Super Duplex Steel Fasteners
Table of Content
- Specification and Material Grade of Duplex Fasteners
- Chemical Composition Standard Of Duplex Stainless Steel Fasteners
- Duplex Fasteners Mechanical Properties
- Physical Properties of Duplex Fasteners
- 2205 Duplex Fasteners Equivalent Grades
- General Characteristics of Duplex Steel Fasteners
- Types Of Duplex Steel Fasteners
- FAQS
Kalpataru Piping Solutions is a trusted manufacturer, exporter, and supplier of Super Duplex Fasteners, with years of experience in the industry. Our priority is to provide high-quality, innovative products to customers worldwide. We use premium raw materials and advanced technology to ensure precise manufacturing and an excellent finish. To meet the diverse needs of our customers, we offer custom-made Super Duplex Steel Fasteners in various shapes, sizes, lengths, and thicknesses, all at competitive prices. We are committed to delivering products that meet global standards and exceed customer expectations.
Super Duplex Fasteners are made from a unique blend of ferrite and austenite and are designed for applications that demand high corrosion resistance and strength. Super Duplex Fasteners contain molybdenum, nitrogen, and chromium, which protect against crevice corrosion and chloride pitting. Super Duplex Fasteners are ideal for harsh environments like warm chlorinated water and chloride-rich media, offering strong resistance to erosion, abrasion, and both uniform and localized corrosion at high temperatures. Commonly used in marine and offshore settings, Super Duplex Fasteners feature low thermal expansion, excellent fatigue resistance, high mechanical strength, and good weldability.
Explore our extensive range of Super Duplex Steel Products, including pipes, tubes, flanges, and fittings, all known for their outstanding corrosion resistance and durability in challenging environments.
Super Duplex 2507 bolts, in particular, are designed to handle high pressure and temperature, making them ideal for demanding environments. Super Duplex Fasteners enhanced corrosion resistance makes them suitable for applications involving seawater or corrosive substances. These bolts are well-suited for offshore and oilfield operations, combining strength, durability, and corrosion resistance for reliable performance in tough conditions. Super Duplex 1.4410 fasteners are gaining popularity due to their exceptional strength and superior corrosion resistance. Available in a range of types like screws, bolts, nuts, washers, rivets, and anchors, Super Duplex Fasteners offer high fatigue strength and excellent resistance to hot corrosion
Super Duplex Steel Fasteners Specification
| Specifications | ASTM A193 / ASTM A194 |
| Dimensions | IS, BS, ASTM |
| Size | M10 TO M100 |
| Length | UP TO 5 METERS |
| Grade | UNS NO. S 32750, S 32760, S 32950 |
| Types | Bolts, nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, etc. |
Super Duplex Fasteners Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Super Duplex S32750 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Super Duplex S32760 | 0.05 max | 1.00 max | 1.00 max | 0.030 max | 0.010 max | 24.00 – 26.00 | 3.00 – 4.00 | 6.00 – 8.00 | 0.20 – 0.30 | 57.61 min |
Super Duplex Steel Fasteners Mechanical Properties
| Element | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S32750/S32760 | 7.8 | 0.281 | 1350 | 2460 |
Equivalent Grades of Super Duplex Fasteners
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex 2507 | 1.4410 | S32750 / S32760 |
Types of Super Duplex Steel Fasteners
Related Products
FAQ’s About ASTM A106 Grade B Pipes
What is ASTM A106 Grade B pipe?
ASTM A106/A106M Grade B is a seamless carbon steel pipe specification intended for high-temperature service. The exact project suitability depends on the governing piping code, design conditions and purchase specification.
What is the difference between ASTM A106 Grade B and ASTM A53 Grade B?
ASTM A106 Grade B is a seamless high-temperature-service pipe specification. ASTM A53 Grade B covers welded and seamless pipe for mechanical and pressure applications and ordinary steam, water, gas and air service. Select the specification required by the project and design code.
What sizes does Kalpataru supply?
The current brief lists a Kalpataru supply range of 1/2 to 36 in NPS and Schedule 10 to XXS, subject to size and availability. ASTM A106/A106M itself has a wider standard scope.
What is the maximum temperature of ASTM A106 Grade B pipe?
Do not use one universal maximum temperature from the ASTM material specification. Allowable service depends on the design code, pressure, wall thickness, allowable stress and project conditions.
Is ASTM A106 Grade B seamless or welded?
ASTM A106/A106M is a seamless carbon steel pipe specification. Do not describe ERW, LSAW or other welded pipe as ASTM A106 product construction.
What tests are required for ASTM A106 Grade B pipe?
The specification includes mechanical testing and bend/flattening testing as applicable, together with hydrostatic and/or nondestructive electric testing requirements. The exact inspection package should match the current ASTM edition and purchase order.
What documents can be supplied?
Orders can be supplied with EN 10204 3.1 MTC and, where applicable and agreed, IBR documentation, third-party inspection and project-specific test reports.
How is ASTM A106 Grade B pipe priced?
Price depends on NPS, schedule or wall thickness, length, quantity, origin/mill, testing/certification, coating/end preparation and delivery destination. Send the full requirement for a size-wise quotation.
