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Aria Fasteners, located in Hamilton, New Zealand, stands out as a top-notch manufacturer and supplier of premium ASTM A193 B8 fasteners, which include bolts, stud bolts, nuts, and washers. These fasteners are crafted to deliver exceptional strength, durability, and reliability, making them perfect for tough industrial settings. They consistently perform well even under high pressure, extreme temperatures, and corrosive conditions. At Aria Fasteners, we prioritize quality, ensuring that all our products meet rigorous standards, so you can trust that our fasteners will maintain their structural integrity and reliability over time. With a focus on precision and safety, ASTM A193 B8 fasteners are the go-to choice for critical assemblies in industrial, chemical, and petrochemical sectors.
Made from austenitic stainless steel, usually 304, ASTM A193 B8 fasteners boast impressive corrosion resistance, high tensile strength, and outstanding toughness. They are designed to withstand oxidation, pitting, and stress corrosion cracking, making them ideal for high-temperature and aggressive environments. Their mechanical stability under load and vibration guarantees secure fastening, which helps maintain structural integrity and minimizes maintenance needs in demanding applications.
| 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 | |
| B8M 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 Fasteners
|
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 fasteners are widely used in high-strength applications and require corrosion resistance. Typical applications include oil refineries, power plants, and the marine environment. Components are protected in areas of high pressure and high temperatures such as valves, flanges, and fittings. Their austenitic stainless steel design ensures durability and reliability, making them ideal for use in harsh chemical and industrial applications These fasteners meet industry standards a strength, improving safety and performance in critical areas.
These fasteners find extensive use in the oil and gas industries, power generation, chemical processing, petrochemical equipment, and high-pressure piping systems. They are particularly suited for flange connections, pressure vessels, and critical bolted assemblies where reliability, strength, and corrosion resistance are paramount. With ASTM A193 B8 fasteners from Aria Fasteners, you can expect long-lasting performance that ensures safety, durability, and optimal operation even in the most challenging industrial environments.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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