O
Annealed for maximum ductility in heavy cold heading; parts are heat-treated afterwards.
Aerospace wire & wire rod · 2xxx series
2014A Aerospace Aluminium Wire & Wire Rod
2014 and 2014A wire and wire rod supply high-strength, heat-treatable aluminium-copper stock in coil or straight lengths for cold heading, fastener blanks, pins and small turned parts. After solution treatment and ageing to T6, the alloy reaches about 480 MPa tensile strength. Metline supplies 2014/2014A wire in coils and cut lengths, certified to AMS, ASTM and EN standards, to fastener makers and machine shops worldwide.
- Alloy
- 2014 / 2014A
- Tempers
- O, H13, T4, T6
- Diameter
- about 2 – 50 mm
- Standards
- AMS 4121 · ASTM B211 · EN 754
What is 2014A wire rod used for?
Wire and wire rod in 2014 are the small-diameter end of the alloy's bar range. Wire rod is the coiled, hot-rolled or extruded feedstock; wire is the drawn product, sized and tempered for heading, forming or machining.
Most demand comes from fastener and screw-machine work. Blanks are cold headed in a soft or naturally aged condition, then solution treated and aged to full strength, or headed directly from T4 stock where the forming is light. Drawn wire in T6 is also fed into automatic lathes for pins, bushings and inserts that need higher strength than 6061 can offer.
Like all 2xxx alloys, 2014 needs a protective finish in service. Fasteners and pins are normally anodised or conversion-coated, and installed wet with sealant in airframe joints.
Composition (wt %)
| Element | 2014 (AA / ASTM) | 2014A (EN AW-2014A) | Role |
|---|---|---|---|
| Copper (Cu) | 3.9 – 5.0 | 3.9 – 5.0 | Main strengthening element (Al2Cu precipitates) |
| Silicon (Si) | 0.50 – 1.2 | 0.50 – 0.9 | Speeds the ageing response; the "Si" in AlCu4SiMg |
| Manganese (Mn) | 0.40 – 1.2 | 0.40 – 1.2 | Grain control and toughness |
| Magnesium (Mg) | 0.20 – 0.8 | 0.20 – 0.8 | Adds to precipitation hardening |
| Iron (Fe) | 0.7 max | 0.50 max | Impurity; lower Fe improves toughness |
| Chromium (Cr) | 0.10 max | 0.10 max | Impurity |
| Nickel (Ni) | — | 0.10 max | Impurity |
| Zinc (Zn) | 0.25 max | 0.25 max | Impurity |
| Titanium (Ti) | 0.15 max | 0.15 max (Ti + Zr 0.20) | Grain refiner |
| Others, each / total | 0.05 / 0.15 | 0.05 / 0.15 | |
| Aluminium (Al) | Remainder | Remainder |
Mechanical and physical properties
| Temper | Tensile strength | Yield strength (0.2 %) | Elongation | Brinell hardness |
|---|---|---|---|---|
| O (annealed) | 186 MPa / 27 ksi | 97 MPa / 14 ksi | 18 % | 45 HB |
| T4, T451 | 427 MPa / 62 ksi | 290 MPa / 42 ksi | 20 % | 105 HB |
| T6, T651, T6511 | 483 MPa / 70 ksi | 414 MPa / 60 ksi | 13 % | 135 HB |
Minimum properties for 2014-T6 wire and rod under ASTM B211 and AMS 4121 are in the order of 450 MPa tensile and 380 MPa yield; the certificate reports values for your diameter and lot. Shear strength of T6 material is typically about 290 MPa, the figure fastener designers use for single-shear joints.
Physical properties of 2014 (T6 unless noted)
- Density
- 2.80 g/cm³ (0.101 lb/in³)
- Modulus of elasticity
- about 73 GPa (10.6 Msi)
- Melting range
- about 507 – 638 °C
- Thermal conductivity
- about 154 W/m·K (T6); about 190 W/m·K (O)
- Electrical conductivity
- about 40 % IACS (T6); about 50 % IACS (O)
- Coefficient of thermal expansion
- about 23 µm/m·°C (20 – 100 °C)
Tempers for wire and wire rod
H13
A lightly drawn, controlled condition sometimes ordered as heading stock. H tempers are unusual for 2014, so agree the property limits at order.
