What exactly are ASTM Bolts?

In numerous industrial uses, fasteners are essential elements. They secure different components together and guarantee their effective operation. In order to guarantee the quality of fasteners and their suitability for a range of uses, the American Society for Testing and Materials (ASTM) has established standards. Fasteners can be categorised using ASTM grades according to their strength, longevity, and other characteristics.

How to Spot Differences in High Tensile Bolt Grades

High tensile bolt grades are used in a variety of applications that demand a high level of strength. Tensile strength and other characteristics are used to classify these bolt grades. Understanding the differences between high tensile bolt grades can assist you in selecting the best bolt for your particular application. Here are some pointers to help you distinguish between high tensile fastener grades:


Types of ASTM Bolts:

Ananka Group is one of India's top manufacturers of high-tensile nuts and bolts. They provide a variety of grades, including the following:


  • ASTM A320 Grade L7 Bolts: ASTM A320 Grade L7 Bolts is a material specification for fasteners that can endure high temperatures, such as bolts, studs, nuts, and other fasteners. The tensile and stress rupture characteristics of ASTM A320 Grade L7 are distinct for each of the four property classes—A, B, C, and D.

  • ASTM A320 Grade L7A Bolts: ASTM A320 Grade L7A Boltsis a material standard for alloy steel bolting components used on low-temperature pressure vessel valves, flanges, and fittings.


  • ASTM A320 Grade L7B Bolts: ASTM A320 Grade L7B Bolts The material, which is chemically identical to ASTM B638 grade 660 stainless steel alloy, also known as alloy A286 and UNS S66286 is heat treated to achieve the qualities defined in ASTM A453 standard. ASTM A320 Grade L7B (AISI 4140/AISI 4140H) is a notch toughened and heat treated chromium-molybdenum alloy steel.


  • Astm A193 B7 Bolts : Astm A193 Grade B7 Bolts is a specification for high-temperature resistant bolts, studs, nuts, and other fasteners' substance. The lowest temperature at which this grade is meant to be used, - 150° F, has a minimum Charpy impact value of 20 ft. lbs.


Astm A193 B7 Bolts Manufacturers

Ananka Group are the top Astm A320 L7 Bolts India's manufacturers. We are one of the leading a320 l7 stud bolts manufacturers and suppliers in India. We rigorously test the quality of all our products at every level, from raw material acquisition to production, storage, and delivery.

We are also one of the most well-known Astm A193 B7 Bolts manufacturers .The ASTM A320 L43 and a193 b7 stud bolt may also be used in settings with -150oF ambient temperatures.We have a large area dedicated to product manufacture and storage.


Product Page: Astm A193 Grade B7 Bolts