Tu 14-3-843-79. Pipes from alloys VT-1-0, OT4, OT4-1 according to Ost 1 90050-72. Pipes especially thin-walled from alloys on the basis of titanium ПТ-1М, ПТ-7М
Are you interested in TU 14−3-843−79 «Titanium seamless seamless pipes made of PT-1M and PT-7M alloys.» Technical conditions «from the supplier company AvecGlob? Here you will find interesting information on this topic.
Application area
These technical conditions apply to the supply of seamless cold-deformed pipes with extra-thin walls, which are made of titanium alloys of PT-1M and PT-7M grades. As the initial preform, a hot-rolled pipe is used, which is supplied in accordance with TU 1−5-132−78.
The range of produced pipes
It is given in the table:
| Outside diameter | Wall thickness | Length , m | ||
| in inches | in mm | in inches | in mm | |
| 0.236−3.937 | 6.0−100.0 | 0.0059, 0.0709, 0.070 | 0.15−1.8 | 0.8−8.0 |
Chemical composition
Listed in the table
| Brand alloy | Standard of delivery of initial blanks | Content of elements in percentage | ||||||||||
| Ti | Al | C | Si | Fe | N | O | H | Zr | V | admixtures | ||
| PT-1M | OST 1 92077−91 | the basis | 0.2−0.7 | 0.07 | 0.10 | 0.20 | 0.04 | 0.12 | 0.007 | 0.30 | - | 0.30 |
| PT-7M | GOST 19807−91 | the basis | 1.8−2.5 | 0.10 | 0.12 | 0.25 | 0.04 | 0,15 | 0.007 | 2.0−3.0 | - | 0.30 |
The table shows the upper percentage of bound hydrogen, and the average values for the other elements.
Supplier — AvekGlob Company — offers, at reasonable prices from the manufacturer, seamless extra-thin-walled pipes made of titanium alloys of PT-1M and PT-7M grades and corresponding to technical requirements of TU 14−3-843−79. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Mechanical properties and quality control
The mechanical characteristics of the finished product are given in the table:
| Brand alloy | At room temperature | |
| Temporary resistance to rupture in titanium tubes, MPa | Relative elongation in titanium tubes,% | |
| Not less than | ||
| PT-1M | 345−570 | 25 |
| PT-7M | 480−670 | 24 |
Features of the test
Titanium pipes are subjected to a 100% hydraulic test at internal pressures of 3… 5 at, 100% ultrasonic non-destructive testing, and also a flattening test.
Supplier — AvekGlob Company — offers to purchase in the assortment various profiles of round tubes made of titanium alloys of PT-1M and PT-7M grades and corresponding to technical requirements of TU 14−3-843−79. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.