Materials · Copper alloys and aluminium
Non-ferrous fasteners
HAGUE FASTENERS makes non-ferrous fasteners to order in the UK: bolts, studs, nuts and machined parts in aluminium bronze, phosphor and manganese bronze, brass, copper, cupro nickel and aluminium, mainly for marine, defence and oil and gas service.
BS, EN, ASTM
British, European and international specifications
1 to 500
Single prototypes to batches of several hundred
Non-magnetic
Copper alloys for low magnetic signature duty
UK, EU, US
Mill origin of every bar we use
Why non-ferrous
Copper alloys for the sea and for sensitive equipment
Non-ferrous fasteners are chosen where steel would corrode, spark, interfere with a magnetic field or react badly with the metals around it. Copper alloys such as aluminium bronze and cupro nickel have a long record in seawater, and naturally non-magnetic bronzes and brasses are specified for defence and instrument work.
HAGUE FASTENERS makes non-ferrous parts to British, European and international specifications, including naval and defence standards such as NES and DTD, as the old drawing calls for.
Alloys we use
- Aluminium bronze and aluminium silicon bronze
- Phosphor bronze and manganese bronze
- Brass and naval brass
- Copper
- Cupro nickel 70/30 and 90/10
- Hiduron 191 and Marinel
- Aluminium
Grades and equivalents
Non-ferrous alloys and equivalent designations
| Alloy type | BS standard | EN standard | Symbol | ASTM/UNS (nearest equivalent) | Other compatible alloys |
|---|---|---|---|---|---|
| Aluminium Bronze | CA104 | CW307G | CuAl10Ni | C63200 / C63000 | NES833, BSB23(DTD197A) |
| Aluminium Bronze | CA105 | – | CuAl10Fe3Ni7Mn2 | C63000 | – |
| Aluminium Bronze | AB1-C | CC331G | CuAl10Fe2-C | C95400 | SAE68 |
| Aluminium Bronze | AB2-C | CC333G | CuAl10Fe5Ni5-C | C95500 | SAE68B |
| Aluminium Bronze | BSB23 | – | – | – | NES833, CA104 (DTD197A) |
| Aluminium Bronze | DTD197A | – | – | – | BSB23, CA104, NES833 |
| Aluminium Bronze | NES833 | – | – | – | CA104, BSB23 (DTD197A) |
| Copper Tin | CT1 | CC480K | CuSn10 | – | – |
| Gunmetal | G1 | – | CuSn10Zn2 | C90500 | SAE62 |
| High tensile Brass | HTB1 | CC765S | CuZn35Mn2Al1Fe1-C | C86400 | – |
| High tensile Brass | HTB2 | – | CuZn36Al4FeMn | – | – |
| Leaded Bronze | LB1-C | CC496K | CuSn7Pb15-C | C93800 | SAE67 |
| Leaded Bronze | LB2-C | CC495K | CuSn10Pb10-C | C93700 | SAE64 / SAE797 / SAE792 |
| Leaded Bronze | LB4-C | CC494K | CuSn5Pb9-C | C93500 | SAE66 |
| Leaded Bronze | LB5-C | CC497K | CuSn5Pb20-C | C94100 | SAE94, SAE794 & SAE799 |
| Leaded Bronze | – | – | CuSn7ZnPb | C93200 | SAE660 |
| Leaded Gunmetal | LG2-C | CC491K | CuSn5Zn5Pb5-C | C83600 | SAE40 |
| Leaded Gunmetal | LG4-C | CC492K | CuSn7Zn2Pb3-C | C93400 | – |
| Leaded Phosphor Bronze | LPB1 | – | CuSn8Pb4Zn1 | C93100 | – |
| Leaded Phosphor Bronze | PB4-C | CC480K | CuSn10-C | C92700 | – |
| Nickel Gunmetal | G3 | – | CuSn7Ni5Zn3 | B292-56 | – |
| Phosphor Bronze | PB101 | CW450K | CuSn4 | C50900 C51100 | – |
| Phosphor Bronze | PB102 | CW451K | CuSn5 | C51000 | NES838 |
| Phosphor Bronze | PB103 | CW452K | CuSn6 | C51900 | – |
| Phosphor Bronze | PB104 | CW459K | CuSn8 | C52100 | BSB24 DTD265A |
| Phosphor Bronze | DTD265A | – | – | – | BSB24, PB104 |
| Phosphor Bronze | PB3 | – | CuSn9P | – | – |
| Tin Phosphor Bronze | PB1-C | CC481K | CuSn11P-C | B143 | SAE65 |
| Tin Phosphor Bronze | PB2-C | CC483K | CuSn12-C | CC483K | CC483K |
The data on this page is for information only and may be revised without notice. It is believed to be accurate, but HAGUE FASTENERS LIMITED gives no warranty as to its accuracy or completeness, and nothing here guarantees a product for a particular use.
