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Titanium tubes according to GOST 21945-76

Seamless hot-finished tubes of titanium alloys

          

Titanium tubes are produced of titanium alloys VT1-0, PT-1M, PT-7M, PT-3V.

 

Titanium tubes size range

External diameter of titanium tubes, mm

Wall thickness of titanium tubes, mm

Length of titanium tubes, m

83,0

6,0-12,0 (10,0-12,0)

Random  1,5-7,0

fixed in random length range

 

89,0-95,0

6,0-14,0 (10,0-14,0)

102,0

6,0-18,0 (11,0-20,0)

108,0

6,0 – 22,0 (10,0-22,0

114,0

6,0 –24,0 (10,0-24,0)

121,0-140,0

6,0 – 25,0 (10,0-25,0)

146,0 – 159,0

7,0 - 22,0 (10-22,0)

168,0

8,0 – 22,0 (10,0-22,0)

180,0 – 194,0

8,0 – 26,0 (10,0-26,0)

203,0 – 219,0

9,0 – 27,0 (10,0-22,0)

245,0 – 273,0

10,0 – 30,0 (10,0-30,0)

325,0

12,0 – 30,0 (12,0-30,0)

 
Titanium tubes chemical composition

Alloy grade

of titanium tube

Standard

Chemical composition of titanium tube, % not more than

Ti

Al

C

Si

Fe

N

O

H

Zr

V

admixtures

VT1-0

GOST 19807-91

base

-

0,07

0,10

0,25

0,04

0,20

0,005

-

-

0,30

PT-1M

ОСТ 1 92077-91

base

0,2-0,7

0,07

0,10

0,20

0,04

0,12

0,005

0,30

-

0,30

PT-7M

GOST 19807-91

base

1,8-2,5

0,10

0,12

0,25

0,04

0,15

0,005

2,0-3,0

-

0,30

PT-3V

GOST 19807-91

base

3,5-5,0

0,10

0,12

0,25

0,04

0,15

0,006

0,30

1,2-2,5

0,30

In alloy VT1-0 admissible content of aluminium is up to 0,7%.

Hydrogen content is indicated according to requirements of standard.

 

Titanium tubes mechanical properties

Alloy grade

of titanium tube

At t 20 °C

Temporary tensile strength, MPa

Yield strength, MPa

Relative elongation,%

Relative reduction of area, %

Impact strength, J/mm2

Не менее

VT1-0

343-568

245

20

42

0,78

PT-1M

343-539

245

24

47

0,88

PT-7M

470-686

372

18

36

0,78

PT-3V

559-862

519

10

30

0,64

 

Tests

Titanium tubes are to be tested by flattening and 100% ultrasonic tested.

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