
Kencotube is manufacturer & trader for high quality Super Duplex Steel Fasteners, which have a body-centered cubic crystal system and contain between 10.5% and 27% chromium with very little nickel. Due to high contents of chromium, nickel, molybdenum and nitrogen, corrosion resistance of Super Duplex Stainless Steel Fasteners and in some cases mechanical properties are superior to conventional Cr-Ni and Cr-Ni-Mo grades. The resistance to uniform corrosion and localized corrosion in Duplex Steel Fasteners, including chloride and sulphide induced stress corrosion cracking, is very good. Super Duplex Steel Nuts contains chromium (12–14%), molybdenum (0.2–1%), nickel (below 2%), and carbon (around 0.1–1%), where providing it more rigidity but making the product a bit more hard. Super Duplex Steel Bolts is quenched and magnetic, and can be degraded by the presence of chromium, an intermetallic phase which can precipitate upon welding.
Super Duplex Steel Stud Bolts is a contemporary trend for roofing product for airports owing to its low shine reflectance to retain pilots from blinded, as well for its features that permit thermal reflectance so as topreserve the surface of the roof nearly ambient temp. Despite its design and use, Super Duplex Steel Screws can still be susceptible to corrosion, and especially in corrosive environments. Challenging environments in Super Duplex Steel Washers include saline environments, such as coastal areas where regular exposure to sea salt is common and areas where de-icing salts are common during winter.
Specifications | ASTM A193 /SA193, ASTM A194/ SA194, ASTM / ASME SA182, F51, F60 |
Standards | DIN, ASTM, BS and all International Standards |
Size | M10 to M100 |
Length | UPTO 5 METERS |
Grades | ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61. (UNS S32750, UNS S31803) etc. |
Type of Fasteners | Bolts (Eyebolt), Stud, Nuts (Nylock, Lock),Washer (Star, Plain), Allen Caps, Screws (CSK, Pen Head, Philip, Mushroom, Cheese), Rivet (Pop & Hollo), Grab, Clamp (U, J, L) |
STANDARD | WERKSTOFF NR. | UNS |
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Super Duplex 2507 | 1.4410 | S32750 / S32760 / S32950 |
Grade | C | Si | Mn | P | S | Cr | Mo | Ni | N | Other |
---|---|---|---|---|---|---|---|---|---|---|
2507 | 0.030 | 0.80 | 1.20 | 0.035 | 0.020 | 24.0/26.0 | 3.0/5.0 | 6.00/8.00 | 0.24/0.32 | Cu:0.50 |
Type of Super Duplex Steel Nuts |
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Nut, Hex Nut, Auto Lock Nut, 2-H Heavy Hex Nut, Miscellaneous Nut, Nylon Insert Lock Nut, Serrated Flange Nut, Hexagonal Nut, Flange Lock Nut, 2-Way Lock Nut, Coupling Nut, Acorn Nut, Slotted Nut, Heavy Hex Nut, Square Nut, Jam Nut, Wing Nut, Kep Nut, Sleeve Nut, Flex Lock Nut, Slotted Nut, High Nut, Cap Nut, Castle Nut, K Lock Nut, Custom Nut, T- Tee Nut, Dome Nut, Flange Nut, Lock Nut, Weld Nut, Cage Nut, Allenuts, Cage Nut, Spring Nut, High Nut, ACME Nut, Cap Nut Coil Nut, Handle Nut, Hurricane Nut |
Type of Super Duplex Steel Bolts |
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Bolt, Hanger Bolt, Plow Bolt, Shoulder Bolt, Flange Bolt, Draw Bolt, Toggle Bolt, Scraper Blade Bolt, Stove Bolt, Tap Bolt, Stockholder Elevator Bolt, Hex Bolt, Exporter Heavy Hex Bolt, Structural Bolt, Square Bolt, Hex Lag Bolt, Timber Bolt, Square Lag Bolt, Carriage Bolt, Timber Spikes Bolt, Machine Bolt, Round Headed Bolt, Countersunk Bolt, Step Bolt, Manfacturer Headed Anchor Bolt, Custom Bolt, 90 Degree Anchor Bolt, Round U Bolt, Close Eye Bolt, U- Bolt, Supplier Square bend Hook Bolt, Square Bolt, Open Eye Bolt, Round Bend Hook Bolt, Special Hook Bolt, Bent Anchor Bolt, Tension Control Bolt, Connector Bolt, Tower Bolt, Penta Bolt, Step Bolt, Coil Bolt, J-Bolt, Exporter Sidewalk Bolt, Bin Bolt, U-Bolt Plates Track Bolt, Hurricane Bolt |
Type of Super Duplex Steel Screws |
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Screw, Machine Screw, Sheet Metal Screw, Self-Drilling Screw, Thread Cutting Screw, Lag Screw, SEMS Screw, Thread Rolling Screw, Thumb Screw, Drywall Screw, Drive Screw, Eye Screw, Floorboard Screw, Weld Screw, Multiple Material Screw, Wing Screw, Dowel Screw, Accordian Screw, Collated Screw, Concrete Screw, Decking Screw, Metal to Wood Screw, Resistant Screw, Cap Screw, Socket Cap Screw Cabinet Installation Screw, Cement Board Screw |
Type of Super Duplex Steel Washers |
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Washer, Flat Washer, Lock Washer, Finishing Washer, Bonded Sealing Washer, Hillside Washer, Belleville Washer, Conical Washer, Round-Mall Washer, Wave Washer, Fender Washer, Internal Tooth Lock, External Tooth Lock, Plain Washer, Square Washer, Dome Plain Washer, Countersunk Washer, Dock Washer, Ogee Washer, Bevel Washer, Flat Washer - SAE Flat Washer - U Split Lock Washer, Star Washer |
Type of Super Duplex Steel Studs |
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Stud, Threaded Stud, Heavy Stud, Industrial Stud, Fully Threaded Stud, Special Stud, Flush Head Self Clinching Stud, Hurricane Stud, Weld Stud |
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Bhutan, France, Spain, China, Peru, Belarus, Tibet, Kazakhstan, Poland, Turkey, Kenya, Estonia, South Korea, Saudi Arabia, South Africa, Trinidad & Tobago,Tunisia, New Zealand, Argentina, Poland, Zimbabwe, Macau, Thailand, Netherlands, Sri Lanka, Libya, Gabon, Ghana, Finland, Nepal, Bangladesh, Mongolia, Lithuania, Venezuela, Colombia, Portugal, India, Chile, Malaysia, Italy, Iran, Russia, Lebanon, Jordan, Oman, Gambia, Czech Republic, Nigeria, United States, Qatar, Egypt, Nigeria, Puerto Rico, Serbia, Switzerland, Canada, Japan, Sweden, Singapore, Australia, Ireland, Bulgaria, Taiwan, Kuwait, Morocco, Austria, Slovakia, Azerbaijan, Philippines, Yemen, Vietnam, Pakistan, Algeria, United Arab Emirates, Angola, Norway, Hong Kong, Iraq, Belgium, Indonesia, Costa Rica, Afghanistan, Mexico, Greece, Denmark, United Kingdom, Germany, Ecuador, Chile, Brazil, Bahrain, Israel, Hungary, Iran, Ukraine, Croatia, Mexico, Namibia.