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ASTM A193 B8 CL4 Fasteners are essential in various applications that require both corrosion resistance and high-strength fastening solutions. They find common use in industries such as chemical processing, petrochemical plants, oil and gas facilities, and power generation. These fasteners are typically employed in flanges, valves, pressure vessels, heat exchangers, and piping systems that operate under high temperature and pressure. Their outstanding resistance to corrosion and ability to withstand extreme conditions make them a go-to choice for engineers and manufacturers alike.
ASTM A193 B8 CL4 Fasteners are crafted from solution-treated and strain-hardened austenitic stainless steel, which is comparable to Type 304 stainless steel. This unique composition grants them exceptional resistance to both corrosion and oxidation. Class 4 fasteners boast higher tensile and yield strength than their lower-class counterparts, making them ideal for high-temperature and high-pressure applications. They also display impressive toughness, ductility, and fatigue resistance. Their ability to maintain strength under thermal stress ensures they perform reliably in demanding industrial settings.
| Element | B8 CL4 | B8 CL4 | B8M CL4 |
| 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% |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
|
Material |
Specification |
Standards |
Size |
Length |
|
ASTM A193 B8 CL4 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 CL4 Fasteners are essential in various applications that require both corrosion resistance and high-strength fastening solutions. They find common use in industries such as chemical processing, petrochemical plants, oil and gas facilities, and power generation. These fasteners are typically employed in flanges, valves, pressure vessels, heat exchangers, and piping systems that operate under high temperature and pressure. Their outstanding resistance to corrosion and ability to withstand extreme conditions make them a go-to choice for engineers and manufacturers alike.
We ensure that our ASTM A193 B8 CL4 fasteners are carefully installed to ensure integrity during transit. Each packaging is individually inspected and then treated with preservatives to prevent corrosion. Our packaging includes clearly labeled boxes with detailed product information for easy identification and tracking. We prioritize safe and effective packaging to ensure our fasteners arrive in perfect condition, ready for immediate use on your critical projects.
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