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Tilak Tubefittings is a reputable manufacturer and supplier of Super Duplex Steel Hydraulic Fittings located in Chennai, India. They provide high-performance flow control solutions to industries around the globe. These fittings are specifically designed for demanding hydraulic systems and are crafted using advanced machining techniques along with rigorous quality controls to guarantee exceptional strength, leak-free operation, and a long lifespan. Tilak Tubefittings boasts a wide variety of sizes and configurations that comply with international standards and cater to specific customer needs. Renowned for their reliability in high-pressure and harsh environments, the company’s Super Duplex Steel Hydraulic Fittings are perfect for critical applications where safety, durability, and corrosion resistance are paramount.
Super duplex steel hydraulic fittings are composed of chromium, nickel, molybdenum and nitrogen for enhanced corrosion resistance and strength They have exceptional mechanical properties with tensile strength of 800-950 MPa and yield strength of 550-650 MPa, making them suitable for high pressure applications These Fittings provide outstanding resistance to pitting, crevice corrosion and stress corrosion cracking even in aggressive environments. The combination of high strength, high hardness and excellent weldability ensures durability and reliability. Their low cost and corrosion resistance to chloride stress make them ideal for complex industrial applications.
| DESIGN STANDARD | DIN 2353/ ISO 8434-1 |
| MATERIAL | SUPER DUPLEX UNS S32750, UNS S32760 |
| SERIES | LL- LOW PRESSURE , L- MEDIUM PRESSURE, S- HIGH PRESSURE |
| WORKING PRESSURE | 1 BAR TO 700 BAR |
| SIZE RANGE | 6 MM TO 42 MM |
| CONNECTIONS | TUBE TO TUBE , TUBE TO MALE THREAD , TUBE TO FEMALE THREAD , TUBE TO BUTT WELD , TUBE TO SOCKET WELD , TUBE TO JIC 37* , TUBE TO 24* CONE, TUBE TO SWIVEL END , TUBE TO ADJUSTBALE STANDPIPE |
| WELD NIPPLE TO MALE THREAD , WELD NIPPLE TO FEMALE THREAD , WELD NIPPLE TO BUTT WELD , WELD NIPPLE TO SOCKET WELD , WELD NIPPLE TO 24* CONE , WELD NIPPLE TO 37* JIC , WELD NIPPLE TO SWIVEL | |
| BODY TYPE | FORGED, BAR STOCK |
| SURFACE | EXPORT BRIGHT FINISH, SHORT BLASTED FINISH, ELECTROPLATED FINISH |
| Grade | S32750 | S32760 |
| C | 0.030 max | 0.05 max |
| Mn | 1.20 max | 1.00 max |
| Si | 0.80 max | 1.00 max |
| P | 0.035 max | 0.030 max |
| S | 0.020 max | 0.010 max |
| Cr | 24.00 – 26.00 | 24.00 – 26.00 |
| Mo | 3.00 – 5.00 | 3.00 – 4.00 |
| Ni | 6.00 – 8.00 | 6.00 – 8.00 |
| N | 0.24 – 0.32 | 0.20 – 0.30 |
| Fe | 58.095 min | 57.61 min |
| Density (g/cm 3) | 7.8 |
| Density (lb/in 3) | 0.281 |
| Melting Point (°C) | 1350 |
| Melting Point (°F) | 2460 |
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex 2507 | 1.4410 | S32750 |
Super Duplex Steel Hydraulic Fittings are generally made from UNS S32750 or S32760 grades, showcasing a balanced microstructure that consists of about 50% austenite and 50% ferrite. This alloy is rich in chromium, molybdenum, nitrogen, and has controlled nickel content, which grants it remarkable corrosion resistance. In terms of mechanical properties, these fittings exhibit high tensile strength, excellent yield strength, and outstanding fatigue resistance. They also show exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, making them well-suited for high-pressure hydraulic applications.
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Super Duplex Steel Hydraulic Fittings find extensive use in industries where extreme pressure, corrosive substances, and tough operating conditions are the norm. Common applications include offshore oil and gas platforms, subsea hydraulic systems, chemical and petrochemical facilities, marine equipment, power generation, and desalination plants. They are particularly effective for hydraulic lines that transport aggressive fluids like seawater, chemicals, and high-pressure oils. Thanks to their impressive strength-to-weight ratio and long-lasting reliability, these fittings are a go-to choice for demanding environments.
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