Seamless aluminum tubular busbar

Seamless aluminum tubular busbar refers to a seamless aluminum tube that is made of pure aluminum or aluminum alloy and processed into a hollow along its length. The size of the seamless tube is more uniform, and the performance is better than the seam tube, so the seamless aluminum alloy bus compared with ordinary aluminum alloy busbar tubes, the tube has better mechanical and electrical properties.

Seamless aluminum tubular busbar

Low loss, high capacity, high bandwidth

The commonly used alloys for seamless aluminum tubular busbars are 6063, 6061 and 6101. 6063 alloy is widely used in outdoor high-voltage substation bus bars with its excellent mechanical and electrical properties. Where high strength and low conductivity are required, 6061 aluminum alloy busbar tubes are used. In the case of requiring high electrical conductivity and minimal loss of mechanical properties, 6101 alloy is used.

Specs:

1.Executive standard: GB/T27676-2011 seamless aluminum tubular busbar

2.Alloy: 6063, 6101, 6061

3.Temper: T6

4.The product has a hollow tube structure, with a glossy surface, beautiful appearance and uniform size.

5.Outer diameter:φ60mm to φ450mm;

6.Wall thickness: from 3mm to 15mm,

7.Length:Maximum 15 meters

Features of seamless aluminum tubular busbar:

1.Good shielding effect and strong anti-interference;

2.Better mechanical strength;

3.Low loss, large capacity and bandwidth;

4.Not crack or be damaged easily.

The Chemical composition and Mechanical properties of seamless aluminum tubular busbar

Alloy

Chemical component(%)

Si

Fe

Cu

Mn

Mg

Cr

Zn

B

Ti

Ni

Other

Al

Each

Total

 

6063(6063G)

0.2-

0.6

≤0.35

≤0.1

≤0.1

0.45-

0.9

≤0.10

-

≤0.05

≤0.15

Remain

6101

0.30-

0.7

≤0.50

≤0.10

≤0.03

0.35-0.8

≤0.03

≤0.10

0.06

-

≤0.03

≤0.10

Remain

Property / Alloy

6101

6063

Temper

T6

T6

Density(g/cm³)(20℃)

2.73

2.75

Melting point  ℃

616-665

630-650

Tensile Strength MPa

≥210

≥205

Yield strength MPa

≥185

≥175

Elongation %

≥8

≥8

Thermal conductivity,

(K /℃ x cm x s)

0.5

0.5

Electrical Conductivity IACS%

52

52

20℃ Temperature coefficient of electrical  resistance

I/℃

0.0032

0.0041

20℃ Electrical Resistivity

β,Ω.m㎡/m

0.031

0.034

Poisson's Coefficient μ

0.31

0.315

The external diameter allowable deviation and wall thickness allowable deviation of seamless aluminum tubular busbar

The external diameter allowable deviation (unit: mm)

Nominal  external diameter

>50~75

>75~120

>120~150

>150~200

>200~250

Normal level ±

0.23

0.30

0.40

0.60

0.80

High Precision level ±

0.15  

0. 20

0.30

0.50

0.70

The Wall thickness allowable deviation (unit: mm)

Nominal Wall Thickness

>3.0~4.0

>4.0~5.0

>5.0~8.0

>8.0~10

>10~15

Average wall thickness and

Nominal Wall Thickness  ±

Normal level

0.30

0.40

0.50

0.70

0.80

High Precision level

0.15

0.15

0.20

0.30

0.40

Any wall Thickness and

Nominal Wall Thickness  ±

Normal level

0.40

0.50

0.60

0.80

1.00

High Precision level

0.20

0.20

0.30

0.40

0.50

Application of seamless aluminum tubular busbar:

Seamless aluminum tubular busbar is mainly used as overcurrent conductor in power construction projects, such as conductor connection between power grid transmission conductor and transformer substation, jumper in transmission line, connection conductor in power equipment and high current DC ice melting device,It is a new conductor to replace the traditional rectangular, groove, bar-shaped bus and soft conductor.

It is one of the key equipment (materials) in power transmission and transformation system, and plays a vital role in the safe and reliable operation of power transmission and transformation system and power equipment.

Common tubular busbar, Liner tube & sealing ball size or sealing cover size.

Main Bus Pipe Tube

Liner Bus Pipe Tube

Sealing ball  or

Sealing cover

OD

(mm)

Wall Thickness

(mm)

OD

(mm)

Wall Thickness

(mm)

OD

(mm)

80

4

71

3

70

90

5

79

4

79

100

5

89

5

89

110

5

99

5

99

120

5

109

5

109

130

7

115

7

115

150

7

135

7

135

150

10

129

10

129

170

7

155

7

155

170

10

149

10

149

200

10

179

10

179

250

10

229

10

229

Get In Touch,Let's talk

Hello! If you are interested in our products and leave your demand, we will give you an accounting quotation in time.
Or you can send your request to our email address: info@chalcoaluminum.com

Send Your Request
  • 0086-371- 55689814 55686476
  • info@chalcoaluminum.com
  • 126#4 Building A,No.89 Science Avenue,National HI-Tech Industry Development Zone,Zhengzhou,Henan
Social touch

contact us
Get a quote Leave Message
Hi,may I help you with products, price, etc?