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Aluminium Alloys & Extrusion

A leading player in the extrusions industry in the country, Nextgen Steel & Alloys offers a wide range of alloys, including hard alloys and some special alloys for the defence and space sector.

NextGen Steel & Alloys are manufacturers from high-quality billets made out of virgin in-house metal. They have found applications in a wide spectrum of segments, such as, architectural, electrical, industrial, transport, defence and consumer durables among others. Hindalco Extrusions is a leading brand in each of these segments.

Manufacturing capabilities

A. The Circumscribing Circle Diameter (CCD)

Generally:

  • For solid profiles: maximum 330 mm*

  • For hollow profiles: maximum 225 mm*

* the range may vary depending on profile / alloy

Aluminium for extrusion is mostly alloys with the following serial numbers:
1000 series – Al
6000 series – Al + Mg + Si
7000 series – Al + Zn + Mg

The 1000 series is non heat treatable. These alloys are often chosen in products where high thermal and electrical conductivity are desired. They have low strength.

The 6000 and 7000 series are heat treatable. They are the most commonly used extrusion alloys and have a wide range of applications.

The 6000 series has good extrudability and can be solution heat treated at the extrusion temperature. Furthermore, these alloys have medium to high strength, are easy to weld and offer good resistance to corrosion, even in marine environments. The bulk of the extruded material for load bearing constructions is made from these qualities. They are used for load bearing constructions both on land and at sea.

The 6060 alloy offers medium strength and is easy to extrude even for complicated cross-sections. This alloy is the most used extrusion alloy. It has good formability during bending in the T4 condition. Typical applications are extrusions for windows and doors, lighting, awnings, handrails and furniture. This material is highly suitable for anodising, both for decorative and protective reasons.

The 6101 alloy offers virtually the same production possibilities as 6060. It is especially suitable for electrical applications where fairly high strength is required.

The 6063 alloy has slightly higher strength than 6060, but is also marginally more difficult to extrude, especially if the cross-section is complicated. Applications are for the most part the same as for 6060. This material is well suited for anodising, both for decorative and protective purposes.

The 6005A alloy has higher strength than 6063 but is slightly harder to extrude. It is suitable for anodising for protective purposes but the quality of the surface makes decorative finishing more difficult.

The 6082 alloy has high strength and is suitable for extrusion of cross-sections that are not too complicated. Typical applications are load carrying structures in the ship, offshore, transport, and building industries such as platforms, bridges, stairs, scaffolds and handrails. The material is suitable for anodising for protective purposes.

The 7000 series has the highest strength of the most used construction alloys. They have good weldability and obtain lower reduction of strength in heat affected zones than the 6000 series. Their corrosion resistance and formability are, however, not as good as those in the 6000 series. But by adding small amounts of ZrCr or Mn this can be improved. Typical applications are automotive parts, aircraft containers, bicycle frames and high speed boats.

The 7108 alloy has high strength and good fatigue strength, but has a limited extrudability and formability. The alloy is susceptible to stress corrosion in areas with high stresses. The resistance to stress corrosion is slightly increased with overageing. Welding should only be carried out in areas where the loading is lower. Typical applications are structures for building and transport applications where high strength is required. The material is suitable for anodising for protective purposes.

B. Alloy and temper :

  • Standard alloys: 1100, 1050, 2014, 5052, 5086, 6063, 6060, 6061, 6101, 6066, 6351, 6082, 6005 and 7075
  • Standard tempers: O, F, T3, T4, T5 , T6, T651, etc.

Aluminium Round Bars

Aluminium Plates

Aluminium Pipes

Aluminium coils and sheets

IS :64430 (HE-30), IS : 65032 (HE-20), IS:243456 (HE-15), IS : 54300 (N-8),
IS : 53000 (N-5), IS :  52000 (N-4), 19500, 19000 in Shapes of Sheets, Plates, 
Round Bar, Flats, Pipes in 'O', 'M' , 'WW' & 'WP' Condition.

Form of :Sheet, Plate, Strip, FlatAluminium Filler Wires, Aluminium Wire Rods

Specification: IS, BS, ASTM Etc.

Grade: Aluminium Alloy 5083, 6351 Gr. T-6, 6063 Gr. T-6, 5052, 1100 Etc.

