Copper Type K L M Pipe Size PDF
Products Description
C706 Copper-Nickel tube excels in marine environments, offering superior resistance to seawater corrosion, biofouling, and stress corrosion cracking. Its excellent thermal conductivity and durability make it a popular choice for heat exchangers, condensers, and piping systems used in shipbuilding, offshore platforms, and power plants. Additionally, this tube performs reliably in industrial applications exposed to brine, acids, and other harsh chemicals. Combining long-term durability, ease of fabrication, and low maintenance requirements, C706 Copper-Nickel tube remains a trusted material for critical systems in both marine and industrial sectors.
Chemical Composition ASTM B466 90/10 Pipes and Tubes
| Copper Alloy UNS Nos |
Copper incl Silver |
Nickel incl Cobalt |
Lead max |
Iron | Zinc,max | Manganese |
| C70600 | remainder | 9.0 to 11.0 | 0.05 | 1.0 to 1.8 | 1 | 1.0 max |
Mechanical Properties ASTM B466 90/10 Pipes and Tubes
| Standard Temper |
Former Temper |
Copper Alloy UNS Nos. |
Tensile Strength, min,ksi(MPa) |
Yield Strength,A min, ksi(MPa) |
RockwellB Hardness 30T |
| 060 | Soft annealC | C70600 | 38(260) | 13(90) | 45 max |




Copper Nickel 90/10 Pipe Dimension
| SPS | Outside Diameter,in.[mm] | Specials in.[mm] |
Specials in.[mm] |
Specials in.[mm] |
Specials in.[mm] |
Specials in.[mm] |
Regular in.[mm] |
Extra Strong in.[mm] |
| 1/8 | 0.405[10.3] | 0.058 [1.47] | – | – | – | – | 0.062[1.57] | 0.100 [254] |
| 1/4 | 0.540[13.7 | 0.065[1.65] | 0.072[1.83] | – | – | – | 0.082 [2.08] | 0.123 [3.12] |
| 3/8 | 0.675[17.1] | 0.065[1.65] | 0.072[1.83] | 0.095[2.41] | 0.148[3.76] | – | 0.090 [2.29] | 0.127 [3.23] |
| 1/2 | 0.840 [21.3] | 0.065 [1.65] | 0.072[1.83] | 0.120 [3.03] | 0.203 [5.16] | – | 0.107 [2.72] | 0.149[3.78] |
| 3/4 | 1.050 [26.7] | 0.065 [1.65] | 0.083[2.11] | 0.148 [3.76] | 0.238 [6.05] | – | 0.114 [2.90] | 0.157 [3.99] |
| 1 | 1.315 [33.4] | 0.065 [1.65] | 0.095[241] | 0.203[5.16] | 0.340[8.64] | – | 0.126 [3.20] | 0.182 [4.62] |
| 1 1/4 | 1.650 [42.4] | 0.072[1.83] | 0.095[241] | 0.120 [3.03] | 0.220 [5.59] | 0.380 [9.65] | 0.146 [3.71] | 0.194[4.93] |
| 1 1/2 | 1.900[48.3] | 0.072[1.83] | 0.109 [277] | 0.134 [3.40] | 0.250 [6.35] | 0.425[10.8] | 0.150 [3.81] | 0.203 [5.16] |
| 2 | 2.375 [60.3] | 0.083|2.11] | 0.120 [3.03] | 0.165 [4.19] | 0.340[8.64] | 0.520[13.2] | 0.156 [3.96] | 0.221 [5.61] |
| 2 1/2 | 2.875 [73.0] | 0.083 |2.11] | 0.134 [3.40] | 0203 [5.16] | 0.380 [9.65] | – | 0.187 [4.75] | 0.280 [7.11] |
| 3 | 3.500[88.9] | 0.095[2.41] | 0.165[4.19] | 0.250[6.35] | 0458 [11.6] | – | 0.219[5.56] | 0.304[7.72] |
| 3 1/2 | 4.000 [102] | 0.095[2.41] | 0.180[4.57] | 0284[7.21] | – | – | 0.250 [6.35] | 0.321 [8.15] |
| 4 | 4.500[114] | 0.109[2.77] | 0203 [5.16] | 0.340 [8.64] | – | – | 0.250 [6.35] | 0.341 [8.66] |
| 5 | 5.552[141] | 0.125[3.18] | 0.220[5.59] | 0.425 [10.8] | – | – | 0.250 [6.35] | 0.375 [9.52] |
| 6 | 6.625[168] | 0.134[3.40] | 0.259[6.58] | 0.457 [11.6] | – | – | 0.250 [6.35] | 0.437 [11.1] |
Copper Nickel C70600 Packaging & Shipping Policy
Copper Nickel C70600 packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.
Delivery: Within 7-15 days or asap if we have enough stock
Types of Packaging:
Bundles (hexagonal)
Wooden Boxes
Crates (steel/wooden)
Packaging for Copper Nickel C70600 as per customer's requirements
Special Features:
Each bundle covered with plastic for protection against extreme weather.
End of Copper Nickel C70600 protected by plastic caps.
Bundles strapped with plastic strips.
Each radius of U-Bend tube separated by a separator.
Packaging list (laminated) placed with box/crate.
Specific Marking and Packaging:
Each item or part has a unique identifier and is specifically packaged to meet the customer's needs... We adapt to your request.
About us
GNEE is a leading international trader and supplier specializing in a comprehensive range of high-quality copper and copper alloy products. We serve a global clientele across various industries, including HVAC/R, automotive, electronics, construction, and industrial manufacturing.
Our Extensive Product Portfolio
We boast a vast inventory and robust supply chain for virtually all forms of copper products. Our expertise covers:
Copper Seamless Tube / Capillary Copper Tube
Copper Welded Tube / Copper Air Conditioning Tube
Copper Refrigeration Tube / Copper Water Tube
Deoxidized Copper Tube / Copper Coil Tube
Copper Sheets & Plates&Strips:
Copper Strip / Copper Thin Strip
Copper Heavy Duty Strip / Precision Copper Strip
Copper Foil Sheet / Copper Thin Sheet
Copper Thick Plate / Copper Chequered Plate
Copper Shim Stock / Copper Busbar
Copper Round Bar / Copper Square Bar
Copper Hexagon Bar / Copper Flat Bar
Copper Alloy Rod / C11000 Electrolytic Tough Pitch (ETP) Copper Rod
Copper Wire / Bare Copper Wire
Copper Alloy Wire / Oxygen-Free Copper Wire
Copper Profiles / Copper Fittings
Material Grades & International Standards
We provide materials that conform to major international standards to ensure performance, reliability, and global acceptance. Commonly supplied grades and standards include:
Common Grades:
Pure Copper: C10100 (Oxygen-Free Electronic Copper), C10200 (Oxygen-Free Copper), C11000 (Electrolytic Tough Pitch - ETP Copper)
Copper Alloys:
Brass: C26000 (Cartridge Brass), C27200 (Brass), C36000 (Free-Cutting Brass), C38500 (Architectural Bronze)
Phosphor Bronze: C51000
Aluminum Bronze: C60800
Copper-Nickel: C70600 (CuNi 90/10)
Admiralty Brass: C44300
ASTM Standards:
B68 / B68M: Seamless Copper Tube
B75 / B75M: Seamless Copper Pipe
B111 / B111M: Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
B152 / B152M: Copper Sheet, Strip, Plate, and Rolled Bar
B187 / B187M: Copper Bus Bar, Rod, and Shapes
B301: Free-Cutting Brass Rod




