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High Strength Aluminum Alloys

Aluminum Alloy drilling pipes

 

Material: Super High Strength Aluminum Alloys

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Material:BEW 7055 High Strength Drilling Pipe Aluminum Alloys

Compared to conventional steel drill pipe,aluminum 7055 alloy drill pipe has competitive advantages in weight,specific strength and anti-corrosion. In the condition of certain drill capacity,adopting aluminum drill pipe could get to the depth which steel pipe could not reach.High reliability aluminum alloy drill pipe is developed by the new method of connecting to steel joints and high temperature assembly technology,which makes it improve the fatigue resistance when working in deep well, inclined well and large displacement horizontal well.Examples proves that high reliability aluminum drill pipe has excellent application prospect in deep well,directional inclined well and horizontal well.

 

Advantages of BEW 7055 Aluminum Alloys

  • Light weight,1/3 of steel drill pipe.
  • H2S & CO2 corrosion resistance 
  • Flexible aluminum drill pipe has perfect fatigue resistance,its fatigue life exceeds wear life.
  • Aluminum drill pipe has non-magnetic characteristic, which is useful for magnetic logging,its available to install aluminum drill pipe with no steel joint in logging section
  • Aluminum drill pipe has little frictional resistance with the wall of well,which can reduce the drill sticking. 
  • In the condition of same hole curvature,the bending stress of aluminum drill pipe is far less than steel drill pipe,so its suitable for the drill of inclined well,small bending radius directional well and large displacement horizontal well.

 

 

Super High Strength Aluminum Alloy Performance Parameters 

 

 Grades

Condition

Density 

g/cm³

Tensile Strength     MPa

 

Yield Strength  MPa

 Elongation 

%

 Hardness 

HB

Stiffness 

GPa

Fracture Toughness MPa·m1/2

BEW 075

T6

2.8

620

560

11

150

70

36

BEW 055

T6

2.85

700

650

10

180

70

30

BEW 036

T6

2.88

720

670

9

190

70

28

BEW 034

T6

2.89

750

730

8

215

70

25

BEW 015

T6

2.9

815

767

4

220

70

20