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ASTM A193 B6X Fasteners are high-strength alloy steel fasteners engineered for critical industrial applications where durability and reliability are essential. Manufactured from chromium-molybdenum alloy steel and heat-treated to achieve superior mechanical properties, these fasteners deliver exceptional tensile and yield strength. Ideal for high-temperature and high-pressure environments, B6X Fasteners are widely used in petrochemical plants, refineries, power generation units, and heavy industrial machinery. With precision manufacturing and strict quality control, these fasteners ensure long-term performance, secure connections, and operational safety. Industries trust ASTM A193 B6X Fasteners for reliable fastening in the most demanding conditions.
ASTM A193 B6X Fasteners are made from chromium-molybdenum alloy steel, which is heat-treated to enhance tensile and yield strength, hardness, and toughness. They exhibit excellent creep resistance, dimensional stability, and mechanical reliability under high temperature and high-pressure conditions. The B6X designation ensures that these fasteners meet strict mechanical property requirements for heavy-duty applications. They resist oxidation, wear, and thermal stress, providing long-term structural integrity. Their combination of strength, hardness, and thermal resistance makes ASTM A193 B6X Fasteners suitable for critical industrial equipment and demanding operating environments.
| Element | B6X |
| Carbon | 0 – 0.15% |
| Manganese | 0 – 1.00% |
| Phosphorus, max | 0 – 0.040% |
| Sulfur, max | 0 – 0.03% |
| Silicon | 0 – 1.00% |
| Chromium | 11.5 – 13.5% |
| Nickel | – |
| Molybdenum | 0.20-0.30% |
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | 620 |
| Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | 485 |
| Elongation in 4D (El) | 15 |
| Reduction | 50 |
| Hardness – (BHN) | 0 – 262 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B6X 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 B6X Fasteners are widely used in industries requiring high-strength, temperature-resistant, and durable fastening solutions. They are commonly applied in boilers, turbines, heat exchangers, pressure vessels, and high-pressure piping systems in power generation, petrochemical, and refinery sectors. Their superior mechanical properties make them ideal for flanged joints, valve assemblies, and structural connections exposed to extreme temperatures and pressures. Heavy machinery, industrial plants, and process equipment also benefit from B6X Fasteners due to their resistance to thermal cycling, mechanical stress, and wear. These fasteners provide secure, reliable, and long-lasting performance in critical applications.
We ensure the highest quality for our ASTM A193 B6X Fasteners through thorough testing before dispatch. Our tests include Hardness, Chemical Analysis via Spectro Analysis, PMI Testing, Flattening, Micro and Macro Tests, Pitting Resistance, Flaring, and IGC Tests. We also provide documents such as commercial invoices, packaging lists, Certificates of Origin, and Guarantee Letters. Additionally, third-party inspection certificates are available to confirm the quality and reliability of our ASTM A193 B6X Fasteners for various applications.
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