Tu 48-19-27-88. Tungsten is lanthanized in the form of rods. Technical conditions.
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OKP code
The requirements of technical specifications Tu 48−19−221−83 correspond to the highest quality category.
| OKP code | Diameter, mm |
|---|---|
| 18 5373 4051 | from 1.0 to 1.9 |
| 18 5373 4301 | 2.0 to 2.8 |
| 18 5373 4091 | from 3.0 to 4.8 |
| 18 5373 4101 | from 5.0 to 10.0 |
Technical requirements
Tungsten lanthanized in the form of bars must comply with the requirements of these specifications. Dimensions and tolerances should be as specified below.
| Diameter, mm | Limit deviations in diameter,% | Length, not less than, mm |
|---|---|---|
| from 1.0 to 1.9 with an interval of 0.1 | ± 2.0 | 600 |
| from 2.0 to 4.8 the same as 0.2 | ± 2.0 | 400 |
| from 5.0 to 10.0 «0.5 | ± 2.0 | 150 |
According to Tu 48−19−27−88, up to 10% of bars in length of at least 70% of the above are allowed in each delivered batch. Rods with a diameter of 2, 8 mm or less are supplied drawn, more than 2.8 mm — forged. It is allowed to supply drawn rods with crushed ends up to b mm from the ends of the rod. Supplier Avlob offers to buy tungsten rolled products at a bargain price. The price is the best in this segment of rental.
Percent composition, Tu 48−19−27−88
| Component name | Mass fractions,% |
|---|---|
| The sum of impurities: iron, aluminum, molybdenum, silicon, not more than | 0.04 |
| Lanthanum oxide | 0.85−1.1 |
| Tungsten | rest |
Quality requirements
At the ends of the bars, burrs and traces and traces of the oxide film on the surface are allowed. The bars must not have internal bundles and must be straight. The deviation from straightness of a rod from 2.0 mm to 6.0 mm in diameter should not exceed 0.1 mm for a length of 120 mm, and for a rod with a diameter of 8.0 mm and 10.0 mm — no more than 1 mm for a length of 200 mm.
Storage
In closed warehouses or under a canopy, where adequate protection against mechanical and other damages is provided.
Delivery, price
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