QQ N 286 Rev. G is a US Federal Material Specification based upon UNS N05500. QQ-N-286 is a precipitation hardenable, high-strength, corrosion-resistant nickel alloy widely used in naval applications.
This nickel-copper alloy has exceptional corrosion resistance, including against saltwater corrosion and high temperature steam.
QQ-N-286 is also resistant to hydrochloric and hydrofluoric acid corrosion in non-aerated conditions.
This remarkable resistance to corrosion coupled with its high strength capacity and good weldability makes our nickel-copper alloy high performing and reliable in even the harshest of environments.
Due to the impressive corrosion resistance, QQ N 286 can be used in a variety of environments and for several applications, such as:
Discover more about QQ-N-286
QQ N 286 is a high strength nickel-copper alloy, so performs well when it comes to mechanical properties.
Typical QQ N 286 material properties are:
| Tensile Strength (N/mm²) |
1050 |
| Proof/Yield Strength (N/mm²) |
676 |
| Elongation (%) |
25 |
| Impact Izod J20°C |
70 |
The nominal composition of QQ N 286 is NiCu30Al. At Copper Alloys, we add quantities of iron, manganese and titanium to our QQ N 286 which helps to produce a range of properties from increased strength and corrosion resistance.
This high-performing nickel-copper alloy lends itself to several applications due to its physical properties.
The QQ N 286 spec is:
| Density g/cm³ |
8.44 |
| Melting temperature range |
1315 – 1350 °C |
| Electrical Resistivity μΩ.m15°C |
61.5 |
| Relative Magnetic Permeability |
<1.01 |
| Thermal Conductivity W/mK |
17.2 |
QQ N 286 has inherent material properties that make it an exceptional, high-performing nickel-copper alloy. Some of the benefits of QQ N 286 include:
- High corrosion resistance to saltwater, acid and steam
- Good weldability
- High strength capacity
The equivalent specifications of QQ N 286 are:
ASTM B 865 N05500
DIN 2.4375 NiCu30Al
DIN 17743
DIN 17752
DIN 17754
AMS 4676
QQN-N-286
BS 3074 NA18
BS 3072 NA18
BS 3076 NA18
AFNOR NU30AT
For applications that require a nickel-copper alloy that is stronger than QQ N 286, but still require corrosion resistance, then we have a couple of options available:
T-1000
Our T-1000 alloy thrives in marine defence applications that demand extreme strength and corrosion resistance. The material’s ability to resist biofouling is another quality which makes T-1000 perfect for marine components.
Learn more about T1000
CNC-1®
CNC-1® was developed by the British Ministry of Defence to replace nickel aluminium bronze and improve the lifespan of its fleet of submarines. It is specifically designed for high shock resistance and resistance to sea water corrosion, making it particularly useful for critical components used in military submarines and warships.
Learn more about CNC-1®
