Copper Type K L M Pipe Size PDF
Products Description
GNEE maintains a large inventory of C70600 copper-nickel alloy, including bars, plates, pipes, fittings, and flanges. C70600 copper-nickel alloy pipes are known for their moderate strength, good weldability, and formability. Due to the addition of appropriate amounts of iron and manganese, this 90/10 alloy exhibits excellent corrosion resistance and stress cracking resistance, and effectively resists erosion and impact even in high-speed turbulent flows containing bubbles and sludge. Please call or request a quote; we are happy to serve you.
mechanical properties of UNS C70600 tubes as a function of heat treatment
| Temper | Tensile Str. | Yield Str. | Elong. | Rockwell | |||
| B | C | F | 30T | ||||
| H55 | 414MPa (60ksi) | 393MPa (57ksi) | 10% | 72 | – | 100 | 70 |
| OS025 | 303MPa (44ksi) | 110MPa (16ksi) | 42% | 15 | – | 65 | 26 |
chemical composition of UNS C70600 copper alloy
| Elements | Content (%) |
| Nickel, Ni | 9.0-11.0 |
| Iron, Fe | 1.0-1.8 |
| Zinc, Zn | 1.0 |
| Manganese, Mn | 1.0 |
| Lead, Pb | 0.05 |
| Copper, Cu | Remainder |




Physical Properties
| Property |
Metric Units |
Imperial Units |
|
Melting Point (Liquidus) |
11,500°C |
21,000°F |
|
Melting Point (Solidus) |
11,000°C |
20,100°F |
|
Density |
8.94 gm/cm³ @ 20°C |
0.323 lb/in³ @ 68°F |
|
Specific Gravity |
8.94 |
8.94 |
|
Coefficient of Thermal Expansion |
17.1 x 10 -6 / °C (20-300°C) |
9.5 x 10 -5 / °F (68-392°F) |
|
Themal Conductivity |
40 W/m. °K @ 20°C |
23 BTU/ft³/ft/hr/°F @ 68°F |
|
Thermal Capacity (Specific Heat) |
380 J/kg. °K @ 20°C |
0.09 BTU/lb/°F @ 68°F |
|
Electrical Conductivity (Annealed) |
5.26 microhm?¹.cm?¹ @ 20°C |
9.1% IACS |
|
Electrical Resistivity (Annealed) |
0.190 microhm.cm @ 20°C |
130 ohms (circ mil/ft) @ 68°F |
|
Modulus of Elasticity (tension) |
140 GPa @ 20°C |
20 x 10 6 psi @ 68°F |
|
Modulus of Rigidity (torsion) |
52 GPa @ 20°C |
7.5 x 10 6 psi @ 68°F |
Standards for C70600 Copper Nickel Tubes
The production and use of C70600 copper nickel tubes typically adhere to the following international standards:
ASTM B111/B111M: This standard specifies seamless copper and copper alloy condenser and heat exchanger tubes.
ASTM B466/B466M: This standard covers seamless copper-nickel pipe and tube.
EN 12451: This European standard pertains to copper and copper alloy tubes for heat exchangers.
EEMUA 144: This is a British Engineering Equipment and Materials Users' Association standard, specifically for copper-nickel tubes in offshore and marine applications.
MIL-T-16420K: This is a United States military standard for copper-nickel tubes.
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




