
Kencotube is renowned in manufacturing & dealing for Copper Nickel Fasteners, where due to a deficiency in deoxidants in the alloys, porosity is a problem and they cannot be welded autogenously. Copper Nickel Alloy Fasteners is used for splash zone corrosion protection on oil/gas platform legs and riser pipes either as welded sheet or as a composite with neoprene. A highly deoxidised filler metal needs to be used in these Cu-Ni Fasteners although there is an exception to this rule, where thin sheet contains substantial amounts of titanium. With adequate strength to withstand pressures in most marine hydraulic and instrumentation systems, Cupronickel Fasteners provides good service, combined with ease of manipulation at installation.
A very strong deoxidant in Cu-Ni Alloy Fasteners is now available and this is capable of being welded autogenously by TIG, plasma-TIG and the power beam processes without significant porosity problems. Cupronickel Alloy Fasteners makes allowance for the fact that local speeds may be higher at changes of direction, points of divergence, etc. If water velocity is excessive, Copper Nickel Nuts can cause vortices leading to impingement attack which can cause premature failure. The other main alloying elements in Cu-Ni Bolts are manganese, around 1%, that is used as a deoxidant and desulphuriser, and up to 2% iron which is added to improve erosion resistance. We also offer these copper nickel fasteners at reasonable price to our clients in different sizes and shapes, along with customized options.
Specifications | ASTM / ASME SB 151, SB 152 |
Standards | DIN, ASTM, BS and all International Standards |
Size | M4 To M100 |
Length | 3 mm to 200 mm |
Grade | UNS NO. C92200 & UNS NO. C83600, UNS NO. C70600 ( CU -NI- 90/10), C71500 ( CU -NI- 70/30), ASTM / ASME SB 152 UNS NO C10100, C10200, C10300, C10800, C12000, C12200. |
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) |
Type of Copper Nickel 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 Copper Nickel 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 Copper Nickel 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 Copper Nickel 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 Copper Nickel 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 |
STANDARD | WERKSTOFF NR. | UNS |
---|---|---|
Copper Nickel 90/10 | 2.0872 | C70600 |
Copper Nickel 70/30 | 2.0882 | C71500 |
Grade | Cu | Pb | Mn | Fe | Zn | Ni |
---|---|---|---|---|---|---|
Cupro Nickel 90/10 | 88.6 min | .05 max | 1.0 max | 1.8 max | 1 max | 9-11 max |
Cupro Nickel 70/30 | 65.0 min | .05 max | 1 max | 0.4-1.0 | 1 max | 29-33 |
Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
---|---|---|---|---|---|
Cu-Ni 90/10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
Cu-Ni 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
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