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Punit Fasteners, a reputable manufacturer and supplier located in Delhi, India, specializes in top-notch ASTM A193 B8 CL5 Fasteners that are perfect for high-performance applications across various industries, including petrochemical, power generation, construction, and marine. These fasteners are crafted from austenitic stainless steel, which offers exceptional corrosion resistance, strength, and durability, even in extreme temperatures and harsh environments. Built to comply with stringent ASTM standards, ASTM A193 B8 CL5 Fasteners are the go-to choice for critical bolting applications, ensuring secure and long-lasting connections. Punit Fasteners prides itself on delivering precision-engineered products that promise reliability for industrial and commercial projects around the globe.
The ASTM A193 B8 CL5 Fasteners are made from a stabilized austenitic stainless steel alloy, which is generally comparable to Type 304 stainless steel, containing about 18–20% chromium and 8–10.5% nickel. Class 5 fasteners are strain-hardened to boost their tensile and yield strength while maintaining their corrosion resistance. With a tensile strength of roughly 860 MPa and a yield strength of around 690 MPa, these fasteners are well-suited for high-pressure and high-temperature applications. Their outstanding resistance to oxidation and scaling further solidifies their reliability in challenging conditions.
| Element | B8 CL5 | B8 CL5 | B8M CL5 |
| 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% |
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Material
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Specification
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Standards |
Size
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Length
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ASTM A193 B8 CL5 Fasteners
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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 CL5 fasteners are widely used in high-temperature and high-pressure environments, making them ideal for the petrochemical, power generation, and aerospace industries. They are commonly employed in applications such as pressure vessels, gas turbines, and steam generators where durability and resistance to extreme conditions are critical. Their robust properties also make them suitable for use in chemical processing plants and other demanding industrial settings, ensuring reliable performance and safety.
You’ll find ASTM A193 B8 CL5 Fasteners widely utilized in industries that demand high-strength and corrosion-resistant bolting solutions. In the petrochemical and power generation fields, they’re commonly used in flanges, valves, boilers, and heat exchangers that face elevated temperatures and aggressive chemicals. The construction and marine sectors rely on them for structural connections, offshore platforms, and coastal installations, thanks to their durability in humid and salt-laden environments. These fasteners ensure dependable performance and a long service life, providing secure and stable assemblies in critical industrial applications.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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