Def Stan 02-833 Specifications & Applications

Stoke-on-Trent, United Kingdom
[email protected]
UK +44 (0) 1782 816888 | US +1 17577921977

Def Stan 02-833 Overview

Def Stan 02-833 is a British Defence Standard nickel-aluminium bronze which has the unique combination of properties of high strength, good fatigue and good corrosion (about ten-times that of 316 stainless steel) resistance in sea water. It also has immunity to biofouling and extremely good wear resistance and anti-galling properties.

Def Stan 02-833 is a high tensile wrought alloy, which has a proven track record of being used throughout the British submarine build program since the 1980s and is now being used for wider applications within the commercial marine and petrochemical industries.

Superseding Def Stan 02-747 for all components, for the same chemistry Def Stan 02-833 offers significantly higher mechanical strength and improved integrity. Furthermore, the finer grain structure of Def Stan 02-833 allows for ultrasonic inspection, which is a fraction of the cost of x-ray radiographic examination (required for Def Stan 02-747 castings).

This is a wrought alloy that benefits from extreme consistency in properties, fine equiaxed grain structure and low cost volumetric inspection. Furthermore, representative test pieces are taken giving accurate analysis of properties from material to component.

Discuss your Def Stan 02-833 requirements

Def Stan 02-833 Equivalent Specifications

Related Specifications

C61900
BS2874 CA105

British Defence Standards

Def Stan 02-833 Part 2, Grade 1-2 Class 1-4
Def Stan 02-833 Part 1
Def Stan 02-879 Part 2
Def Stan 02-886
NES 833
NES 729 Part1-5
DG SHIPS 1043
BS 2874
BS 2872
GB 1176 : 1987
ZCuAl9Fe4Ni4Mn2

European

EN 12163 CW307G
EN 12165 CW307G
EN 12420 CW307G
DIN 2.0970
DIN 2.0971
NFA51-116 / NF A 53-707 : 1987

American Defence Standards

QQ C 465B /
MIL B 24059 Rev 3

Key features of Def Stan 02-833

Def Stan 02-833 has a good resistance to seawater corrosion and is immune to biofouling, making it perfect for marine and naval applications.

It is immune to hydrogen embrittlement.

It has anti-galling characteristics.

The finer grain structure of Def Stan 02-833 allows for ultrasonic inspection.

Applications of Def Stan 02-833

Typical applications for the Def Stan 02-833 nickel aluminium bronze material usually fall within the Marine Defence and Naval sectors.

Components typically made from Def Stan 02-833 include:

Critical valve systems for advanced naval vessels
Sea water pumping and general sea water handling components
Cooling systems
Heat exchangers
Fuel systems
Observation kits
Vessel propulsion components
A wide range of safety-critical high integrity applications, manipulation equipment and sound propagation navigation equipment

Def Stan 02-833 can also be specially engineered into:

Non-sparking safety tooling
Valve stems and seats
Wear plates
Welding clamps
Valve spindles and components
Fasteners and bearing bushes
Condenser end plates for steam generation equipment and desalination plants Hydraulic rams, ballast tanks and associated components
Marine chains, connectors and geographical location centres

Discuss your Def Stan 02-833 requirements

Def Stan 02-833 Composition

Element	Cu	Al	Ni*	Fe
%	Bal	8.5-10.0	4.0-5.5	4.0-5.5

Typical Mechanical Properties

Form	Size Range Metric	Yield 0.2% MPa	UTS MPa	Elong %	Izod (Joules)	Hardness HB
Rod	25-100mm	295-400	635-700	20-30	27-40	165-200
Rod	>100mm	245-360	620-700	20-30	23-40	165-200
Forgings	All sizes	245-365	245-360	20-30	23-38	165-190

Procurement Recommendations

Buy components direct from the material manufacturer – where possible, due to the specialist nature of this alloy, it is normally lower risk and much more cost effective to buy finished components from the mill.
Project management is available for full ranges of kit and components. Harnessing the Copper Alloys quality management system guarantees delivery on-time and in full.
Tailored and customised properties (physical and mechanical) beyond those of the material specification to enhance performance.

Manufacturing Ranges

With very little limitation on size, Def Stan 02-833 is available as standard in rod, bar, blocks, rings, tubes and discs up to a piece weight of 4,500kg/9,900lbs.

Copper Alloys is also regularly making customised shaped forgings and can increase piece weight up to 20,000kg/44,000lbs.

Copper Alloys Ltd also offers finished machined components in all alloys, complete project management and tailored mechanical properties beyond those of the specification to meet special requirements.

All information is supplied for guidance only and gives no guarantee for end applications.

Typical Physical Properties

(Courtesy Def Stan 02-879)

	Metric
Density	7590 kg/m³
Specific Gravity	7.59
Specific Heat	420J/kg K
Electrical Conductivity	0.041mega Siemens/cm @20 ºC
Thermal Conductivity	42 W/mK
Thermal Linear Expansion	17.1 µstain/K Range (20-200 ºC)
Electrical Resistivity	0.13 µ Ωm.m
Relative Magnetic Permeability	1.5µ
Machining Index	40 (Based on free machining brass 100%)
Modulus of Rigidity	49 GPa
Modulus of Elasticity	125 GPa
Shear Strength	415MPa
Poisson’s Ratio	0.32
Fatigue Limit in air (rotating)	1×107 cycles +/- MPa (278-293)
Melting Range	1060-1075 ºC
Hot Working	700-925 ºC
Cold Working	Poor
Cryogenic	Retains properties down to – 302 ºF (-190 ºC)
Elevated Temperatures	Retains properties to 662 ºF (350 ºC)

Frequently Asked Questions

What are the typical applications of Def Stan 02-833 alloy?

Def Stan 02-833 is usually used to make components for the Marine Defence and Naval sectors. This includes parts such as critical valve systems, heat exchangers, fuel systems and vessel propulsion components.

Can Def Stan 02-833 be welded or machined?

Yes, it is recommended to use TIG, GTAW, MIG, GMAW, MMA, friction or laser welding to join Def Stan 02-833 parts. Def Stan 02-833 can be machined into final components. This is something we specialise in at Copper Alloys.

Where can I buy Def Stan 02-833 metal alloy?

Def Stan 02-833 is available as standard in rod, bar, blocks, rings, tubes and discs up to a piece weight of 4,500kg/9,900lbs to buy from Copper Alloys. We also regularly make customised shaped forgings and can increase piece weight up to 20,000kg/44,000lbs.

Copper Alloys can modify existing alloys for improved performance. Many customers have benefited from this in the past.

To discuss your requirements, call a member of Copper Alloys’ technical team on +44 (0) 1782-816888, or email us.

Contact the technical team

This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with temperature, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose.

Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the Company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions, a copy of which is available on request.