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7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM) 7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM) 7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM) 7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM) 7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM)

7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM)

800.0 INR/Piece
Get a Price/Quote

Product Details:

  • Specific Use High strength components, Aircraft fittings, Gears and shafts
  • Standard ONORM
  • Type Bar, Rod, Round Bars
  • Processing Heat Treated, Solution Heat Treated and Artificially Aged (T6)
  • Technique Extruded, Cold Drawn
  • Application Aerospace, Transportation, Defense, Aircraft Structures
  • Tolerance +/- 0.02 mm
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7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM) Price And Quantity

  • 800.0 INR/Piece
  • 10 Piece

7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM) Product Specifications

  • Bright, Polished
  • 7075
  • 6 mm to 250 mm
  • 7075-AlZnMgCu1.5 Aluminium
  • Extruded, Cold Drawn
  • +/- 0.02 mm
  • Aerospace, Transportation, Defense, Aircraft Structures
  • Up to 6000 mm or customized
  • ONORM
  • Bar, Rod, Round Bars
  • Heat Treated, Solution Heat Treated and Artificially Aged (T6)
  • High strength components, Aircraft fittings, Gears and shafts
  • Good, but lower than other Al alloys
  • 11% min
  • T6, T651, T73
  • 2.81 g/cm3
  • Excellent
  • 40% IACS
  • up to 572 MPa
  • Good
  • 503 MPa min
  • Brinell 150 HB

Product Description

The designation 7075 / AlZnMgCu1.5 specifies one of the highest-strength aluminum alloys commercially available. When referenced alongside NORM (the Austrian Institute for Standardization), it indicates cross-compliance between European standards (EN) and historic or localized Austrian material specifications for long products (bars, rods, and round bars).

Standard & Designation Cross-Reference

Historically, Austrian standardizations align seamlessly with broader European norms. The designation breaks down across international systems as follows:

  • Chemical Designation (EN/NORM): AlZnMgCu1.5

  • Numerical Designation (EN/NORM): EN AW-7075 (per EN 573-3)

  • WNr. (Werkstoffnummer): 3.4365

  • US Standard (AA/AISI): 7075

  • Historic NORM Equivalent: Typically covered under the older NORM B 3000 series or current adoptions of European long-product standards (such as EN 755 for extruded bars and EN 754 for cold-drawn bars).

Chemical Composition (Weight %)

The "AlZnMgCu1.5" nomenclature highlights the primary alloying elements that give this 7000-series material its ultra-high strength via precipitation hardening:

Element Minimum (%) Maximum (%)
Zinc (Zn) 5.10 6.10
Magnesium (Mg) 2.10 2.90
Copper (Cu) 1.20 2.00
Chromium (Cr) 0.18 0.28
Iron (Fe) 0.50
Silicon (Si) 0.40
Manganese (Mn) 0.30
Titanium (Ti) 0.20
Aluminum (Al) Balance Balance

Typical Mechanical Properties (T6 / T651 Temper)

For round bars and rods, the T6 (solution heat-treated and artificially aged) or T651 (stress-relieved by stretching) tempers are the industry defaults. Mechanical values can fluctuate slightly depending on the bar diameter (per EN 755-2):

Property Value Range (Metric) Value Range (Imperial)
Tensile Strength ($R_m$) 500 560 MPa 73 81 ksi
Yield Strength ($R_{p0.2}$) 420 500 MPa 61 73 ksi
Elongation ($A_{50mm}$) 5% 7% min 5% 7% min
Hardness (HBW) ~150 HB ~150 HB
Modulus of Elasticity ($E$) 71 GPa 10.3 x $10^6$ psi

Key Applications & Characteristics

  • Machinability: Excellent when utilizing high-speed cutting tools. It produces tight, manageable chips rather than long, gummy ribbons common to softer aluminum grades.

  • Corrosion Resistance: Moderate. Due to the high copper content, AlZnMgCu1.5 is susceptible to stress corrosion cracking and atmospheric weathering compared to the 5000 or 6000 series. Anodizing or defensive coatings are highly recommended for exposed components.

  • Welding: Generally poor. It is considered a non-weldable alloy by conventional fusion methods due to micro-cracking and severe heat-affected zone (HAZ) softening.

  • Primary Industries: Highly favored in aerospace structural frames, military ordnance, high-stress motorsport components, and heavy-duty clamping/fastening hardware.



High Strength for Demanding Applications

7075-AlZnMgCu1.5 aluminium bars are engineered for use in high-stress environments, offering exceptional strength-to-weight ratios. Their robust mechanical properties make them a top choice for critical aircraft components, structural parts in defense, transportation gears, and precision shafts.


Superior Machinability and Finish

Thanks to their excellent machinability and bright, polished finish, these bars are ideal for fabrication projects that require precise engineering. The heat treatment processes (T6, T651, T73) further enhance their mechanical properties, resulting in reliable performance and long-lasting durability.

FAQ's of 7075-AlZnMgCu1.5 Aluminium Bar, Rod & Round Bars (ONORM):


Q: How are 7075-AlZnMgCu1.5 aluminium bars typically processed?

A: These bars are produced using techniques such as extrusion and cold drawing, followed by heat treatments like solution heat treatment and artificial aging (T6, T651, T73) to enhance strength and hardness.

Q: What makes 7075-AlZnMgCu1.5 aluminium bars suitable for aerospace and defense applications?

A: Their high tensile and yield strengths, coupled with low weight, make them ideal for structures and components that demand reliability under stress, such as aircraft fittings, gears, and shafts.

Q: When should I choose 7075-AlZnMgCu1.5 over other aluminium alloys?

A: You should opt for this grade when high mechanical strength and excellent machinability are crucial, even though it offers slightly lower corrosion resistance compared to some other aluminium alloys.

Q: Where are these aluminium bars typically supplied from in India?

A: 7075-AlZnMgCu1.5 bars are available from dealers, exporters, manufacturers, fabricators, retailers, suppliers, and traders across India, ensuring accessibility for a range of industrial needs.

Q: What are the benefits of the T6, T651, and T73 tempers in these bars?

A: These tempers significantly raise the mechanical strength and hardness of the bars, ensuring optimal performance in high-stress environments while retaining good formability and machinability.

Q: How can these aluminium bars be customized for specific project requirements?

A: They can be manufactured in a variety of diameters (6 mm to 250 mm) and lengths (up to 6000 mm or customized), with tolerance control up to +/- 0.02 mm, accommodating precise engineering demands.

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