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Mira Fasteners, located in Kuala Lumpur, Malaysia, stands out as a key player in manufacturing and supplying ASTM A193 B8 CL5 Nuts, providing dependable fastening solutions for essential industrial settings. Crafted from AISI 316 stainless steel, these nuts are strain-hardened to Class 2 condition and processed to fulfill the Class 5 standards of ASTM A193. Renowned for their exceptional corrosion resistance, particularly in marine and chemical processing environments, B8 CL5 nuts find extensive use in the petrochemical, oil & gas, power generation, and construction sectors. Mira Fasteners is committed to delivering precision quality and adhering to international standards for optimal performance.
ASTM A193 B8 CL5 Nuts are constructed from AISI 316 stainless steel, which includes about 16–18% Chromium, 10–14% Nickel, and 2–3% Molybdenum, all while maintaining low carbon content to boost corrosion resistance. These nuts undergo strain hardening to reach Class 5 strength levels, boasting a minimum tensile strength of approximately 860 MPa and a yield strength of 690 MPa. They excel in resisting pitting, crevice corrosion, and oxidation in environments rich in chlorides and high temperatures, making them perfect for highly corrosive and pressure-sensitive 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 B8T Bolts
| 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.
Mira Fasteners, a top manufacturer and supplier based in Kuala Lumpur, Malaysia, provides premium ASTM A193 B8T Bolts for critical industrial uses. These bolts are crafted from AISI 321 stainless steel, a titanium-stabilized austenitic stainless steel that offers outstanding resistance to intergranular corrosion and high-temperature conditions. Designed for applications in pressure vessels, heat exchangers, boilers, and chemical processing equipment, B8T bolts comply with the rigorous specifications of ASTM A193. Mira Fasteners guarantees precise manufacturing and thorough quality checks to deliver robust, high-performance fastening solutions to clients throughout Malaysia.
We uphold stringent quality standards for our ASTM A193 B8T Bolts, subjecting them to rigorous tests such as Hardness Test, Chemical Analysis via Spectro Analysis, PMI Testing, Flattening Test, Micro and Macro Tests, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test. Each order includes a commercial invoice, packaging list, Certificate of Origin, and Guarantee Letter. For added assurance, we offer third-party inspection certificates to validate the excellence and suitability of our bolts for various applications, ensuring client satisfaction.
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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