ASTM Bolts and Their Varieties and Grades

High tensile bolt definition


High tensile bolts are utilised in high-stress fastening applications. In the industrial environments related to building, for instance, high tensile bolts are widely utilised. For many years or perhaps decades, these sturdy bolts maintain the weight of enormous items by keeping them together and bearing their weight.

How to Identify the Differences Between High Tensile Bolt Grades

The grade or strength of a fastener may usually be ascertained by looking at the marks on the bolt’s head. English bolts (U.S.S. or S.A.E.) come in grades ranging from grade 2 to grade 8, where grade stands for inch strength.

Different ASTM Bolt Types

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 BoltsASTM A320 Grade L7 Bolts is a material specification for bolts, studs, nuts, and other fasteners that can withstand high temperatures. Each of the four property classes—A, B, C, and D—in ASTM A320 Grade L7 has its own unique set of tensile and stress rupture properties.
  • ASTM A320 Grade L7A BoltsASTM A320 Grade L7A Bolts is a material specification for alloy steel bolting materials used on valves, flanges, and fittings for low-temperature pressure vessels.
  • ASTM A320 Grade L7B BoltsASTM A320 Grade L7B Bolts Material is heat treated to attain the qualities specified in ASTM A453 standard and is chemically identical to ASTM B638 grade 660 stainless steel alloy, commonly known as alloy A286 and UNS S66286. Chromium-molybdenum alloy steel with notch toughening and heat treatment is known as ASTM A320 Grade L7B (AISI 4140/AISI 4140H).
  • Astm A193 B7 Bolts : Astm A193 Grade B7 Bolts is a material standard for bolts, studs, nuts, and other fasteners that can withstand high temperatures. This grade has a minimum Charpy impact value of 20 ft. lbs. at minus 150° F, which is the lowest temperature at which it is intended to be used.

Astm A193 B7 Bolts Manufacturers

Ananka Group is the largest astm a193 grade b7 One of the top quality nuts and bolts produced by an Indian company. We are the top High Tensile Nut Bolt Manufacturers in India.We are one of the leading Astm A193 Grade B7 Bolts Manufacturers in India and fasteners supplier.

We are also one of the most well-known High Tensile Bolts Manufacturers. We also Supplies A Full Range Of a193 b7 Bolts.We are the leading Astm A193 Grade B7 Bolts Manufacturers.The astm a193 grade b7 and ASTM A320 L7 Stud Bolts may also be used in environments with low ambient temperatures of -150oF. We also provide nut bolt weight chart in kg pdf to find the bolts best suited for your needs.

Also Visit :Astm A193 Grade B7 Bolts Manufacturer In India


When looking for bolt types, there are many possibilities accessible on the market, which makes the decision more difficult and perplexing. Additionally, certain bolts that have great strength when used with a particular material may not have the same strength when used with a different material. In order to ensure a smooth installation, it is essential to select the appropriate bolt type for your application.

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