The Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength is the ASTM International standard for heavy hex structural bolts. It specifies mechanical characteristics for bolts with a diameter ranging from 12 to 1+12 inches (13 to 38 mm).
The ASTM A325M, Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength, is the comparable metric standard. For sizes M12 to 36, it defines mechanical characteristics.
How to Identify High Tensile Bolt Grade Differences
There are many applications that call for high levels of strength, and high tensile bolt grades are employed in these applications. These bolt grades are classified based on tensile strength and other factors. The optimum bolt for your specific application may be chosen with help from an understanding of the variations between high tensile bolt grades. Using the following guidelines, you can distinguish between different 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 equivalent to ASTM B638 grade 660 stainless steel alloy, is heat treated to attain the properties specified in ASTM A453 standard. The substance is also known as alloy A286 and UNS S66286. A notch hardened and heat treated chromium-molybdenum alloy steel is known as ASTM A320 Grade L7B (AISI 4140/AISI 4140H).
- Astm A193 B7 Bolts : Astm A193 Grade B7 Bolts is a standard for the composition of fasteners such as nuts, bolts, and studs that can withstand high temperatures. The minimal Charpy impact value for this grade, which is intended for usage at -150° F, is 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