Copper Type K L M Pipe Size PDF
Products Description
C70600 copper-nickel tubes, composed of 90% copper and 10% nickel, are engineered for exceptional corrosion and biofouling resistance in harsh marine and industrial environments. This alloy offers superior resistance to impingement attack, stress corrosion cracking, and seawater-induced erosion, making it a trusted choice for high-velocity cooling systems.
Thanks to their durability and anti-fouling properties, CuNi 90/10 tubes are widely used in marine condensers, heat exchangers, and desalination plants, where they outperform other copper alloys under demanding thermal and chemical conditions.
Typical Uses for C706 Copper Nickel "90/10"
Automotive: Power Steering Tube, Brake Lines
Consumer: Screw Lamp Bases
Industrial: Condenser Plates, Condensers, Weld Torch Tips, Heat Exchanger Tubes, Valve Bodies, Evaporator Tubes, Pressure Vessels, Distiller Tubes, Pump Impellers for Oil Refining, Ferrules, Evaporators
Marine: Boat Hulls, Tube Sheet for Salt Water Service, Salt Water Pipe Fittings, Salt Water Piping Systems, Salt Water Piling Wrap, Hot Water Tanks, Salt Water Baffles, Propeller Sleeves, Ship Hulls, Water Hoses
Plumbing: Flanges
Mechanical Properties
| FORM | TEMPER | TENSILE STRENGTH | YS-0.2% OFFSET | YS-0.5% EXT (KSI) | ELONGATION (%) | ROCKWELL (B) | ROCKWELL (F) | ROCKWELL (30T) |
| ROUND BAR ROD | H04 | 50 | 25 | 15 | ||||
| O60 | 38 | 15 | 30 | |||||
| PLATE SHEET STRIP | H01 | 53 | 16 | 35 | 60 | |||
| M20 | 40 | 15 | 30 | 3 | ||||
| H04 | 75 | 73 | 5 | 80 | ||||
| TUBE | O61 | 44 | 16 | 42 | 15 | 65 | 26 | |
| H55 | 45 | 35 | 10 | 72 | 100 | 70 |
Fabrication Properties
| TECHNIQUE | SUITABILTY |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Fair |
| Gas Shielded Arc Welding | Excellent |
| Coated Metal Arc Welding | Good |
| Spot Weld | Good |
| Seam Weld | Good |
| Butt Weld | Excellent |
| Capacity for Being Cold Formed | Good |
| Capacity for Being Hot Formed | Good |
| Machinability Rating | 20 |
Physical Properties
| Melting Point – Liquidus ⁰F | 2100 |
| Melting Point – Solidus ⁰F | 2010 |
| Density lb/cu in. at 68⁰F | 0.323 |
| Specific Gravity | 8.94 |
| Electrical Conductivity % IACS at 68⁰F | 9 |
| Thermal Conductivity Btu/sq ft/ft hr/ ⁰F at 68⁰F | 26 |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-212 ⁰F) | 9.5 |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-392 ⁰F) | 0.09 |
| Coefficient of Thermal Expansion 10-6 per ⁰F (68-572 ⁰F) | 18000 |
| Specific Heat Capacity Btu/lb/⁰F @ 68 ⁰F | 6800 |
| Modulus of Elasticity in Tension ksi | 2100 |
| Modulus of Rigidity ksi | 2010 |
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
