Silver Tubes is one of the prominent trader & supplier for high quality of Cu-Ni 90 / 10 Pipes & Tubes, which are commonly specified in heat exchanger or condenser tubes in a wide variety of marine applications. The successful use of Cu-Ni 90 / 10 Tubes in coinage is due to its corrosion resistance, electrical conductivity, durability, malleability, low allergy risk, ease of stamping (metalworking), antimicrobial properties and recyclability. Single-core thermocouple cables in Copper Nickel 90 / 10 Pipes is used a single conductor pair of thermocouple conductors such as iron-constantan, copper constantan or nickel-chromium/nickel-aluminium. These Copper Nickel 90 / 10 Tubes have the heating element of constantan or nickel-chromium alloy within a sheath of copper or stainless steel. Cupronickel 90 / 10 Pipes are used in cryogenic applications.
The combination of good ductility retention and thermal conductivity of Cupronickel 90 / 10 Tubes at very low temperatures is advantageous for low-temperature processing and storage equipment as well as for heat exchangers at cryogenic plants. The bullet jackets were commonly made from Cu-Ni 90 / 10 Seamless Pipes, which was soon replaced with gilding metal to reduce metal fouling in the bore. Currently, Cu-Ni 90 / 10 Seamless Tubes remains the basic material for silver-plated cutlery. Copper Nickel 90 / 10 EFW Pipes is commonly used for mechanical and electrical equipment, medical equipment, zippers, jewellery items, and as material for strings for string instruments. For high-quality cylinder locks and locking systems, cylinder cores are made from wear-resistant Copper Nickel 90 / 10 ERW Tubes.
| Specifications | ASTM / ASME SB 466/467/608 |
| Pipe Size | 1/2" To 6' in OD & NB in various SWG & SCH |
| Tube Size | 1 mm OD upto 254 mm OD in 0.2 TO 20 mm thickness. |
| Type | Seamless / ERW / Welded / EFW / Fabricated / CDW |
| Length | Single Random, Double Random & Required Length. |
| End | Plain End, Beveled End, Treaded |
| STANDARD | UNS | WERKSTOFF NR. |
| Copper Nickel 90/10 | C70600 | 2.0872 |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 90-10 | 88.6 min | 1.00 max | 0.5 max | 9-11 max | 1.8 max | 1.00 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Cupro Nickel 90-10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 90-1000 psi | 30 % |

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