Alloyed tool steel GOST
Are you interested in GOST alloyed tool steel? Supplier Avlob offers to buy alloyed tool steel at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.
GOST 5950−2000
The standard applies to hot-rolled, forged, calibrated bars and strips of instrumental low-alloy, medium-alloy and high-alloy steel. As regards the norms of the chemical composition, this standard applies to ingots, blooms, slabs, blanks, forgings, sheet, tape, pipes and other metal products of ZX2MNF, 4XMNFS, 9KhMM.
Classification
Alloyed tool steel can be designed for processing:
- — metals and other materials in the cold state;
- — metal pressure at temperatures above 300 ° C.
By the method of further processing metal products of Groups I and II are divided into subgroups:
- a — for hot working with pressure;
- b — for cold machining (turning, gouging, milling, etc.).
On the state of the surface, the metal products of subgroup b are divided into:
- About — usual quality; P — increased quality.
The grades of steel alloys for alloying are divided into:
- low-alloy instrumental — 8ХФ, 9ХФ, 9ХФМ, 11ХФ, 13Х, В2Ф, 9X1, X, 12X1, 9ХС, ХГС, 9ХВГ, ХВПХВСГФ, 9Г2Ф, 4ХС, 6ХС, 6ХВГ;
- srednelegirovannye tools — HV
4 °F , 9H5VF, 8H6NFT, H6VF, 7HG2VMF, 6H6VZMFS, 6H4M2FS, 11H4V2MFZS2, 8H4V2MFS2, 7X3, 8X3, 5HNM, 5HNV, 5HNVS, 4HMFS, 4H5V2FS, 4H5MFS, 4H5MF1S, 4HZVMF, 4H4VMFS, ZHZMZF, 4H2V5MF, 5HZVZMFS, 5H2MNF, ЗХ2МНФ, 4ХМНФС, 5ХВ2СФ, 6ХВ2С, 6ХЗМФС; - high-alloy instrumental — X12, X12VMF, X12MF, X12F1, 05H12N6D2MFSGT.
The minimum mass fraction of molybdenum in the mark 5ХНМ = 0.10%. The sum of molybdenum and tungsten in terms of molybdenum should not be less than 0.15% and more than 0.30%. The minimum mass fraction of molybdenum in the 5X2MNF brand should be 0.40%. The sum of molybdenum and tungsten in terms of molybdenum should not be less than 0.80% and more than 1.20%. With a mass fraction of tungsten of more than 0.20%, a letter B is added to the marking: 5X2BMNF.
On demand
At the consumer’s request, 8ХФ, 9ХФ, В2Ф grades should be made with the content of sulfur and phosphorus not exceeding 0.020% (each element), and nickel — 0.20%. Stamps 8ХФ, 9ХФ and 11ХФ can be melted without vanadium; in this case they should be designated respectively: 7X, 8X, 9X and IX. In the 9X1 grade, the chromium content can be increased up to 1.9% on demand. The carbon content should be 0.78−0.92%. The supplier Avlob offers to buy an instrumental alloy steel at a bargain price. The price is the best in this segment of rental.
GOST 19265−73
This standard applies to hot-rolled, forged, calibrated bars and strips, rods with special surface finish. In the form, dimensions and limit deviations, the steel must meet the requirements:
GOST | Metal rolling |
2590−88, 2591−88; | Hot rolled round and square sections |
1133 | Forged |
440575 | Bandpass |
7417−75 | Calibrated |
14955−77 | Diameter 1−25 mm with special surface finish |
Metal products are subdivided according to macrostructure and carbide heterogeneity into groups: Group I (diameter or thickness from 80 to 200 mm), Group II (diameter or thickness up to 150 mm). By the method of further processing on the subgroups that are exposed:
- hot pressure treatment,
- cold machining.
The hardness of high-speed steels in the annealed state, the hardness of the samples after quenching and tempering, the quenching and tempering temperature should correspond to the values indicated in the table:
Make | Hardness | Temperature, ° С | |||
after annealing | after tempering with tempering HRC not less than | quenching | vacations | ||
НВ, not more than | diameter of print, mm, not less than | ||||
P18 | 255 | 3.8 | 63 | 1270 | 560 |
P6M5 | 255 | 3.8 | 64 | 1220 | 550 |
11P3AM3F2 | 255 | 3.8 | 64 | 1200 | 550 |
P6M5F3 | 269 | 3.7 | 65 | 1220 | 550 |
Р12Ф3 | 269 | 3.7 | 64 | 1250 | 560 |
Р18К5Ф2 | 285 | 3.6 | 64 | 1280 | 570 |
P9K5 | 269 | 3.7 | 64 | 1230 | 570 |
P6M5K5 | 269 | 3.7 | 65 | 1230 | 550 |
P9M4K8 | 285 | 3.6 | 65 | 1230 | 550 |
P2AM9K5 | 285 | 3.6 | 65 | 1200 | 540 |
Delivery, price
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