Tu 48-19-270-85. Foil and strip of alloy tungsten-rhenium vacuum melting of BP-27 grade. Technical conditions.
Are you interested in TU 48−19−270−85 «Tungsten foil» from the supplier company AvecGlob? Here you will find interesting information on this topic.
Application area
These technical specifications apply to tungsten foil, which is used for special purposes. The technical level indicators established by these technical conditions meet the requirements of the first quality category.
Technical requirements
The foil is made of tungsten plates, which are manufactured according to TU 48−19−3-78. Dimensions and limiting deviations from the dimensions of the foil must meet the requirements of the table.
| Thickness, mm | Width, mm | Length, mm, not less than | |
| Nominal | Limit Deviation | ||
| 0.02 | ± 0.003 | from 5,0 to 70,0 in 5 | 500 |
| 0.03 | ± 0.005 | Also | Also |
| 0.04 | Also | Also | Also |
| 0.05 | Also | Also | Also |
| 0.06 | Also | Also | Also |
| 0.07 | ± 0.007 | Also | Also |
| 0.08 | Also | Also | Also |
| 0.09 | Also | Also | Also |
The chemical composition of the foil should be as specified in the table
| Component name | Norm |
| Mass fraction of tungsten,% | 99,948−99,959 |
| Mass fraction of impurities,%, not more than | |
| iron | 0.014 |
| aluminum | 0.004 |
| nickel | 0.005 |
| silicon | 0.014 |
| Calcium and magnesium (in total) | 0.005 |
| carbon | 0.005−0.010 |
Supplier — AvekGlob Company — offers tungsten foil at reasonable prices from the manufacturer, which meets the technical standards TU 48−19−270−85. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Requirements for product accuracy
The foil should be cut evenly, tears along the edges are not allowed. Burrs formed on the edges as a result of trimming, are not a sign of marriage.
The surface of the foil should be free of traces of oxides and cracks.
Local defects: dents, injections, pockmarks, foils, clips from the shear of the strips during rolling, roll prints, traces of grease on the surface are not a sign of marriage.
The waviness of the foil, which disappears when rolled into a roll with a diameter of 50−60 mm, is not a sign of marriage. The foil is delivered in an unannealed state.
Supplier — AvekGlob Company — offers to purchase tungsten foil of various sizes of cross-section and width, which meets the technical requirements of TU 48−19−270−85. 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.