Copper Nickel
C71500 Copper Nickel
Specs: MIL-C-15726 MIL-T-15005 ASTM-B-151 MIL-C-24679
UNS# C71500
C71500 Copper Nickel, also known as 70/30 Copper Nickel, offers excellent corrosion resistance, especially in marine saltwater environments. The main wrought Copper Nickel alloys chosen for sea water service contain 10% or 30% Nickel. They also have important additions of Iron and Manganese which are necessary to maintain good corrosion resistance.
Some common applications for Copper Nickel include valves, pump components, fittings, flanges, and various other marine hardware components.
Details
Copper Nickel C71500 (CuNi30MnFe1) is a copper nickel alloy with limited additions of manganese and iron to increase the strength. Copper Nickel 70/30 is also insensitive to stress corrosion.
Although this alloy was already known by the Chinese in the 9th Century, it did not become popular until the 1920’s when it was developed for naval applications in seawater condenser systems.
The addition of iron helps grain refining and increases the erosion resistance with flowing seawater.
It retains its strength well at moderately elevated temperatures, has good cold and hot working properties, and is easily weldable.
The alloy is now used in a wide spectrum of applications, ranging from piping for seawater, cladding for offshore platforms and underwater cages for fish farming.
Being high in copper Copper Nickel 70/30 has anti-bio-fouling properties in seawater, and more recently, has been proven to have anti-microbial applications in hospital environments to combat the spread of viral bacteria.
Available shapes – round, rectangular, and sleeve
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Applications
Chemical and Marine
- Tube and Tube Plates For Heavy Duty Water Condensers
- Heat Exchanges
- Desalination Plants
- Feed Water Heaters and Evaporators in Power Stations
- Sugar Refining Plants
- Condenser Systems
- Fish Cages
- Cooling-Water Circuits and Sanitary Services on-board Ship
- Fire Sprinkler Systems for Ships
- Hydraulic And Pneumatic Piping
- Under Water Sheathing
- Ship Building
- Oil Well Pump Liners
- Salt Water Pumps and Piping for Submarines and Naval Surface Ships
- Bourdon Tubes
- Hydraulic Fluid Pipes Operating Under Corrosive Environments
- Wave and Tidal Energy Generation Equipment
Mechanical
- Fasteners
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Specifications
Specifications Copper Nickel C71500
| International Standards |
Material Designation |
Tube & Pipe Welded & Seamless |
Sheet & Plate | Strip | Rod, Bar & Profile |
Wire | Forgings |
|---|---|---|---|---|---|---|---|
| USA ASTM |
UNS C71500 C71520 |
ASTM B 111 ASTM B 359 ASTM B 395 ASTM B 466 ASTM B 467 ASTM B 543 ASTM B 552 ASTM B 608 ASTM B 956 |
ASTM B 122 ASTM B 171 |
ASTM B 122 | ASTM B 151 ASTM B 124 ASTM B 122 |
ASTM B 283 | |
| ASME | ASME SB 151 | ||||||
| AMS | |||||||
| SAE | SAE J461 SAE J463 |
||||||
| Military | MIL-C-15726 MIL-T-15005 MIL-C-24679 |
||||||
| Europe EN 12451 |
CuNi30Mn1Fe CW 354H |
EN 1652 EN 1653 |
EN 1652 | EN 12163 EN 12164 |
EN 12165 EN 12420 |
||
| Germany DIN 17664 |
CuNi30Mn1Fe 2.0882 |
DIN 17671-1 DIN 17679 DIN 1785 |
DIN 17670-1 DIN 17675-1 |
DIN 17670-1 | DIN 17672-1 | ||
| UK British Standard Military |
CN 107 | BS 2871-2 BS 2871-3 |
BS 2870 BS 2875 |
BS 2870 | BS 2872 BS 2874 Def Stan 02 780 |
Def Stan 02 780 | |
| France NF A 51-115 NF A 51-112 |
CuNi30FeMn CuNi30Mn1Fe |
NF A 51-102 | NF A 51-115 NFA 51-112 |
NFA 51-112 | GAM MM11 | ||
| Japan JIS H 3320 |
C7150 | JIS H 3300 JIS H 3320 |
JIS H 3100 | ||||
| Russia GOST 00492 |
MNZMc30-1-1 | ||||||
| China | BFe30-1-1 | ||||||
| Australia AS 2738-2 |
715 | AS 1569 AS 1572 |
AS/NZS 1573 | ||||
| International ISO 429 |
CuNi30Mn1Fe | ISO 1635 ISO 1635-2 |
ISO 1534-2 | ISO 1534-1 | ISO 1637 |
Registered with the USA EPA as an Antimicrobial Alloy.
Mechanical Properties
Mechanical Properties of Copper Nickel C71500
| Product Form | Condition | Size Imperial metric |
UTS Ksi N/mm² |
0.5% Yield Ksi N/mm² |
Elong % |
|---|---|---|---|---|---|
| Rod & Bar ASTM B 151 |
060 soft anneal | <=0.5” (<=12mm) >0.5-1” (>12-25.4mm) >1” (>25.4mm) |
52-60 358-414 48-58 331-400 45-52 310-358 |
18-26 124-179 18-24 124-165 18-22 124-152 |
30-45 30-42 30-40 |
Physical Properties
Physical Properties Copper Nickel C71500
| Physical Properties | Imperial Units | Physical Metric Units |
|---|---|---|
| Density | 0.323 lb/in³ | 8.94g/cm³ |
| Melting Range | 2260-2140ºF | 1170-1240ºc |
| Hot Working Range | 1695-1875 ºF | 925- 1025 ºc |
| Mean Liner Expansion 20-300ºc |
0.0162 ºc x10-³ | |
| Mean Liner Expansion 68-572 ºF |
0.009 ºF x10-³ | |
| Specific Heat | 0.090Btu/lb/ ºF @68ºF | 377J/kg ºK @20 ºc |
| Thermal Conductivity | 17Btu /ft²/fth ºF @68ºF | 29W/m. ºK |
| Electrical Conductivity | 5% IACS @68ºF | 0.029MS/cm@20 ºc |
| Electrical Resistivity | 14.72µΩin | 37.4 μΩcm |
| Modulus of Elasticity 10³ | ||
| Tension | 22ksi | 152N/mm² |
| Rigidity | 8.3ksi | 57. N/mm² |
While the data is believed to be accurate, Wieland Diversified makes no representation or warranty of any kind (expressed or implied) and assumes no responsibility with respect to the accuracy and values shown above; this information should only be used as a guide.
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