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Puri Fasteners, based in Chennai, stands out as a top manufacturer and supplier of high-quality SMO 254 Stud Bolts, specifically crafted for demanding applications in harsh, corrosive, and high-temperature settings. Known for their precision engineering and durability, Puri Fasteners guarantees that every SMO 254 stud bolt adheres to rigorous industry standards. These bolts are built to offer exceptional strength, long-lasting reliability, and impressive resistance to chloride-induced corrosion, making them perfect for critical industrial uses. Catering to sectors like chemical processing, petrochemical, marine, and pharmaceuticals, Puri Fasteners has earned a solid reputation for providing reliable fastening solutions, always prioritizing customer satisfaction and timely delivery.
SMO 254 Stud Bolts are crafted from a high-performance austenitic stainless steel alloy that includes around 20–22% chromium, 18–20% nickel, 6–7% molybdenum, and 0.2–0.5% nitrogen. This unique blend offers outstanding resistance to pitting, crevice, and chloride stress corrosion while ensuring high tensile and yield strength. The bolts are known for their exceptional toughness, hardness, and fatigue resistance, along with stability during thermal cycling and mechanical stress. Their mix of corrosion resistance and mechanical performance guarantees long-term reliability, making SMO 254 stud bolts ideal for challenging industrial environments.
| Grade | C | Ni | Si | N | S | Mn | P | Cr | Ce | Fe | |
| SS 254 SMO | min. | – | 17.5 | – | 0.18 | – | – | – | 19.5 | 0.03 | Balance |
| max. | 0.02 | 18.5 | 0.08 | 0.22 | 0.01 | 1.00 | 0.03 | 20.5 | 0.08 | ||
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 254 SMO | 650 | 35 | 300 | 50 | 270 |
Standard ASTM A193, A320 / ASME SA193, SA320
Dimensions DIN / ISO / ASME / ANSI / UNI / BS / BIS / SAE, etc.
Threads UNC, UNF, UNEF, UN, Coarse, Fine & BSW.
Type All Thread, Double End, Single End
Size Metric M1 to M152 & Imperial #0 to 8″ Bolt Diameter
Length Bolts upto 2500mm shank length.
Construction Hot Forged, Cold Forged, Bar Stock Machined
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.
SMO 254 Stud Bolts find extensive use in industries where strong and corrosion-resistant fastening is essential. In chemical and petrochemical facilities, they are utilized in reactors, heat exchangers, and piping systems that come into contact with aggressive chemicals. The marine and offshore sectors depend on these bolts for structures, pumps, and valves exposed to seawater, thanks to their remarkable chloride resistance. Additionally, pharmaceutical and food processing equipment also rely on these bolts for their hygienic and durable properties.
At Puri Fasteners, we pack our SMO 254 stud bolts in a manner that guarantees they get to the client in the best condition possible. Every stud bolt is covered and sealed in durable, moisture proof bags to ensure that they are not affected by other materials or moisture. Proper labeling helps in identification and management of items in a proper manner. Our packaging procedures ensure that the stud bolts are protected to retain their high quality and are readily available for use, a factor that is in line with our mission of providing quality products and excellent services.
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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