Product Form Size Range Wall Thicknesses
Round Bar DEFSTAN 02-780
25mm - 230mm - Tube DEFSTAN 02-780 6mm - 159mm Various
If you do not see what you are looking for, please contact your
local service centre
with your specific requirements.
NES 780 copper nickel corresponds to the following designations
but may not be a direct equivalent:
Chemical Element % Present
0.60 - 1.00
0.50 - 1.50
29.00 - 32.00
Mechanical Property Value
Elongation A50 mm
General Physical Properties
Physical Property Value
Salt water flanges, salt water piping and pipe fittings, valve bodies, sea water intakes, pipe
fittings, water boxes, propeller sleeves, pump bodies and parts
Evaporator tubes, distiller tubes, refrigerator and condenser components
Flexible metal hose
Excellent corrosion and pitting resistance in marine environments
Good strength and toughness
Resistance to biofouling
Readily weldable and fabricated
NSN Codes for Tube to NES 780 Part 3 Issue 3
Tube to NES780 Part 3 Issue 3 in the following metric sizes/NSN Codes.
Nominal O/D (mm) Wall Thickness (mm) NSN NSN 8.0 0.8 4710-99-125-9846 4710991259846 8.0 1.5 4710-99-529-1224 4710995291224 12.0 0.8 4710-99-925-2924 4710999252924 12.0 1.2 4710-99-304-5008 4710993045008 12.0 2.5 4710-99-529-1225 4710995291225 16.0 1.5 4710-99-660-9250 4710996609250 16.0 3.0 4710-99-529-1226 4710995291226 20.0 1.0 4710-99-087-1293 4710990871293 20.0 3.5 4710-99-529-1227 4710995291227 25.0 1.5 4710-99-891-7002 4710998917002 30.0 1.5 4710-99-316-1450 4710993161450 30.0 4.0 4710-99-529-1219 4710995291219 30.0 5.0 4710-99-529-1228 4710995291228 38.0 1.5 4710-99-225-5411 4710992255411 38.0 5.0 4710-99-529-1220 4710995291220 38.0 6.5 4710-99-529-1229 4710995291229 44.5 1.5 4710-99-701-8126 4710997018126 50.0 6.5 4710-99-529-1221 4710995291221 50.0 8.5 4710-99-529-1230 4710995291230 57.0 1.5 4710-99-616-7499 4710996167499 76.1 2.0 4710-99-439-0975 4710994390975 88.9 2.5 4710-99-852-8652 4710998528652 108.0 2.5 4710-99-577-6131 4710995776131
Marine Copper Alloys
Marine Copper Alloys
This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.
The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed S online) and manufacturers' data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources. Material supplied by the Company may vary significantly from this data but will conform to all relevant and applicable standards. 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, whether expressed or implied. 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. All transactions are subject to the Company's current 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.