GOST 26530-85
GOST 26530−85 (ST SEV 4658−84) sintered hard Alloys the. Brand
GOST 26530−85
(ST CMEA 4658−84)
Group 56
STATE STANDARD OF THE USSR
SINTERED HARD ALLOYS THE
Brand
Tungsten free sintered hard alloys. Grades
OKP 19 6680
Date of introduction 1986−01−01
DEVELOPED by the Ministry of nonferrous metallurgy of the USSR
PERFORMERS
Cand. tech. of Sciences;* N. Kudrya, A. A. Zaluzhny, E. I. Sapronov, G. G. Kapranova, E. G. Stepanov, V. I. Tretyakov, M. P. Borisova
________________
* The text matches the original. — Note the manufacturer’s database.
INTRODUCED by the Ministry of nonferrous metallurgy of the USSR
Member Of The Board Of A. P. Snurnikov
APPROVED AND put INTO EFFECT by Decision of the USSR State Committee on standards of 24 April 1985 N 1173
1. This standard applies to the hard alloys, intended for equipment of the cutting tool, and also for making wear parts.
This standard is fully consistent with CT CMEA 4658−84.
2. Brand chemical composition and main physical and mechanical properties of alloys shall be as specified in the table.
| Mark |
OKP code |
Application group according to ISO 513−75 | The main components in the mixture of the initial powders (excluding impurities), %, by mass |
Physico-mechanical the properties of the alloys | |||||
| Titanium carbide |
Carbo — nitride of titanium |
Nickel |
Molybdenum |
Density, X10, |
Tensile strength in bending, N/mm |
Hardness HRA not less than | |||
| ТН20 |
19 6681 |
R01-R10 (K10) |
79 |
- |
15,0 |
6,0 |
Of 5.5−6.0 |
1050 |
90,0 |
| КНТ16 |
19 6682 |
P10-P20 (K20) |
- |
74 |
19,5 |
6,5 |
Of 5.5−6.0 |
1200 |
89,0 |
Notes: 1. The main components provided for preparing a mixture of powders.
2. The brand ТН20 alloy contains niobium in an amount of 0.05−0.1% and allowed the tungsten content in a carbide component to 4.5%.
3. For the manufacture of the alloy grade used ТН20 titanium carbide composition TiC-TiC
.
3. The scope of the alloys specified in the recommended application.
4. Sampling — according to GOST 20559−75.
5. Strength under transverse bending is determined according to GOST 20019−74.
6. The hardness of materials by Rockwell is determined according to GOST 20017−74.
7. The density of the materials is determined according to GOST 20018−74.
APP
Recommended
APPLICATION FIELD OF TUNGSTEN CARBIDE
| Brand |
Application |
| For material processing by cutting | |
| ТН20 |
Finish and semi-finish turning for continuous cutting of carbon low-alloy structural steel, non-ferrous metals based on copper, low-alloyed Nickel alloys, gray iron and polyethylene. Finishing and semifinishing face milling of cast iron workpieces. |
| КНТ16 |
Medium to semi-rough turning for continuous cutting of carbon steel, low-alloyed and structural steels, non-ferrous metals based on copper, low-alloyed Nickel alloys, including when non-uniform cross-section slice, finishing to semi-rough milling of gray and ductile cast iron finish milling of carbon, low alloy and structural alloy steels. For bastrikova treatment of metals, the manufacture of wearing parts of machines and mechanisms, devices, fixtures, socket sealing rings for chemical pumps |
| ТН20, КНТ16 |
For nozzles of nozzles, fume matrices, mud pumps valves, rings and bushings plungers, parts, measuring equipment parts for bonding, rollers-plates, of measuring tools (end measures of length, gauges, brackets, etc.), personalki in the manufacture of rubber products |