Also we are major stockists for the below Aluminium Alloys:

  • Aluminium Wrought Alloys
  • IS 54300, IS 55000, IS 19500, IS 19000 in forms of Sheet, Plates and Round Bars
  • Aluminium 5000 series, Aluminium 2000 series
  • Aluminium Alloy Round Bars, Plates, Coils and Sheets

C. Chemical Composition in %

Alloy DIN Marking Si Fe Cu Mn Mg Cr Zn Ti Zr V B Other each Other Total
1050
1060
Al 99.5 0.25
0.25
0.40
0.35
0.05
0.05
0.05
0.03
0.05
0.03
0.05 0.05
0.05
0.03
0.03
0.05
0.05
0.03
0.03
1070 Al 99.7 0.20 0.25 0.04 0.03 0.03 0.04 0.03 0.05 0.03
1080 Al 99.8 0.15 0.15 0.03 0.02 0.02 0.03 0.03 0.05 0.02
1100

1145

Al 99 Cu +FE
0.95
+FE
0.55
+SI
0.95
+SI
0.55
0.15
0.20
 
0.05
 
0.05 
 
0.05
  
  
 
0.05
 
0.10 
  
 
  
 
 
0.05
  
 
 
0.03
  
 
 
0.05
 
0.05 
  
0.03
 
0.15 
  
 
1200 
 
1230
 
1350
Al 99 +FE
1.00
+FE
0.70
 
0.10
+SI
1.00
+SI
0.70
 
0.40
 
0.05
 
0.10
 
0.05
 
0.05
 
0.05
 
0.01
 
 
 
0.05
 
 
 
 
 
 
 
0.01
 
0.10
 
0.10
 
0.05
 
0.05
 
0.03
+V
0.02
 
 
 
0.05
+TI
0.02
 
 
 
 
 
0.05
 
0.05
 
0.03
 
0.03
 
0.15
 
 
 
0.10
3003 Al Mn Cu   
0.60
  
0.70
0.05 
0.20
1.00 
1.50
 
0.10
  
0.05
  
0.15
3004 Al Mn 1 Mg   
0.30
  
0.70
  
0.25
1.00 
0.51
0.80 
1.30
  
0.25
  
0.05
  
0.15
3005 Al Mn 1 Mg 0.5  
0.60
 
0.70
 
0.30
1.00
1.50
0.20
0.60
 
0.10
 
0.25
 
0.10
 
0.05
 
0.15
3103 Al Mn 1   
0.50
  
0.70
  
0.10
0.90 
1.50
  
0.30
  
0.10
  
0.20
+ZR 
0.10
+TI 
0.10
  
0.05
  
0.15
3105 Al Mn 0.5 Mg 0.5   
0.60
  
0.70
  
0.30
0.30 
0.80
0.20 
0.80
  
0.20
  
0.40
  
0.10
  
0.05
  
0.15
5005

5010

Al Mg 1   
0.30 
  
0.40
  
0.70 
  
0.70
  
0.20 
  
0.25
  
0.20 
0.10 
0.30
0.50 
1.10 
0.20 
0.60
  
0.10 
  
0.15
  
0.25 
  
0.30
  
  
  
0.10
  
0.05 
  
0.05
  
0.15 
  
0.15
5050 Al Mg 1.5   
0.40
  
0.70
  
0.20
  
0.10
1.00 
1.80
  
0.10
  
0.25
  
0.05
  
0.15
5051 Al Mg 1.8   
0.40
  
0.70
  
0.25
  
0.20
1.70 
2.20
  
0.10
  
0.25
  
0.10
  
0.05
  
0.15
5083 Al Mg 4.5 Mn   
0.40
  
0.40
  
0.10
0.40 
1.00
4.00 
4.90
0.05 
0.25
  
0.25
  
0.15
  
0.05
  
0.15
5154 Al Mg3   
0.25
  
0.40
  
0.10
  
0.10
3.10 
3.90
0.15 
0.35
  
0.20
  
0.20
  
0.05
  
0.15
5454 Al Mg 2.7 Mn   
0.25
  
0.40
  
0.10
0.50 
1.00
2.40 
3.00
0.05 
0.20
  
0.25
0.05 
0.20
  
0.0008
  
0.05
  
0.15
8011 Al Fe Si 0.50 
0.90
0.60 
1.00
  
0.10
  
0.10
  
0.05
  
0.05
  
0.10
  
0.08
  
0.05
  
0.15

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