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Our Mumbai, India-based company, Fasteners Mart, is a premier manufacturer and supplier of high-quality fasteners like ASTM A193 B8 CL2 stud bolts. Our stud bolts are made from austenitic stainless steel to provide superb corrosion resistance and superior strength at very high and low temperatures as well as pressures. Our ASTM A193 B8 CL2 stud bolts are of international quality and accurately suit oil and gas, petrochemical, and power generation applications. We, at The Fasteners Mart, always believe in delivering robust and sound products that are engineered to serve the specific needs of our customers.
ASTM A193 B8 CL2 stud bolts are made of austenitic stainless steel with 18% chromium and 8% nickel as the base composition. This composition is superior in corrosion and heat resistance. The mechanical properties of ASTM A193 B8 CL2 stud bolts include a minimum yield point of 30,000 psi (205 MPa) and a minimum tensile strength of 75,000 psi (515 MPa). These stud bolts also possess superior ductility, toughness, and stress resistance, hence being capable of being applied under high pressure and high temperature, such as in the oil and gas, chemical, and power generation industries.
| 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.
ASTM A193 B8 CL2 stud bolts have widespread use in industries that require high strength, durability, and corrosion resistance at elevated temperatures. They are applied in high-temperature and high-pressure systems such as oil and gas pipelines, petrochemical plants, power plants, and chemical process plants. They are extensively used to protect pressure vessels, heat exchangers, valves, and flanges. The excellent mechanical properties and resistance to harsh environments of ASTM A193 B8 CL2 stud bolts make them the first choice studs in critical service in industries where reliability and safety are of utmost importance for harsh environments
ASTM A193 B8 CL2 stud bolts are properly packaged to be shipped without damage and corrosion, using protective materials like plastic wraps or anti-corrosive paper. Each stud bolt is thoroughly tested to ASTM standards, including tensile strength, hardness, and corrosion resistance tests. Accuracy of dimensions and content of material is thoroughly inspected to meet specifications. These quality control measures are cleared only after which stud bolts are packed and shipped in a manner so that they meet the highest performance standards in tough applications.
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