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Mira Fasteners, a reputable manufacturer and supplier located in Kuala Lumpur, Malaysia, specializes in top-notch ASTM A193 B8 CL3 Fasteners that are perfect for tough industrial applications. Crafted from high-quality austenitic stainless steel, these fasteners undergo a solution-annealing process to provide outstanding corrosion resistance, mechanical strength, and durability. They’re particularly suited for high-pressure and high-temperature environments, making them a go-to choice in sectors like petrochemical, oil and gas, marine, and power generation. With meticulous engineering and strict adherence to ASTM specifications, Mira Fasteners ensures that their ASTM A193 B8 CL3 Fasteners deliver reliable performance and longevity in critical settings.
These fasteners are made from AISI 304 stainless steel, which is solution-annealed to boost ductility, toughness, and corrosion resistance. They showcase impressive tensile and yield strength, along with excellent resistance to oxidation at high temperatures. Thanks to their chemical makeup, rich in chromium and nickel, they offer exceptional protection against rust and chemical damage. The CL3 grade is particularly prized for its enhanced low-temperature impact toughness compared to other grades. These fasteners maintain their stability under mechanical stress, making them ideal for both static and dynamic load applications.
| Element | B7 | B8 CL3 | B8 CL3M |
| 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 CL3 Class 1 | All | 75 | 30 | 30 | 50 |
| B8 CL3M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 CL3 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 3 | Up to 3/4 | 110 | 95 | 15 | 45 |
Material | Specification | Standards | Size | Length |
ASTM A193 B8 CL3 Fasteners | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
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ASTM A193 B8 CL3 fasteners are widely used in high-temperature and high-pressure environments, making them ideal for the petrochemical, aerospace, and power generation industries. They are commonly found in gas turbines, exhaust systems, and high-stress equipment where reliability and strength are crucial. Their excellent corrosion resistance also makes them suitable for harsh chemical environments and offshore applications. These fasteners ensure secure, long-lasting connections in critical and demanding applications.
ASTM A193 B8 CL3 Fasteners are widely used to secure flanges, valves, pressure vessels, and piping systems in environments that require both strength and corrosion resistance. In oil refineries and chemical plants, they can handle aggressive substances and extreme temperatures. In marine engineering, they stand up to saltwater corrosion, ensuring long-lasting structural integrity. Power generation facilities depend on them for critical components like turbines, boilers, and heat exchangers. Their reliable performance, even in harsh conditions, makes them a top choice for industries where safety, efficiency, and reliability are essential.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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