2000 Series Aluminum Alloys

2000 Series Aluminum Alloys

2000 Series Aluminum Alloys are alloyed with copper and can be precipitation hardened to strengths comparable to steel. The aluminum-copper alloys typically contain between 2 to 10% copper, with smaller additions of other elements. 2000 Series Aluminum alloys include some of the highest strength heat treatable aluminum alloys.

Flat, Shaped and Round Wire

Applications

• Knobs

• Clock parts

• Fittings

• Screws

• Gears

• Compressor Rings

• Structural applications

• Electrodes

• Welding and filler wire

2000 Series Aluminum Description

2000 series of alloys are a set of "hard alloys". The aluminum-copper alloys typically contain between 2 to 10% copper, with smaller additions of other elements. The copper provides substantial increases in strength and facilitates precipitation hardening. The introduction of copper to aluminum can also reduce ductility and corrosion resistance. The susceptibility to solidification cracking of aluminum­ copper alloys is increased; consequently, some of these alloys can be the most challenging aluminum alloys to weld. These alloys include some of the highest strength heat treatable aluminum alloys.

Chemistry Typical

UNS# A92011 | ALUMINUM Balance | ADDITIONAL ELEMENTS

5.0-6.0 Cu, 0.20-06 Pb, 0.70 Fe max, 0.40 Si max, 0.30 Zn max,
0.05 max other (each), 0.15 max other (total)

UNS# A92017 | ALUMINUM Balance | ADDITIONAL ELEMENTS

3.5-4.5 Cu, 0.40-1.0 Mg, 0.20-0.80 Si, 0.7 Fe max, 0.4-0.80 Mn max, 0.25 Zn max, 0.15 Ti max, 0.10 Cr max, 0.05 max other (each),
0.15 max other (total)

UNS# A92024 | ALUMINUM Balance | ADDITIONAL ELEMENTS

3.8-4.9 Cu, 1.0-1.8 Mg, 0.30-0.9 Mn, 0.5 Si max, 0.50 Fe max,
0.25 Zn max, 0.15 Ti max, 0.10 Cr max, 0.05 max other (each),
0.15 max other (total)

UNS# A92048 | ALUMINUM Balance | ADDITIONAL ELEMENTS

2.8-3.8 Cu, 1.2-1.8 Mg, 0.20-0.6 Mn, 0.15 Si max, 0.20 Fe max,
0.25 Zn max, 0.10 Ti max, 0.05 max other (each), 0.15 max other (total)

UNS# A92219 | ALUMINUM Balance | ADDITIONAL ELEMENTS

5.8-6.8 Cu, 0.20-0.40 Mn, 0.10-0.25 Zr, 0.10-0.20 Ti, 0.05-.015 V, 0.02 Si max, 0.30 Fe max, 0.02 Mg max, 0.10 Zn max, 0.0008 Be max, 0.05 max other (each), 0.15 max other (total)

Physical Properties of 2000 Series Aluminum

Typical Density: 0.099 - 0.103 lbs/in3, 2.75 - 2.84 g/cm3

Electrical Conductivity: (% IACS at 68°F, annealed): 39-50%

Thermal Conductivity: BTU-in/hr-ft2-°F at 68°F: 1050 - 1340

Mean Coefficient of Thermal Expansion: µin/in-°F:
68 - 572 °F: 13.6 - 14.1

Modulus of Elasticity: KSI
10.2 - 10.6 x 103 in tension

Melting Temperature: 935 - 1190 °F (502 - 643 °C)

Forms

• Profile Wire (Shaped Wire

• Round Wire

• Flat Wire

• Square Wire

Mechanical Properties at Room Temperature

Properties: Temper 0

Ultimate Tensile Strength: 25 KSI min (172 MPa min)
Yield Strength: 10 KSI min (168 MPa min)
Elongation: 12% min

Properties: Tempered

These alloys can be cold worked to various tempers.

Additional Properties

Corrosion Resistance

Contact Ulbrich Wire for specific information.

Wire Finishes

Heat Treatment

These alloys are hardenable by cold working and by heat treatment.

Welding

Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes.

Source:ulbrich alloy