GOST 17431-72. Powder-like materials. Sheets of alloy M-MP. Technical conditions.
You are interested in GOST 17431−72 «Powder materials. Sheets of alloy grade M-MP «from the supplier company AvecGlob? Here you will find interesting information on this topic.
Application area
This standard applies to hot-rolled and cold-rolled sheets of M-MP alloy. The letters in the name of the alloy mean: M — molybdenum, MP — powder material.
Classification and assortment
Hot-rolled sheets are produced with a thickness of 1.0−30.0 mm, cold-rolled sheets with a thickness of 0.1−0.9 mm.
The dimensions and limit deviations for hot-rolled and cold-rolled sheets, respectively, must correspond to the values indicated in the tables:
| Thickness, mm | Limit deviations in thickness, mm | Width, mm | Length, mm | Sheet weight, kg, no more | ||||
| 1.0−2.0 | +0.20 -0.15 |
50−600 | 150−1000 | 20 | ||||
| 2.2−4.0 | +0.25 -0.15 |
50−600 | 150−1000 | 20 | ||||
| 4.5−6.0 | +0.30 -0.20 |
50−600 | 150−1000 | 20 | ||||
| 6.5−10.0 | ± 0.40 | 100−600 | 150−1000 | 25 | ||||
| 10.5−20.0 | ± 1.0 | 100−400 | Not less than 150 | thirty | ||||
| 20.5−30.0 | ± 1.5 | 100−400 | Not less than 150 | thirty | ||||
| Thickness, mm | Limit deviations in thickness for accuracy classes, mm | Width, mm | Length, mm | |||||
| I | II | |||||||
| 0.1; 0.2; 0.3; 0.4 | ± 0.05 | ± 0.03 | 50−300 | 150−1000 | ||||
| 0.5; 0.6; 0.7; 0.8 | - | ± 0.05 | 50−300 | 150−1200 | ||||
| 0.9 | - | ± 0.08 | 50−300 | 150−1200 | ||||
Supplier — AvekGlob company — offers at reasonable prices from the manufacturer powder materials (sheets from the M-MP alloy), the structure of the composition and properties of which meet the technical requirements of GOST 17431−72. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Quality
The non-flatness of sheets 1.0−3.0 mm thick should not exceed 2.0 mm per 100 mm, sheets with a thickness of St. 3.0 mm — 1.0 mm per 100 mm in length.
For sheets with a thickness of 0.4 mm or less, slight rippling is allowed, disappearing when the sheets are folded into a cylinder 100 mm in diameter.
Hot-rolled sheets are manufactured in an annealed condition or without annealing with a surface cleared of acid. On the surface of sheets there should be no cracks, captivity, sunsets, foreign inclusions.
Defects in the form of dents, impacts from rollers, scratches, scratches, edge tears and traces of stripping and etching that do not lead the sheets out of the minimum dimensions are allowed.
At the edges, the bundle is not allowed. It is allowed to darken the surface from oxidation during transportation and storage.
In hot-rolled sheets with a thickness of 1.0−6.0 mm, the structure of complete recrystallization is not allowed.
Chemical composition
The initial metal powder for sheet production should have the following chemical composition,%, not more: iron — 0.014; aluminum — 0.005; nickel — 0.005; silicon — 0.005; magnesium — 0.003; sodium — 0.015; potassium — 0.05; calcium — 0.007; tungsten — 0.4; oxygen and moisture — 0.3; molybdenum — the rest.
The particle size of the powder should not be more than 0.005 mm for 92% of the powder by weight.
Mechanical properties
For sheets with a thickness of 1.0−6.0 mm should comply with the standards specified in the table
| Thickness of sheet, mm | Temporary resistance, MPa | Relative extension, % |
| not less than | ||
| 1.0−1.8 | 690 | 8 |
| 2.0−4.0 | 690 | 10 |
| 4.5−6.0 | 640 | 8 |
Supplier — AvekGlob company — offers to purchase powder materials (sheets from the M-MP alloy), the structure of the composition and properties of which meet the technical requirements of GOST 17431−72. 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.