Choosing an alloy
Matching the alloy to the duty
Typical selections only. For stronger corrosion resistant bolting in seawater, see Monel, super duplex or titanium.
| Service need | Alloys usually considered |
|---|---|
| Seawater and marine hardware | Aluminium bronze, cupro nickel, Hiduron 191, Marinel |
| Non-magnetic, defence and instrument work | Aluminium silicon bronze, phosphor bronze, brass |
| Electrical connections | Copper, brass |
| Wear and bearing duty | Phosphor bronze, leaded bronze, gunmetal |
| Light weight | Aluminium |
What we make
Non-ferrous fasteners and components
Studs and studbolts
Stud bolts, engineer studs, waisted studs and tie bars
Bolts and screws
Hexagon, 12-point, fitted and special head bolts
Nuts
Hex, heavy hex, jam, flange and special nuts
Washers
Plain, machined, spherical and tab washers
Socket screws
Non-standard cap, set, shoulder and countersunk screws
Turned and milled parts
Plugs, pins, bushes and components to drawing
Proving the material
Certified from mill to final release
Every bar comes from an approved UK, EU or US mill or foundry with its certificate, and the heat number is carried through to release. PMI and chemical analysis confirm the grade where specified, and independent UKAS-accredited testing and EN 10204 3.1 or 3.2 certificates are supplied as your order requires. See quality and testing.
- Mill certificates and heat traceability
- Chemical analysis to confirm the alloy
- Tensile and hardness testing
- Dimensional reports to your drawing
- Laser-marked part numbers
Questions
Frequently asked questions
Which bronze is best for marine fasteners?
Aluminium bronze is the most common choice for marine fasteners because of its strength and resistance to seawater. Cupro nickel and Hiduron 191 are also used in seawater systems.
Are non-ferrous fasteners non-magnetic?
Most are. Copper alloys such as phosphor bronze, silicon bronze and brass are essentially non-magnetic, which is why non-ferrous fasteners are used in defence and instrument work. Some aluminium bronzes containing iron and nickel can show slight magnetism, so tell us if permeability matters.
Can you make bolts to NES or DTD specifications?
Yes. We make parts to British naval and defence specifications such as NES 833 and DTD 197A, as well as BS, EN and ASTM standards.
Do you make brass and copper fasteners?
Yes. We machine brass, naval brass and copper bolts, studs, nuts and special parts to drawing.
Useful tools
Free engineering tools
- Material equivalents finder: find the EN, UNS, ASTM, BS and JIS equivalents of a grade, such as 1.4462 or 316.
- Galvanic corrosion checker: check the corrosion risk when joining dissimilar metals.
- Bar weight calculator: weight of round, square and hexagon bar and plate per metre and per piece.
Free to use, no sign-up. See all our engineering tools.
Non-ferrous enquiry?
Send us your drawing or specification
Tell us the alloy, specification, sizes, quantity and documentation you need and we will come back to you quickly.