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Puri Fasteners, a reputable manufacturer and supplier based in Chennai, specializes in high-quality Stainless Steel 446 Stud Bolts that are perfect for high-strength and corrosion-resistant fastening in tough industrial settings. These bolts are celebrated for their outstanding mechanical stability, durability, and ability to withstand high-temperature oxidation and harsh environments, ensuring they perform reliably even under extreme conditions. Crafted with precision and in line with strict quality standards, Puri Fasteners guarantees consistent dimensions, exceptional strength, and a long service life. These Stainless Steel 446 Stud Bolts are commonly found in industries like petrochemical, power generation, marine, and chemical, providing secure and efficient fastening solutions that are essential for industrial machinery, pipelines, and structural assemblies.
Made primarily from a ferritic stainless steel alloy with about 23% chromium and 1% molybdenum, these bolts are designed to enhance high-temperature strength and corrosion resistance. They boast impressive mechanical properties, including high tensile and yield strength, good hardness, and resistance to oxidation and scaling at elevated temperatures. Thanks to their ferritic structure, they offer strong dimensional stability, resistance to thermal fatigue, and excellent performance in chloride-rich or aggressive chemical environments, making them a top choice for long-term industrial applications that require both strength and reliability.
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | N | |
| 446 | min. | – | – | – | – | – | 23.0 | – | – | 0.10 |
| max. | 0.20 | 1.5 | 0.75 | 0.040 | 0.030 | 30.0 | 0.50 | 0.25 | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 446 | 485 | 275 | 20 | 92 | 201 |
| 446 Stud Bolt Specifications | ASTM A /SA 193 / 194 |
| 446 Stud Bolt Dimensions | ASTM,DIN, BS,GB, IS and all International Standards |
| 446 Stud Bolt Length | 3 mm to 200 mm |
| 446 Stud Bolts Size | M02 to M33 | Custom Sizes |
| 446 Stud Bolt Type | Stud Bolts, Heavy Stud bolt, Tie Bar, Tie Rod, Continuous Threaded Stud Bolts (Fully Threaded Studs without Chamfered Ends), Tap End Stud Bolts, Double End Stud Bolts, Double End Stud Bolts with Reduced Shank, Flange Stud Bolts (Fully Threaded Studs with Chamfered Ends), MS Stud Bolts, Metric Thread Stud Bolt, Rough Forged Stud Bolts, Stud Half Thread Bolts etc. |
| 446 Stud Bolts Coating |
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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.
Stainless Steel 446 Stud Bolts are extensively used in high-temperature and corrosive environments, such as boilers, heat exchangers, furnace components, and superheater assemblies in power plants. They’re also utilized in chemical processing equipment, petrochemical facilities, and marine structures that face saline conditions. Furthermore, these stud bolts are perfect for securing high-temperature piping systems, pressure vessels, and mechanical equipment in demanding industrial settings. Their durability, resistance to scaling and corrosion, and ability to maintain performance make them an ideal choice for various applications.
We provide full documentation through our Stainless Steel 446 Stud Bolts to ensure complete transparency and quality control. This includes commercial invoices, packaging documents, thermal operating systems, fume certificates, and quality control systems. In addition, we provide NABL-approved laboratory test reports, MTC according to EN 10204/3.1b, PMI test certificates, 100% radiography test reports, and third-party inspection certificates. Our complete documentation underscores our commitment to excellence and customer satisfaction.
Puri Fasteners is a leading manufacturer and supplier of high-quality fasteners in Chennai, India, with over 8 years of experience serving global industries.
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