]Download prezi next. Dimensions of heavy hex geometry are per document ANSI/ASME B18.2.6, which uses 'coarse' threads as defined by Unified Thread Standard.
ASTM 325 bolts can be considered equivalent to Grade 8.8 bolts according to ASTM F568M.[citation needed]
For a higher strength version of this type of bolt, see ASTM A490.
Mechanical properties, metric[edit]
/mm
See also[edit]References[edit]
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Updated September 26, 2017
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Updated September 26, 2017
Global standardization has led to the gradual replacement of the American Society for Testing and Materials standard to the International Standard Organization method. These standards establish useful and accurate baselines for materials manufacturing. ISO has developed over 18,500 standards, as of publication date. There isn't a mathematical formula for converting ISO back to ASTM, but you can refer to published tables to find the equivalent specifications in one system or another.
Identify the product specification linked to the ASTM designation. For example, ASTM D638-94b covers tensile evaluations for plastics, including overall length, radius and width.
Navigate to the online ISO Catalog published by the American National Standards Institute.
Click 'keyword' and then type a description for the procedure or product into the 'Enter keywords' text box. Click 'Go.' A list of relevant ISO standards will appear.
Select an ISO standard based on the given description. For example, ISO 527-5:2009 is 'Plastics -- Determination of tensile properties -- Part 5: Test conditions for unidirectional fibre-reinforced plastic composites.'
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