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Mazin Fasteners, based in Muscat, Oman, stands out as a trusted manufacturer and supplier of top-notch industrial fastening solutions, including ASTM A193 B8 CL2 fasteners. These fasteners are crafted to meet international standards and are celebrated for their precision, strength, and resistance to corrosion. Built to perform reliably in tough conditions, ASTM A193 B8 CL2 fasteners find their place in various industries like oil and gas, petrochemical, power generation, and construction. Thanks to advanced manufacturing techniques and rigorous quality control, Mazin Fasteners ensures that their products deliver safety, durability, and long-lasting reliability.
Made from austenitic stainless steel enriched with chromium and nickel, ASTM A193 B8 CL2 fasteners boast impressive resistance to corrosion and oxidation. The Class 2 designation signifies that the material is solution-annealed and strain-hardened, providing a solid balance of strength, toughness, and ductility. These fasteners are known for their dependable tensile strength, good fatigue resistance, and consistent performance even at higher temperatures. Their mechanical properties make them ideal for applications that require corrosion resistance and reliable performance, rather than just extreme strength.
| Element | B7 | B8 CL2 | B8 CL2M |
| 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 CL2 Class 1 | All | 75 | 30 | 30 | 50 |
| B8 CL2M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 CL2 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 | |
| B8 CL2M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8 CL2 Fasteners
|
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 fasteners are extensively used in high-temperature and high-pressure environments, such as chemical processing, petrochemical, and power generation industries. Their excellent corrosion resistance and high tensile strength make them ideal for securing reactors, heat exchangers, and pressure vessels. These fasteners are also suitable for marine applications and construction projects requiring robust and reliable fastening solutions. Their compliance with stringent ASTM standards ensures they meet the demanding requirements of critical industrial applications.
You’ll often find ASTM A193 B8 CL2 fasteners in flanged joints, pipelines, pressure vessels, and various industrial assemblies. They’re particularly well-suited for chemical processing equipment, refineries, power plants, and marine settings where corrosion and heat resistance are crucial. These fasteners create secure and durable joints, even in high-temperature and mildly corrosive environments. Because of their reliability and versatility, ASTM A193 B8 CL2 fasteners are a popular choice for standard-duty industrial applications that demand proven performance and durability.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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