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Yasin Fasteners, a well-respected manufacturer and supplier located in Istanbul, Turkey, is committed to delivering top-notch fastening solutions like the ASTM A193 B8T Nuts. These nuts are crafted in line with international standards, ensuring they are built for durability, precision, and reliability. Renowned for their superior resistance to corrosion and outstanding performance in high-temperature settings, ASTM A193 B8T Nuts are a go-to choice for critical applications around the globe. Yasin Fasteners prioritizes quality assurance, timely delivery, and customer-centric solutions, making these nuts a perfect fit for industries such as petrochemical, oil and gas, chemical processing, and power generation.
ASTM A193 B8T Nuts are made from Type 321 stainless steel, an austenitic grade that’s stabilized with titanium. Their composition features 17–19% chromium, 9–12% nickel, titanium (≥5xC), ≤0.08% carbon, ≤2% manganese, and ≤1% silicon. The addition of titanium enhances their resistance to intergranular corrosion, especially after exposure to high temperatures. These nuts boast a minimum tensile strength of 75 ksi and a yield strength of 30 ksi, providing excellent toughness and ductility at both high and low temperatures. Their mechanical stability guarantees long-lasting fastening performance even in the most demanding operational environments.
Element | B7 | B8 | B8M |
Carbon | 0.37 – 0.49% | 0.08% max | 0.08% max |
Manganese | 0.65 – 1.10% | 2.00% max | 2.00% max |
Phosphorus, max | 0.035% | 0.045% | 0.045% |
Sulfur, max | 0.040% | 0.030% | 0.030% |
Silicon | 0.15 – 0.35% | 1.00% max | 1.00% max |
Chromium | 0.75 – 1.20% | 18.0 – 20.0% | 16.0 – 18.0% |
Nickel | 8.0 – 11.0% | 10.0 – 14.0% | |
Molybdenum | 0.15 – 0.25% | 2.00 – 3.00% |
Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
2-5/8 – 4 | 115 | 95 | 16 | 50 | |
4-1/8 – 7 | 100 | 75 | 18 | 50 | |
B8 Class 1 | All | 75 | 30 | 30 | 50 |
B8M Class 1 | All | 75 | 30 | 30 | 50 |
B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
7/8 – 1 | 115 | 80 | 15 | 35 | |
1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | |
1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 | |
B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
7/8 – 1 | 100 | 80 | 20 | 45 | |
1-1/8 – 1-1/4 | 95 | 65 | 25 | 45 | |
1-3/8 – 1-1/2 | 90 | 50 | 30 | 45 |
Material | Specification | Standards | Size | Length |
ASTM A193 B8T Nuts
| IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
ASTM A193 B8T nuts are high-strength fasteners made of stabilized austenitic stainless steel, ideal for use in high-temperature corrosive environments. They are commonly used in electrical, petrochemical, and marine applications, including heating. Resistance to chemical stress is important. Their applications include protecting flanges, piping systems and pressure vessels. The B8T designation ensures superior abrasion and corrosion resistance, making these frames suitable for critical high-pressure assemblies that require reliable performance under demanding conditions.
ASTM A193 B8T Nuts find extensive use in industries that require high corrosion resistance and stability under varying thermal conditions. They are perfect for securing components in heat exchangers, pressure vessels, boilers, and turbine assemblies within power plants. In petrochemical and chemical processing facilities, these nuts are utilized in piping systems and flanged joints that come into contact with aggressive chemicals. They are also employed in oil and gas refineries, marine engineering, and high-temperature service equipment, where resistance to scaling, oxidation, and stress corrosion cracking is crucial. Their reliability ensures safe and efficient operations across various applications.
Yasin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Istanbul, Turkey, with over 8 years of experience serving global industries.
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