Product Description
ASTM A453 Grade 660 Class A specificationprovides a yield strength viz. 85 ksi [585 MPa] respectively for use in high temperature service for bolting components such as Stud bolts, screws, nuts, hex bolts & various other fasteners for pressure vessel and valve flanges.A453 Grade 660 Class Ais equivalent to class D when manufactured in single age hardened condition..A453 Grade 660 Cl AStuds and nuts are capable of meeting impact test requirements of 40 joules minimum at - 196 Degrees Centigrade.ASTM A453 Grade 660 Class Ais produced in various other forms like wire rods, round bars, shafts, castings, forgings, threaded bars, threaded rods, wires, tubings, sheets, plates, welding rods, hex bars, Rivets & Springs. Class A Bolting can be certified under nace provided the hardness is controlled and not over 35HRC.
ASTM A453 660 Class A Fasteners are availvbe in different size
Size Ranging from :
Diameter : M6-M100 ; 1/4"-4"
Length : 20mm-1000mm ; 3/4"-40"
Precision Engineering for Demanding SectorsThese fasteners deliver remarkable strength and reliability for aerospace, industrial turbines, and automotive superchargers. Manufactured to international standards, they maintain performance in high-stress, high-temperature, and cryogenic environments. Their versatility in sizes and head types ensures seamless integration into sophisticated machinery and systems.
Versatility Across Multiple ApplicationsASTM A453 660 fasteners are integral components in the assembly of tanks, pumps, heat exchangers, piping, and more. Their non-magnetic properties are essential for cryogenic components, while corrosion-resistant alloys prolong the service life of equipment exposed to harsh conditions. Each fastener is produced with precision, ensuring compatibility and durability.
FAQs of ASTM A453 660 Class A Fasteners:
Q: How are ASTM A453 660 Class A Fasteners typically used in industry?
A: ASTM A453 660 Class A Fasteners are used for joining components in jet engines, industrial gas turbines, non-magnetic cryogenic assemblies, superchargers, tanks, and heat exchangers, where durability under extreme conditions is critical.
Q: What are the primary benefits of choosing these fasteners?
A: These fasteners provide exceptional tensile strength, maintain stability in high temperatures and cryogenic environments, and resist corrosion. Their compliance with standards like ISO 4017 and ASTM A453 ensures proven reliability in demanding applications.
Q: When should ASTM A453 660 Class A Fasteners be considered over standard fasteners?
A: They should be considered for environments requiring high mechanical strength, non-magnetic properties, and excellent resistance to both heat and corrosionespecially in aerospace, energy, and advanced automotive engineering.
Q: Where can these fasteners be sourced?
A: In India, these fasteners are available through various channels, including dealers, distributors, manufacturers, exporters, retailers, suppliers, traders, and wholesalers.
Q: What is involved in the manufacturing process of these fasteners?
A: Manufacturers fabricate these fasteners using high-grade alloys, applying precise machining and bright surface treatments to achieve the desired strength, dimensions, and appearance while meeting strict international standards.
Q: How do I determine the correct head type and size for my application?
A: Select by evaluating the mechanical requirements, assembly environment, and design specifications. The available head typesAllen Cap, Hex, Socket Head, Flange, and othersoffer flexibility for specific installation and service needs.