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
|
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|
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) |
|
|
Alloy
grade of
titanium tube
|
Standard
|
Chemical
composition of titanium tube, % not more than
|
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|
Ti |
Al |
C |
Si |
Fe |
N |
O |
H |
Zr |
V |
admixtures |
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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
|
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|
Temporary
tensile strength, MPa |
Yield
strength, MPa |
Relative
elongation,% |
Relative
reduction of area, % |
Impact
strength, J/mm2 |
|
|
Не
менее |
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|
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 |
Titanium tubes are to be tested by flattening and 100% ultrasonic tested.