Copper Type K L M Pipe Size PDF
What is material grade C70600?
C70600 is a 90/10 copper-nickel alloy (90% copper, 10% nickel) with good corrosion resistance in seawater, commonly used in marine piping and heat exchangers.
What is C71500 material?
C71500 is a 70/30 copper-nickel alloy (70% copper, 30% nickel) with higher strength and superior corrosion resistance, ideal for naval systems and high-pressure marine applications.
Chemical Composition of C70600 vs C71500
|
Element |
C70600 |
C71500 |
|
Copper (Cu) |
88.6 – 90% |
69 – 77% |
|
Nickel (Ni) |
9 – 11% |
29 – 33% |
|
Iron (Fe) |
1.0% |
0.4 – 1.0% |
|
Manganese |
1.0% |
0.5 – 1.0% |
Mechanical & Physical Properties C70600 vs C71500
|
Property |
C70600 |
C71500 |
|
Tensile Strength |
275–414 MPa |
310–517 MPa |
|
Yield Strength |
90–135 MPa |
105–241 MPa |
|
Elongation |
30% |
30% |
|
Corrosion Resistance |
Excellent |
Superior |
|
Resistance to Erosion |
Good |
Better |
|
Weldability |
Excellent |
Good |
|
Cost |
Lower |
Higher |
Marine Performance of C70600 vs C71500
|
Environment |
C70600 |
C71500 |
|
Seawater Corrosion |
Excellent |
Excellent (even better in velocity) |
|
Biofouling Resistance |
Very good |
Very good |
|
High-Velocity Water |
Up to 2.5 m/s |
Up to 4 m/s |
Applications of C70600 vs C71500
|
C70600 (90/10) |
C71500 (70/30) |
|
Seawater pipes & fittings |
High-performance marine piping |
|
Desalination systems |
Power plant condensers |
|
HVAC and heat exchangers |
Oil & gas platform piping |
|
Marine condenser & cooler tubes |
Chemical process industry heat exchangers |
|
Water-cooled brakes, radiators |
High-velocity seawater environments |
How to choose C70600 vs C71500
|
Need |
Best Choice |
|
Cost-effective, general marine use |
C70600 |
|
High strength, high flow seawater |
C71500 |
|
Erosion/corrosion critical system |
C71500 |
|
Easy welding & fabrication |
C70600 |
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
