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Gayatri Tubes is a leading manufacturer, supplier, and wholesaler of Alloy 20 Fasteners . We also deal in all types of household stainless steel. Alloy 20 Fasteners is manufactured with the composition of copper and nickel with various types like seamless, square, fabricated, rectangular, ERW, hot forged, cold-forged, and EFW. These fittings are manufactured in dimensional range of length up to 6 meters, thickness between 0.15mm & 1.50mm, diameter 4.00mm to 22.00mm. This fitting has the standards of ASME SB 151, SB 152 / ASTM with grades UNS NO. C 70600 (Cu – Ni – 90/10), C 71500 (Cu-Ni – 70/30) and sizes between M10 to M100.
Alloy 20 Fasteners are applicable for many purposes like cooling towers, steam exhaust, architecture, aerospace industry, industrial chimneys, sculpture, petroleum refineries, solos, and many more. It can also be applicable in many purposes like valves, fasteners, pump shafts, machine tools, valves, dairy equipment, surgical & medical parts, machine tools, pipe & tubes, building, plumbing, and chemical industries. Also, they can be utilized firewater systems, crankshafts, propellers, watercraft, and other working vessels. They can also be useful as part of brake pipe, pipework, condenser tubes, heat exchanger tubing, cryogenic tube, evaporating tubes and many more. Fasteners are very much helpful in the mega projects, defense and many research & development industries.
2.4660 Fasteners are the perfect higher erosion resistance and they are highly alloyed nickel alloy as compared to other alloys. These fittings are highly conventional in the welding process and useful welds studs. They are impermeably leak proof and can easily be joined by soldering, brazing, adhesive bonding, bolting, riveting, and crimping. Also, these fittings are helpful as heat dissipators, cooling appliances, engineering apparatus, and condensers for ships. Alloy 20 Fasteners is durable, reliable, and easy to operate with dimensionally accurate. These have high electrical conductivity with all the metals, which are vital energy efficient metal. This fitting is more severe in harsh corrosive environments and holds up tougher with all aspects of power generation. Fasteners have very high tensile strength which makes it very useful in marine waters. This fitting is the best hardware for the military aerospace applications and aircrafts hardware. Fasteners are the needed is almost every field of heat conductivity.
| STANDARD | WERKSTOFF NR. | UNS |
| Alloy 20 | 2.4660 | N08020 |
| Specifications | ASTM B473, ASME SB473 |
| Standard | DIN, ASTM, BS and all International Standards |
| Nuts Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Bolt / Screw Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Washers Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Machine Screws Size | M1.6 - M12 |
| Self Tapping Screw Size | No.2 - No. 14 |
| Length | 3 mm to 20 mm |
| Grade | C | Mn | Si | S | Cu | Ni | Cr | Fe | Mo | P |
| Alloy 20 | 0.07 max | 2.00 max | 1.00 max | 0.035 max | 3.00 – 4.00 | 32.00 – 38.00 | 19.00 – 21.00 | 29.85 min* | 2.00 – 3.00 | 0.045 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Alloy 20 | 8.1 g/cm3 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 | Psi - 35,000, MPa - 241 | 30 % |
