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ASTM A193 B8C fasteners represent a refined fusion of metallurgical control and industrial-grade resilience — crafted from stabilized 347 stainless steel to conquer environments driven by heat, pressure, and corrosive chemistry. Hazlewood Fasteners in Canberra, Australia delivers these high-performance fastening solutions to industries where reliability cannot bow to thermal stress or chemical attack. B8C fasteners thrive in harsh process conditions, fortified with niobium/columbium stabilization to resist carbide precipitation and maintain structural integrity at soaring temperatures. In refineries, chemical plants, and energy systems, these fasteners anchor critical components with unwavering dependability and engineered strength.
Forged from columbium-enhanced 347 stainless steel, ASTM A193 B8C fasteners exhibit exceptional resistance to intergranular corrosion under sustained high-temperature exposure. Their chromium-nickel matrix delivers powerful oxidation resistance and superior mechanical retention in demanding thermal cycles. Heat-treated or strain-hardened variants offer increased tensile and yield strength, while precise threading ensures steadfast torque retention and vibration endurance. Built to endure high-pressure, corrosive, and thermally volatile environments, these fasteners guarantee robust load-bearing stability and fatigue strength across intense operational lifespans.
| Element | B8C |
| Carbon | 0 – 0.08% |
| Manganese | 0 – 2.00% |
| Phosphorus, max | 0 – 0.045% |
| Sulfur, max | 0 – 0.030% |
| Silicon | 0 – 1.0% |
| Chromium | 19.0 – 9.0% |
| Nickel | 12.0 – 0% |
| Molybdenum | – |
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | 515 |
| Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | 205 |
| Elongation in 4D (El) | 30 |
| Reduction | 50 |
| Hardness – (BHN) | 0 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8C 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 B8C fasteners are tailored for high-temperature, corrosive industrial duties where equipment reliability defines safety and performance. They are widely utilized in refinery systems, power generation units, boiler assemblies, heat exchangers, exhaust manifolds, petrochemical piping networks, and chemical processing vessels. Their stabilized stainless microstructure prevents thermal breakdown and corrosion, making them indispensable for securing flanges, turbines, valves, superheater components, and reactor installations. In applications where thermal shock, steam, and chemical concentration ruthlessly test fasteners, B8C hardware stands resilient — guaranteeing long-term integrity in mission-critical engineering environments.
At Hazlewood Fasteners, we prioritize the quality and integrity of our ASTM A193 B8C fasteners by employing meticulous packaging standards. Each fastener undergoes thorough inspection and is securely packed in durable, tamper-proof containers to prevent transit damage. Our packaging includes industry-standard labeling for easy identification and traceability. Designed to shield the fasteners from environmental factors, our packaging solutions ensure that the products arrive in pristine condition, ready for immediate use in critical high-temperature and high-pressure applications.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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