Tu 48-19-472-90. Blanks sheet dimensional from molybdenum of marks MCH and MCHVP.
You are interested in TU 48−19−472−90 «Blanks sheet dimensional from molybdenum of grades MCH and MCHVP. Technical specifications «from the supplier company AvecGlob? Here you will find interesting information on this topic.
Application area
These technical conditions apply to dimensional sheet blanks, which are made of molybdenum of MCH and MCHVP grades, and are designed for manufacturing large-sized structures used in electrothermal production and other industries.
Technical requirements
Molybdenum billets of MCH and MCHVP grades must be made from powder molybdenum blanks of MCH grade and molybdenum ingots of MCHVP grade, which are obtained by vacuum melting technology.
The dimensions and limit deviations for the dimensions of the blanks shall be as specified in the table
| Thickness, mm | Make | ||||
| MCH | MCHVP | ||||
| Nomine. | Prev off | Width, mm | Length, mm | Width, mm | Length, mm |
| from 0.10 to 0.20 inclusive. in 0.05 | ± 0.03 | from 100 to 200 inclusive. | from 400 to 600 inclusive. | from 100 to 200 inclusive. | from 400 to 600 inclusive. |
| from 0,25 to 0,35 inclusive. in 0.05 | ± 0.04 | from 100 to 200 inclusive. | from 350 to 600 inclusive. | from 100 to 200 inclusive. | from 400 to 600 inclusive. |
| from 0,40 to 0,60 inclusive. in 0.05 | ± 0.06 | from 100 to 200 inclusive. | from 400 to 600 inclusive. | from 100 to 200 inclusive. | from 400 to 600 inclusive. |
| from 0.70 to 0.90 inclusive. through 0,1 | ± 0.07 | from 200 to 300 inclusive. | from 200 to 600 inclusive. | from 200 to 300 inclusive. | from 200 to 600 inclusive. |
| from 1,0 to 2,0 inclusive. in 0.2 | + 0.1 — 0.2 |
from 100 to 400 inclusive. | from 100 to 900 inclusive. | from 100 to 300 inclusive. | from 200 to 600 inclusive. |
| from 2,1 to 3,0 inclusive. in 0.3 | + 0.1 — 0.2 |
from 100 to 400 inclusive. | from 100 to 700 inclusive. | from 100 to 300 inclusive. | from 200 to 500 inclusive. |
| from 3,5 to 4,0 inclusive. in 0.5 | + 0.2 — 0.5 |
from 100 to 400 inclusive. | from 100 to 500 inclusive. | from 100 to 300 inclusive. | from 200 to 300 inclusive. |
| from 4,5 to 6,0 inclusive. in 0.5 | + 0.2 — 0.5 |
from 100 to 400 inclusive. | from 100 to 400 inclusive. | from 100 to 200 inclusive. | from 200 to 300 inclusive. |
| from 6,5 to 10,0 inclusive. in 0.5 | + 0.2 — 0.5 |
from 100 to 300 inclusive. | from 100 to 300 inclusive. | - | - |
| from 11.0 to 20.0 inclusive. through 1.0 | ± 0.9 | from 50 to 200 inclusive. | from 100 to 300 inclusive. | - | - |
The chemical composition of the blanks must meet the requirements specified in the table (molybdenum-base):
| Component name | Mass fraction,% | |
| grade MCH | IEMC brand | |
| Impurities, no more than | ||
| aluminum | 0.004 | 0.004 |
| iron | 0.010 | 0.010 |
| nickel | 0.005 | 0.005 |
| silicon | 0.010 | 0.010 |
| Calcium and magnesium (in total) | 0.005 | 0.005 |
| carbon | 0.010 | 0.030 |
| oxygen | 0.008 | 0.005 |
| nitrogen | - | 0.005 |
| hydrogen | - | 0.0008 |
Supplier — AvekGlob Company — offers at affordable prices from the manufacturer sheet-shaped billets of molybdenum, which meet the technical requirements of TU 48−19−472−90. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Quality indicators
Edges of blanks should be chopped off or cut off. Stratification on the edges of workpieces, which occurs after trimming, is allowed on a width of 2.5 mm; length — 5.0 mm and is not a defective sign. In agreement with the consumer, blanks with a thickness of more than 2.0 mm are supplied without edge chipping.
The surface of the blanks must be cleaned of the oxide film or degreased. As agreed with the consumer, traces of process lubrication are allowed on the surface of the blanks.
Cracks and delaminations on the surface of blanks are not allowed. Impressions of rolls, pricks, indentations, scratches, traces of stripping that do not lead to thickness beyond the tolerances allowed, shades of etching are not a defect.
Blanks should be manufactured with the following tolerances in terms of flatness: deviation from flatness along the rolling direction (deflection) should be no more than 10% of the measured length of blanks; the deviation from flatness across the rolling direction (bumpiness) should not be more than 5% of the measured width of the workpieces. The total waviness of the blanks is not a sign of marriage.
The mechanical properties of the workpieces along the rolling direction must meet the requirements specified in the table:
| Thickness, mm | Strength, MPa, not less than | Relative extension, not less than,% |
| 0.10 | 882 | 1.5 |
| 0,15 | 882 | 1.5 |
| 0.20 | 882 | 1.5 |
| 0.25 | 882 | 1.5 |
| 0.30 | 980 | 2.0 |
| 0.35 | 980 | 2.0 |
| 0.40 | 980 | 2.0 |
| 0.45 | 980 | 2.0 |
| 0.50 | 980 | 2.0 |
| 0.55 | 980 | 2.0 |
| 0.60 | 980 (100) | 2.0 |
Supplier — AvekGlob Company — offers to purchase sheet-shaped billets from molybdenum that meet the requirements of TU 48−19−472−90. 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.