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Punit Fasteners proudly presents ASTM A193 B8 CL2 Stud Bolts, designed for high-temperature and high-pressure applications. Made from 304 stainless steel, these bolts offer exceptional strength and corrosion resistance, meeting the stringent requirements of the oil, gas, and chemical industries. Our B8 CL2 Stud Bolts ensure reliable performance and longevity, making them the ideal choice for critical applications. Trust Punit Fasteners for superior quality and unmatched durability in fastening solutions.
Punit Fasteners is a well-known producer and supplier of ASTM A193 B8 CL2 Stud Bolts, offering customers in Delhi and all over India high-quality fastening solutions. To satisfy the strict Class 2 mechanical requirements, these stud bolts are made from premium austenitic stainless steel (Type 304), which has been specially strain-hardened. They are extensively utilised in the petrochemical, power generation, and refinery industries and are made for high-pressure and high-temperature service. Punit Fasteners offers products with exceptional mechanical strength, durability, and corrosion resistance that meet international quality standards. In accordance with customer requirements, we offer these stud bolts in a range of sizes, threads, and coatings.
| Element | B7 | B8 | B8M |
| 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 |
| B7 | 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 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 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 |
|
Material |
Specification |
Standards |
Size
|
Length |
|
ASTM A193 B8 CL2 StudBolt
|
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.
Strain-hardened AISI 304 stainless steel is used to make ASTM A193 B8 CL2 Stud Bolts. Chromium (18–20%), nickel (8–12%), and iron make up the majority of their chemical makeup. Tiny amounts of carbon, manganese, silicon, phosphorus, and sulphur are also present. These bolts have a high mechanical strength and outstanding resistance to corrosion. A minimum tensile strength of 860 MPa, a yield strength of 690 MPa, and a minimum elongation of 15% are among the mechanical characteristics. Because Class 2 bolts are manufactured using a cold working process, they are noticeably stronger than Class 1 bolts.
For high-stress situations where strength and resistance to corrosion are crucial, ASTM A193 B8 CL2 Stud Bolts are perfect. These bolts play vital roles in petrochemical plants, oil and gas refineries, thermal power plants, and pharmaceutical processing facilities. They are frequently found in pressure vessels, heat exchangers, valves, flanges, and pipeline systems. They are appropriate for high-pressure steam, chemical exposure, and high-temperature environments due to their improved mechanical strength and resistance to oxidation. For tough industrial settings, Punit Fasteners offers these stud bolts in a range of threading types and lengths, guaranteeing a reliable and long-lasting fastening solution.
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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