Alloy ТН20

Designation

Name The value
Designation GOST Cyrillic ТН20
Designation GOST Latin TH20
Transliteration TN20
By chemical elements TeNi20

Description

Alloy ТН20 used: for the manufacture of a cutting tool (for finishing and semi-finishing turning operations with continuous cutting carbon low-alloy structural steel, non-ferrous metals based on copper, low-alloyed Nickel alloys, gray iron and polyethylene, finish and semi-finish face milling of cast iron workpieces); the manufacture of wear-resistant parts (blast 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).

Note

The sintered hard alloy based on titanium carbide.

Standards

Name Code Standards
Hard alloys, ceramic-metal products and metal powder В56 GOST 26530-85

Chemical composition

Standard Ni Mo Nb
GOST 26530-85 15 6 0.05-0.1
The basis is titanium carbide.
In accordance with GOST 26530-85 the composition is given for a hard alloy of grade TN20. The content of titanium carbide in the alloy should be 79.00%. The content of the main components in the mixture of the initial powders is given without taking into account impurities. The contents of the main components are indicated for the preparation of a powder mixture. To produce the alloy, titanium carbide TiC 0.85 -TiC 094 is used . In the alloy, the content of tungsten in the carbide component is allowed up to 4.50%.

Mechanical properties

σU, MPa HRB
The solid sintered alloy according to GOST 26530-85. The graph shows the HRB hardness value HRА
≥1050 ≥90

Description mechanical marks

Name Description
σU Limit short-term strength
HRB Rockwell hardness (indenter steel, spherical)

Physical characteristics

Temperature r, kg/m3
20 5500-6000

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity