You are currently viewing Understanding of ASTM A194 Grade B8TA Nut Fasteners

Understanding of ASTM A194 Grade B8TA Nut Fasteners

Demystifying ASTM A194 Grade B8TA Nut Fasteners

When it comes to fasteners used in critical applications, such as those in the oil and gas industry, power generation, and petrochemical plants, the choice of materials and standards is of utmost importance. ASTM A194 Grade B8TA is a specification that many professionals in these industries are familiar with. In this blog, we will explore what ASTM A194 Grade B8TA nut fasteners are, their properties, and their applications.

What is ASTM A194 Grade B8TA Nut Fasteners?

ASTM A194 is a standard specification for carbon and alloy steel nuts used in conjunction with bolts, studs, and other externally threaded fasteners. These nuts are designed for high-temperature, high-pressure applications, making them suitable for use in industries with stringent requirements.

ASTM A194 Grade B8TA is a specific grade of nuts within the A194 standard. The “B8” designation indicates that these nuts are made from stainless steel alloy, and the “TA” suffix signifies the specific heat treatment and material composition.

Properties of ASTM A194 Grade B8TA Nuts

1. Material: ASTM A194 Grade B8TA nuts are made from stainless steel. More precisely, they are typically manufactured from AISI 321 stainless steel. AISI 321 is a heat-resistant, corrosion-resistant stainless steel with excellent mechanical properties.

2. Heat Treatment: The “TA” designation in Grade B8TA specifies the heat treatment process. These nuts undergo a solution annealing treatment followed by a quench and temper process. This heat treatment ensures the nuts’ mechanical properties meet the required standards.

3. Mechanical Properties: ASTM A194 Grade B8TA nuts exhibit excellent tensile strength, yield strength, and elongation. They are designed to withstand high-pressure and high-temperature conditions, making them suitable for use in critical applications.

4. Corrosion Resistance: Stainless steel, including AISI 321, is known for its exceptional corrosion resistance. Grade B8TA nuts are highly resistant to corrosion, which is essential for applications where exposure to harsh environments and chemicals is common.

Applications of ASTM A194 Grade B8TA Nuts

The unique properties of ASTM A194 Grade B8TA nuts make them well-suited for a range of applications in industries where high-temperature and high-pressure conditions are prevalent. Some common applications include:

1. Petrochemical Industry: Grade B8TA nuts are used in pipelines, pressure vessels, and reactors, where they must withstand corrosive chemicals and high temperatures.

2. Oil and Gas Industry: In offshore drilling and refining facilities, these nuts are used to secure critical components that require resistance to seawater and extreme conditions.

3. Power Generation: Power plants, especially those utilizing steam and high-temperature gases, rely on ASTM A194 Grade B8TA nuts to secure components like turbine generators and boilers.

4. Chemical Processing: Chemical plants often handle aggressive substances, and these nuts are essential for maintaining the integrity of equipment and pipelines.

5. Aerospace: In aerospace applications, these nuts are used in engine components and exhaust systems, where high temperatures and stress are a constant concern.


ASTM A194 Grade B8TA nuts are vital components in industries where high-temperature and high-pressure conditions are prevalent. Their exceptional material properties, heat treatment, and corrosion resistance make them a reliable choice for securing critical components in various applications. When selecting fasteners for projects in demanding environments, considering the specifications of ASTM A194 Grade B8TA is a wise decision to ensure the safety and reliability of your installations.

Bhansali Metalloys Inc is one of the leading Manufacturer, Exporters, and Suppliers of High Quality ASTM A194 Grade B8TA Nut all over in India. We are Manufacturer, Supplier and Dealer of various types of Fasteners such as Bolts, Nuts, Screws, Washers, Threaded Rods and many more. We are ASTM A194 Grade B8TA Nut Manufacturer in India. These Fasteners are available in different grades and materials. We are ASTM A194 Grade B8TA Nut Manufacturer, Supplier, Dealer, and Exporter in India. We are ASTM A194 Grade B8TA Nut Supplier in India. Contact Us +919152160158 or email to for ASTM A194 Grade B8TA Nut price list.

For our full list of products that we offer check out our website here. Be sure to join the conversation in our Facebook, Instagram, Twitter, LinkedIn Group.

Each Stainless Steel ASTM A194 Grade B8TA is otherwise designed based on the characteristics of the applying and additionally the pressure. Consequently, different industries use different ASTM A194 Grade B8TA. We also produce customized ASTM A194 Grade B8TA Products at our factory as per our client’s requirements. For any types of ASTM A194 Grade B8TA Price List Call on +91 9152160158 or drop an Email to |

We Export Across the Globe

Exports in Asia Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Brunei Darussalam, Cambodia, China, Georgia, Hong Kong, India, Indonesia, Japan, Kazakhstan, South Korea, Kyrgyzstan, Laos, Macao, Malaysia, Maldives, Mongolia, Myanmar (ex-Burma), Nepal, Pakistan, Phillipines, Singapore, Sri Lanka (ex-Ceilan), Taiwan, Tajikistan, Thailand, Timor Leste (West), Turkmenistan, Uzbekistan, Vietnam.

Export to Africa Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Malawi, Mauritius, Mayotte, Mozambique, Reunion, Rwanda, Seychelles, Somalia, Tanzania, United Republic of Uganda, Zambia, Zimbabwe, Angola, Cameroon, Central African Republic, Chad, Congo (Brazzaville), Congo, Democratic Republic of the Equatorial Guinea, Gabon, Sao Tome and Principe, Algeria, Egypt, Libyan Arab Jamahiriya, Morroco, South Sudan, Sudan, Tunisia, Western Sahara, Botswana, Lesotho, Namibia, South Africa, Swaziland, Benin, Burkina Faso, Cape Verde, Cote d’Ivoire (Ivory Coast), Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Mauritania, Niger, Nigeria, Saint Helena, Senegal, Sierra Leone, Togo.

Export to America Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Bonaire, Saint Eustatius and Saba, British Virgin Islands, Cayman Islands, Cuba, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Monserrat, Puerto Rico, Saint-Barthélemy, St. Kitts and Nevis, Saint Lucia, Saint Martin, Saint Vincent and the Grenadines, Sint Maarten, Trinidad and Tobago, Turks and Caicos Islands, Virgin Islands (US), Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Falkland Islands (Malvinas), French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela, Bermuda, Canada, Greenland, Saint Pierre and Miquelon, United States.

Export to the Middle East Bahrain, Iraq, Iran, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen.