Many of the copper alloys have been specifically selected or developed to meet certain requirements. For example, 70/30 and 90/10 copper-nickels were developed by the MoD and are now listed in national and international standards. The requirements for the aluminium bronze specified in Def Stan 02-833 define tight limits on the composition, include impact and ultrasonic testing, and specify heat treatment requirements to enhance corrosion resistance. The copper-nickel-managenese specified in Def Stan-02 835 has been developed to meet high strength, ductility and corrosion resistance requirements for applications in submarines.
To view a Def Stan copper alloy specification please visit the Defence Standards Portfolio (registration required).
Def Stan titles for copper alloys explained
| Def Stan No | Scope | Supersedes |
| Def Stan 02-747 Part 3 | Nickel Aluminium Bronze Castings and Ingots, Commercial Alloy Ingots and Sand Castings | NES 747 Part 3, DGS 361 |
| Def Stan 02-747 Part 4 | Nickel Aluminium Bronze Castings and Ingots—Sand castings with Welding Restricted to the Non-wetted Surface (Class I and II Castings Only) | NES 747 Part 4, DGS 348 |
| Def Stan 02-824 | Copper Nickel Chromium Sand Casting and Ingots | NES 824 |
| Def Stan 02-830 | Gunmetal Ingots and Castings | NES 830, DGS 203 |
| Def Stan 02-833 Part 2 | Nickel Aluminium Bronze Forgings, Forging Stock, Rods & Sections | NES 833 Part 2, DGS 1043 |
| Def Stan 02-834 Part 3 | Aluminium Silicon Bronze Ingots and Castings | NES 834 Part 3 |
| Def Stan 02-835 | High Strength Copper Nickel Manganese Alloy Forgings, Forging Stock Rods and Sections | NES 835 |
| Def Stan 02-838 Part 1 | Phosphor Bronze—Continuously Cast | NES 838 |
| Def Stan 02-838 Part 2 | Phosphor Bronze—Wrought Bar Stock | NES 838 |
| Def Stan 02-879 Part 1 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Sheet, Strip and Plate |
Annex B—Copper-nickel (70/30) | Def Stan 07-253 Part 1, NES 780 |
| Def Stan 02-879 Part 1 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Sheet, Strip and Plate |
Annex C—Copper-nickel (90/10) | Def Stan 02-779 Part 1, NES 779 |
| Def Stan 02-879 Part 1 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Sheet, Strip and Plate |
Annex D—Aluminium-silicon bronze | Def Stan 02-834 Part 1, NES 834 |
| Def Stan 02-879 Part 1 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Sheet, Strip and Plate |
Annex E—Aluminium-nickel-silicon brass | Def Stan 02-749 Part 1, NES 749, DGS 333 |
| Def Stan 02-879 Part 1 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Sheet, Strip and Plate |
Annex F—Nickel Aluminium Bronze | Def Stan 02-833 Part 1, NES 833 Part 1 |
| Def Stan 02-879 Part 2 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Forgings, Forging Stock, Rods And Sections |
Annex B—Copper-nickel (70/30) | Def Stan 02-780 Part 2, NES 780 Part 2 |
| Def Stan 02-879 Part 2 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Forgings, Forging Stock, Rods And Sections |
Annex C—Copper-nickel (90/10) | Def Stan 02-779 Part 2, NES 779 Part 2 |
| Def Stan 02-879 Part 2 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Forgings, Forging Stock, Rods And Sections |
Annex D—Aluminium-silicon bronze | Def Stan 02-834 Part 2, NES 834 Part 2 |
| Def Stan 02-879 Part 2 Copper Alloy Materials in HM Submarines and Surface Ships not in Class—Forgings, Forging Stock, Rods And Sections |
Annex E—Aluminium-nickel-silicon brass | Def Stan 02-749 Part 2, NES 749 Part 2 |
| Def Stan 02-886 | Requirements for Wrought Copper-Nickel-Chromium |
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