Hiduron® 130
Also known as Hidurax Special, DIN 2.1504
Hiduron® 130 is a high-strength cupronickel supplied in the hot worked condition, combining seawater corrosion resistance, low magnetic permeability and excellent anti-galling properties without any heat treatment. We stock bar in the UK and USA. Plate, tube and fittings are available on enquiry; forgings and castings to order.
Hiduron® 130 is a cupronickel strengthened by finely dispersed nickel-aluminium precipitates formed during a controlled forging process. Strength is achieved without further heat treatment, giving one of the highest strength-to-weight ratios of any commercially available copper alloy.
Its combination of seawater corrosion resistance, low magnetic permeability, anti-galling behaviour against stainless steels and impact strength down to -196°C makes it the material of choice for subsea connectors, naval equipment and oil and gas tooling. We stock bar in the UK and USA. Plate, tube and fittings are available on enquiry; forgings and castings to order.
- Superior strength and erosion/corrosion resistance compared to conventional copper nickels
- High wear resistance and excellent anti-galling properties against stainless steels
- High corrosion resistance in marine and seawater environments
- No loss of impact strength down to -196°C - suitable for cryogenic and ultra-deep subsea use
- Low magnetic permeability (virtually non-magnetic)
- No heat treatment required - strength achieved through the forging process
- Good anti-fouling properties and freedom from hydrogen embrittlement
- Good machinability and ability to take an excellent surface finish
| Element | Min | Max |
|---|---|---|
| Nickel (Ni) | 13.00 | 16.00 |
| Copper (Cu) | Bal | |
| Aluminium (Al) | 2.00 | 3.00 |
| Iron (Fe) | 0.60 | 1.50 |
| Manganese (Mn) | 0.10 | 1.00 |
| Chromium (Cr) | - | 0.50 |
| Silicon (Si) | - | 0.10 |
| Lead (Pb) | - | <0.05 |
| Tin (Sn) | - | <0.20 |
| Zinc (Zn) | - | <0.30 |
| Property | Imperial | Metric |
|---|---|---|
| 0.2% Proof stress (min) | 91.4 ksi | 630 N/mm² |
| Tensile strength (min) | 123.3 ksi | 850 N/mm² |
| Elongation (5.65√S0) | 10% | 10% |
| Hardness (Brinell) | >240 HB | >240 HB |
| Impact strength (Room Temp) | >14 J |
| Property | Imperial | Metric |
|---|---|---|
| 0.2% Proof stress (min) | 84.1 ksi | 580 N/mm² |
| Tensile strength (min) | 111.7 ksi | 770 N/mm² |
| Elongation (5.65√S0) | 10% | 10% |
| Hardness (Brinell) | >229 HB | >229 HB |
| Impact strength (Room Temp) | >14 J |
| Property | Imperial | Metric |
|---|---|---|
| 0.2% Proof stress (min) | 80.5 ksi | 555 N/mm² |
| Tensile strength (min) | 111.7 ksi | 770 N/mm² |
| Elongation (5.65√S0) | 10% | 10% |
| Hardness (Brinell) | >229 HB | >229 HB |
| Impact strength (Room Temp) | >14 J |
| Property | Value |
|---|---|
| Density (kg/m³) | 8500 |
| Magnetic permeability (20°C) | <1.01 |
| Young's modulus (kN/mm²) | 141 |
| Modulus of rigidity (kN/mm²) | 52 |
| Electrical conductivity, 20°C (mΩ/mm²) | 1.71 (10% IACS) |
| Mean coefficient of thermal expansion, 20-300°C (m/m/°C) | 16.4 x 10⁻⁶ |
| Specific heat, 20°C (J/kg.K) | 435 |
| Thermal conductivity, 20°C (W/m.K) | 46 |
Equivalents & cross-references
Standard designations
- DIN
- 2.1504German material number
- DTD
- 900/4805UK Defence Technology Directorate specification
Hiduron® 130 is also designated DIN 2.1504 and DTD 900/4805.
Trade name equivalents
-
Hidurax Special
Hidurax Special is an alternate designation for Hiduron® 130.
Common questions
What is Hiduron 130?
Hiduron 130 is a high-strength cupronickel supplied in the hot worked condition, covered by DIN 2.1504 and DTD 900/4805 (also known as Hidurax Special). Aluminium is its key strengthening element, forming a finely dispersed gamma-prime nickel-aluminium precipitate during a controlled forging process, so no further heat treatment is needed, making it one of the highest strength copper alloys commercially available. Langley Alloys stocks it as bar; plate, tube and fittings are available on enquiry, and forgings and castings are to order.
What is Hiduron 130 used for?
The major use of Hiduron 130 is in subsea hydraulic and electrical connectors such as flying lead connectors for stab plates. It is also used in naval winches, seawater valves and marine engineering; oil and gas pump and valve shafts, valve spindles, hydraulic pistons and wireline tooling; aerospace landing bearings and flight refuelling connectors; and automotive valve seat inserts and thrust washers in high performance engines.
Why choose Hiduron 130 for subsea and marine applications?
Hiduron 130 offers superior strength, general corrosion resistance and erosion/corrosion resistance compared to conventional copper nickels, with excellent resistance to seawater and marine and industrial atmospheres and high resistance to crevice corrosion. It has excellent anti-galling properties, particularly against stainless steels, good anti-fouling properties, freedom from hydrogen embrittlement, and low magnetic permeability. It shows no loss of impact strength down to -196°C, facilitating cryogenic and ultra-deep subsea applications, and achieves a 0.2% proof stress up to 630 N/mm².
What is Hidurax Special?
Hidurax Special is an alternate designation for Hiduron® 130, a high-strength cupronickel alloy supplied by Langley Alloys in the hot worked condition. It meets DIN 2.1504 and DTD 900/4805.
What is DIN 2.1504?
DIN 2.1504 is the German material designation for the cupronickel alloy stocked by Langley Alloys as Hiduron® 130. It is also supplied to DTD 900/4805 and is used primarily in subsea hydraulic and electrical connectors.
What is the density of Hiduron 130?
Hiduron 130 has a density of approximately 8.50 g/cm³ (8500 kg/m³).
Is Hiduron 130 magnetic?
No. Hiduron 130 has a very low magnetic permeability and is effectively non-magnetic, which suits naval and sensor applications.
Datasheets
High-strength bronze for subsea
In this Technical Corner, Rodney explores Hiduron 130, one of the strongest copper-based alloys, invented by Langley Alloys back in the 1940s.
This age-hardened bronze combines excellent seawater corrosion resistance with resistance to biofouling and galling, and holds its strength at any section size, making it ideal for subsea couplings, connectors, valve trim and naval hardware.
Visit our YouTube channelPeeled, polished and ultrasonically tested as standard.
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