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The Fasteners Mart, a leading Mumbai, India-based manufacturer and supplier, offers a wide range of high-quality fasteners for use in a variety of applications across different industries. Specializes in long-lasting and reliable products, we supply ASTM A193 B8 CL3 bolts, made from high-quality chromium-nickel steel. These bolts are famous for having superior strength, corrosion-resistant properties, and high-temperature and pressure-resistant capabilities, which make them suitable for extreme environments. Our commitment to quality and accuracy is what makes our fasteners the best of performance and durability.
ASTM A193 B8 CL3 bolts are produced from austenitic stainless steel that consists primarily of 18-20% chromium and 8-12% nickel with small amounts of manganese, silicon, carbon, and sulfur. The bolts possess high corrosion resistance, high tensile strength, and high durability under extreme environments. The mechanical properties include a minimum yield strength of 30,000 psi (205 MPa) and a minimum tensile strength of 75,000 psi (515 MPa). ASTM A193 B8 CL3 bolts with their excellent creep and stress rupture resistance are appropriate for pressure and high-temperature applications and give steady performance in critical conditions.
| Element | B8 CL3 | B8 CL3 | B8M CL3 |
| 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 |
| B8 CL3 | 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 |
| B8M CL3 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 | |
| B8M CL3 Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 – 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 – 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 – 1-1/2 | 90 | 50 | 30 | 45 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8 CL3 Bolt
|
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 CL3 bolts are widely used in those sectors where there is a requirement of high-strength, corrosion-resistant fasteners for high-temperature and high-pressure applications. These bolts are commonly used in power plant, chemical processing, petrochemical, and oil and gas sectors where there is a requirement of consistent performance. They are perfectly adaptable to use within pressure vessels, reactors, heat exchangers, and turbines driven by steam. Due to their enhanced strength under creep conditions, rupture, and oxidation conditions, ASTM A193 B8 CL3 bolts are able to demonstrate steady and persistent performance when faced with abusive conditions. They may be optimally adjusted towards both static as well as dynamic functions within intensive industrial environments.
ASTM A193 B8 CL3 bolts are duly packaged in wooden crates, boxes, or shrink-wrapped bundles to prevent any damage during transit in order to reach safely. Each batch undergoes rigorous testing, including visual inspection, dimensional check, and mechanical property tests like tensile strength and hardness testing. Corrosion resistance is also checked to make sure it conforms to industry standards. The testing makes sure that every bolt is up to the specs required for high performance and durability under extreme applications.
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