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The Fasteners Mart, located in Mumbai, India, is a prominent manufacturer and supplier of high-quality fasteners for various industries. We supply a wide range of fasteners, including ASTM A193 B8M stud bolts, which are well-known for their outstanding corrosion resistance, high tensile strength, and performance in severe applications. With top-class austenitic stainless steel material, our stud bolts are best suited for being in demanding environments such as chemical processing, power generation, and petrochemical plants. We at The Fasteners Mart keep accuracy, strength, and conformity to international standards intact for all our products
ASTM A193 B8M stud bolts are made from austenitic stainless steel that contains primarily 18% chromium and 8% nickel, making them more resistant to corrosion, oxidation, and high-temperature resistance. It also has small amounts of manganese, silicon, and carbon, which contribute to their durability and strength. These stud bolts possess excellent mechanical properties with minimum yield point of 30,000 psi (205 MPa) and tensile of 75,000 psi (515 MPa). ASTM A193 B8M stud bolts possess excellent endurance in harsh environments and high stress situations and are used for critical industry applications.
| Element | B8 | 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 B8M StudBolt
|
IS
BS
ASTM
|
DIN, ISO, JIS, GB, IS, BS, ASTM |
M 02 to M 160
|
3 mm to 200
|
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 B8M stud bolts have widespread usage in high-strength, corrosion-resistant, and trouble-free service in hostile environments. They are used throughout the chemical, petrochemical, power generation, and oil & gas industries for service in pressure vessels, heat exchangers, flanges, and piping. The stud bolts are ideal for severe environments where temperature, pressure, and corrosive factors are elevated. They also find uses in marine, food processing, and nuclear power applications. ASTM A193 B8M stud bolts ensure safety and durability, therefore, are utilized to fasten heavy machinery and equipment in severe conditions.
ASTM A193 B8M stud bolts are carefully packed to prevent damage during shipping, usually in wood crates, cardboard boxes, or plastic bins, with protective cushioning. Firm testing is applied to each batch, including visual examination, dimensional check, and mechanical property testing such as tensile strength, yield strength, and hardness. Corrosion resistance is also tested to determine compliance with industry standards. Test certificates and compliance documents accompany each shipment for the highest quality and reliability.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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