T4
Solution treated and naturally aged; good balance of headability and strength.
T6
Fully aged for machining stock and parts that are not heavily formed.
Specifications and equivalents
Wire specifications
- AMS 4121
- 2014-T6 rolled or drawn bar, rod and wire
- AMS-QQ-A-225/4
- 2014 bar, rod and wire (former QQ-A-225/4)
- ASTM B211
- Rolled or cold-finished bar, rod and wire
- EN 754-2 / EN 573-3
- Drawn EN AW-2014 / 2014A wire and composition
| System | Designation | Note |
|---|---|---|
| Aluminum Association / UNS | 2014 / A92014 | Basis of ASTM and AMS specifications |
| European (EN) | EN AW-2014 (AlCu4SiMg); EN AW-2014A (AlCu4SiMg(A)) | 2014A has tighter Si and Fe limits |
| German Werkstoff | 3.1255 | AlCuSiMn in older DIN usage |
| ISO | AlCu4SiMg | ISO 209 |
| Japan (JIS) | A2014 | JIS H4000 / H4040 / H4140 |
| France (old NF) | AU4SG | Still seen on older drawings |
| China (GB) | 2A14 (close equivalent) | Similar chemistry; check limits before substituting |
Supply range and packing
Supply range
- Diameter
- about 2 – 50 mm; round as standard, hexagon and square on request
- Form
- Coils, spools or straightened and cut lengths
- Coil weight
- From small coils for trials up to heavy coils for heading lines, as agreed
- Diameter tolerance
- To ASTM B211 / ANSI H35.2 or EN 754-3; tighter on request
- Surface
- Clean drawn finish, lubricated or dry as required
Testing and documentation
- Chemistry per melt and tensile tests per lot
- Upset or heading test for heading-quality wire on request
- Diameter and ovality checked along the coil
- Surface inspection for seams and laps that would split during heading
- EN 10204 3.1 certificate with full traceability
Applications
- Special fasteners, pins and studs for aircraft and defence hardware
- Screw-machine parts such as inserts, bushings and spacers
- Cold-headed blanks heat-treated after forming
- Small high-strength spring clips and formed parts aged after forming
For standard aerospace solid rivets, 2117 (AD), 2017 (D) and 2024 (DD) are the usual alloys; 2014 wire is chosen for special parts where its higher yield strength helps.
How to order
- SpecifyAlloy, temper, diameter, coil or cut-length format, and quantity.
- Name the standardAMS 4121, ASTM B211, EN 754 or your fastener specification.
- QuoteWe confirm availability, tolerance, test scope, certification and delivery terms (EXW, FOB, CIF or DAP) for your port or site.
- Process and inspectWire is coiled or cut, labelled and checked for diameter and surface.
- Document and shipEach lot ships with an EN 10204 3.1 mill test certificate traceable to the heat and lot, plus a packing list. Material is packed in seaworthy wooden cases with moisture protection; third-party inspection can be arranged on request.
References and standards
- ASTM B211 – Aluminum and Aluminum-Alloy Rolled or Cold-Finished Bar, Rod and Wire
- SAE AMS 4121 – Aluminum Alloy Bars, Rods and Wire, 2014-T6
- EN 573-3 – Chemical composition and form of wrought products
- The Aluminum Association – International Alloy Designations
2014A aluminium (aluminum) wire: FAQ
Can 2014 wire be cold headed?
Yes, in O or T4 temper. Severe heads are formed in O and the parts are solution treated and aged afterwards.
Is 2014 used for standard aircraft rivets?
Not usually. Standard solid rivets use 2117, 2017 or 2024. 2014 wire is used for special fasteners and turned parts.
What is the strength of 2014-T6 wire?
Typical tensile strength is about 483 MPa and yield about 414 MPa, with shear strength around 290 MPa.
What packing do you use?
Coils are strapped, wrapped against moisture and palletised or cased; straight lengths are bundled and boxed.
Which certificate is supplied?
An EN 10204 3.1 mill certificate with chemistry and mechanical results for the lot.
Need 2014A wire or wire rod?
Send diameter, temper, format and quantity and we will confirm availability and price.
