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Aria Fasteners, located in Hamilton, New Zealand, is your go-to source for top-notch ASTM A193 B8 CL2 stud bolts. These bolts are crafted with a focus on strength, precision, and reliability, making them perfect for high-pressure and high-temperature industrial settings. At Aria Fasteners, we take pride in ensuring that every stud bolt meets rigorous quality standards, so you can count on them for outstanding mechanical performance, precise dimensions, and impressive durability. Designed for critical applications, our ASTM A193 B8 CL2 stud bolts maintain their structural integrity and provide secure fastening in tough environments like chemical, petrochemical, and power generation sectors.
Made from austenitic stainless steel, usually 316, these stud bolts boast excellent corrosion resistance, high tensile strength, and remarkable toughness. The CL2 grade offers extra protection against chlorides, oxidation, and stress corrosion cracking, making them a fantastic choice for marine, chemical, and offshore applications. They hold up well under heavy loads, vibrations, and temperature changes, ensuring safe and dependable fastening in crucial assemblies.
| 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 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8 CL2 StudBolt
|
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 B8 CL2 Stud Bolts are essential in high-temperature and high-pressure applications, particularly in the oil, gas, and chemical industries. They are used to secure flanges, valves, and pressure vessels, ensuring reliable and leak-proof connections. These bolts are also employed in refineries, petrochemical plants, and power generation facilities due to their exceptional corrosion resistance and strength. Their durability and performance in extreme conditions make them indispensable for critical and demanding industrial applications.
You’ll find these stud bolts commonly used in chemical processing plants, the oil and gas industry, power generation, and high-pressure piping systems. They’re perfect for flange connections, pressure vessels, and other bolted assemblies where high corrosion resistance, strength, and reliability are a must. When you choose ASTM A193 B8 CL2 stud bolts from Aria Fasteners, you’re investing in long-lasting performance, structural integrity, and lower maintenance needs, making them a top pick for demanding industrial environments.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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