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Mira Fasteners is a reliable manufacturer and supplier of ASTM A193 B8M Stud Bolts, proudly based in Kuala Lumpur, Malaysia. These stainless steel stud bolts are crafted for exceptional corrosion resistance and find their place in critical environments like marine, chemical processing, water treatment, and offshore applications. At Mira Fasteners, every stud bolt is rigorously tested to meet international standards, thanks to our strict quality control and precise manufacturing processes. With a commitment to timely delivery and technical reliability, we’ve earned a reputation as a trusted name throughout Malaysia and Southeast Asia for top-notch fastening solutions.
Our ASTM A193 B8M Stud Bolts are made from AISI 316 stainless steel, which includes 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. The molybdenum content significantly boosts their resistance to pitting and crevice corrosion, particularly in environments rich in chlorides and acids. These stud bolts typically boast a tensile strength of around 515 MPa, along with excellent ductility, oxidation resistance, and non-magnetic properties when in the annealed state. Designed to work seamlessly with compatible nuts, they offer a robust and corrosion-resistant solution for high-pressure and high-temperature bolted assemblies.
| 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.
You’ll often find ASTM A193 B8M Stud Bolts in heat exchangers, pressure vessels, flanged piping systems, and equipment that faces harsh or corrosive conditions. Their durability and resistance to corrosion make them perfect for long-term use in coastal, marine, or chemically exposed environments where standard alloy fasteners might not hold up. These stud bolts guarantee secure connections, minimize maintenance needs, and deliver lasting performance in demanding industrial settings. Whether you’re working on new projects or looking for replacements, B8M stud bolts are your go-to choice for reliable fastening in extreme service conditions.
Mira Fasteners ensures that ASTM A193 B8M stud bolts are meticulously packaged to maintain their quality and integrity. Each bolt is individually inspected and then securely packed in robust, moisture-resistant materials to prevent damage during transit. Packaging options include sturdy cartons or wooden crates, depending on order size and customer specifications. The packaging also features clear labeling for easy identification and traceability, ensuring that the bolts reach their destination in optimal condition.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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