Copper Type K L M Pipe Size PDF
Products Description
GNEE maintains a large stock of C706 copper-nickel alloy, including bars, plates, pipes, fittings, and flanges. C706, also known as 90/10 copper-nickel alloy, contains 10% nickel and conforms to ASTM B466 and ASME SB466 standards. C706 is renowned for its moderate strength, good weldability, and formability. Furthermore, due to the addition of appropriate amounts of iron and manganese, the 90/10 alloy exhibits excellent corrosion resistance, stress cracking resistance, and resistance to erosion and impact from high-speed turbulent currents (including bubbles and silt).
Chemical Composition
| Cu | Fe | Pb | Mn | Ni | Zn | |
| Min/Max | Rem | 1.0 - 1.8 | 0.05 | 1 | 9.0 - 11.0 | 1 |
| Nominals | 88.6000 | 1.4000 | - | - | 10.0000 | - |
Mechanical Properties
| Temper | Sect. Size | Cold Work | Type Min | Temp | Tensile Strength | YS 0.05% UL |
YS 0.02% Offset |
YS 0.005% Offset |
Elong. | RH B |
RH C |
RH F |
RH 30T |
VH 500 |
BH 500 |
BH 3000 |
Shear Strgth |
Fatigue Strgth |
Izod Impact Strgth |
| - | in. | % | - | F | ksi | ksi | ksi | ksi | % | B | C | F | 30T | 500 | 500 | 3000 | ksi | ksi | ft-lb |
| - | mm. | - | - | C | MPa | MPa | MPa | MPa | - | - | - | - | - | - | - | - | MPa | MPa | J |
| Tube | |||||||||||||||||||
| OS025 | 0 | 68 | 80 | 16 | - | - | - | - | - | - | - | - | - | - | - | - | |||
| OS025 | 0 | 0 | TYP | 20 | 552 | 110 | - | - | 42 | 15 | - | 65 | 26 | - | - | - | - | - | 0 |
| H55 | 0 | 68 | 60 | 57 | - | - | - | - | - | - | - | - | - | - | - | - | |||
| H55 | 0 | 0 | TYP | 20 | 414 | 393 | - | - | 10 | 72 | - | 100 | 70 | - | - | - | - | - | 0 |




Processing Properties
C70600 is easy to work with, both hot and cold, and can be formed through various methods such as forging, rolling, and drawing. It has good weldability and can be joined using gas welding, resistance welding, and laser welding. Furthermore, due to its suitable hardness and machinability, it can be processed by cutting and milling. For surface treatment, mechanical polishing, electroplating, and sandblasting can be performed to improve its appearance and corrosion resistance.
Application Areas
C70600 is widely used in marine engineering, chemical equipment, seawater cooling systems, shipbuilding, plumbing and sanitary ware products, and architectural decoration. Especially in marine environments, such as offshore platform structures and seawater desalination plants, C70600 is an ideal material due to its excellent corrosion resistance and mechanical properties.
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




