Copper Type K L M Pipe Size PDF
ASTM B466 C70600 Seamless Pipe
This specification covers the requirements for seamless UNS C70400, C70600, C71000, C71500, C71520, and C72200 copper-nickel pipes and tubes in straight lengths suitable for engineering applications. UNS C70620 and C71520 copper alloys are intended for products that are to be welded subsequently. Each product should be manufactured from cast billets by hot extrusion or piercing and then subjected to cold working and annealing. The standard tempers for the products in this specification are soft annealed (O60), light drawn (H55), hard drawn (H80), and hard drawn and end annealed (HE80). Pipe and tube tensile properties, Rockwell hardness, and test performance should conform to the values specified herein. Performance requirements include those from expansion, flattening, and eddy Current tests.
c70600 chemical composition
| DIN 86019 2.1972 |
EEMUA 144 UNS 7060X |
BS 2871 CN 102 |
ASTM B466 C70600 |
JIS H 3300 C7060 |
MIL-T-16420K C70600 |
|
|---|---|---|---|---|---|---|
| Ni% | 9.0-11.0 | 10.0-11.0 | 10.0-11.0 | 9.0-11.0 | 9.0-11.0 | 9.0-11.0 |
| Fe% | 1.5-1.8 | 1.5-2.0 | 1.0-2.0 | 1.0-1.8 | 1.0-1.8 | 1.0-1.8 |
| Mn% | 0.5-1.0 | 0.5-1.0 | 0.5-1.0 | Max.1.0 | 0.2-1.0 | Max1.0 |
| C% | Max.0.05 | Max.0.05 | Max.0.05 | Max.0.05 | Max.0.05 | |
| Pb% | Max.0.03 | Max.0.01 | Max.0.01 | Max.0.02 | Max.0.05 | Max.0.02 |
| S% | Max.0.015 | Max.0.02 | Max.0.05 | Max.0.02 | Max.0.02 | |
| P% | Max.0.02 | Max.0.02 | Max.0.02 | Max.0.02 | ||
| Zn% | Max.0.15 | Max.0.20 | Max.0.50 | Max.0.50 | Max.0.05 | |
| Zr% | Max.0.03 | |||||
| Others | Max.0.30 | Max.0.30 | Max.0.30 | |||
| Cu% | Balance | Balance | Balance | Balance | Cu+Ni +Fe+Mn Min.99.5 |
Min.86.5 |
Uses & Applications for C70600 Copper Nickel Tube & Pipe:
C70600 90/10 alloy is widely used in marine applications due to its excellent resistance to seawater corrosion.
C70600 90/10 is used primarily in engine cooling, wastewater, and fire suppression applications on commercial and military vessels.
The alloy is also found uses in offshore oil and gas production, power generation, and desalination plants.




Equivalent materials to UNS C70600 copper nickel alloys are:
| ASME SB111 | ASTM B111 | ASTM B466 | ASME SB171 |
| ASME SB359 | ASTM B122 | ASTM B469 | MIL T-22214 |
| ASME SB395 | ASTM B151 | ASTM B543 | SAE J461 |
| ASME SB466 | ASTM B171 | ASTM B608 | SAE J463 |
| ASME SB467 | ASTM B359 | DIN 2.0872 | MIL T-16420 |
| ASME SB543 | ASTM B395 | MIL C-15726 | MIL T-15005 |
FAQ
Q: Is c70600 susceptible to pitting corrosion?
A: It has good resistance to pitting corrosion in clean seawater. Poor water quality (e.g., sulfide pollution) can increase the risk.
Q: What is the typical wall thickness for condenser tubes?
A: Common wall thicknesses range from 0.71 mm (0.028 inches) to 1.24 mm (0.049 inches), depending on the application.
Q: How to prevent galvanic corrosion when connecting c70600 to other metals?
A: Use insulating fittings or select metals close to c70600 in the galvanic series to minimize the potential difference.
Q: What is the maximum allowable stress for c70600 at elevated temperatures?
A: Refer to ASME Boiler and Pressure Vessel Code for specific values, which decrease as temperature increases.
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




