GOST 21437-95
GOST 21437−95 zinc antifriction Alloys. Marks, technical requirements and test methods
GOST 21437−95
Group W51
INTERSTATE STANDARD
ZINC ANTIFRICTION ALLOYS
Marks, technical requirements and test methods
Zinc antifriction alloys. Marks, technical requirements and test methods
ISS 77.120.60
GST 17 2140
Date of introduction 1997−01−01
Preface
1 DEVELOPED by the Donetsk state Institute of non-ferrous metals (Danism), MTK 107
SUBMITTED to the State Committee of Ukraine for standardization, Metrology and certification
2 ADOPTED by the Interstate Council for standardization, Metrology and certification (Protocol No. 7 of April 26, 1995)
The adoption voted:
| The name of the state |
The name of the national authority for standardization |
| The Republic Of Azerbaijan |
Azgosstandart |
| The Republic Of Armenia |
Armastajad |
| The Republic Of Belarus |
Gosstandart Of The Republic Of Belarus |
| The Republic Of Kazakhstan |
Gosstandart Of The Republic Of Kazakhstan |
| The Republic Of Moldova |
Moldovastandart |
| Russian Federation |
Gosstandart Of Russia |
| Turkmenistan |
Glavgosekspertiza «Turkmenstandartlary" |
| The Republic Of Uzbekistan |
Standards |
| Ukraine |
Gosstandart Of Ukraine |
3 Decree of the Russian Federation Committee on standardization, Metrology and certification dated June 19, 1996 N 399 interstate standard GOST 21437−95 introduced directly as state standard of the Russian Federation from January 1, 1997
4 REPLACE GOST 21437−75
5 REISSUE. June 2011
1 Scope
This standard applies to zinc antifriction alloys in castings manufactured for the needs of the economy and exports.
The requirements of this standard are mandatory.
2 Normative references
The present standard features references to the following standards:
GOST 1497−84 (ISO 6892−84) Metals. Test methods tensile
GOST 9012−59 (ISO 410−82, ISO 6506−81) Metals. Method of measuring hardness Brinell hardness
GOST 23328−95 zinc Alloys. Methods of spectral analysis
GOST 25284.0−95 Alloy zinc. General requirements for methods of analysis
GOST 25284.1−95 Alloy zinc. Methods for determination of aluminium
GOST 25284.2−95 Alloy zinc. Methods for determination of copper
GOST 25284.3−95 Alloy zinc. Methods for determination of magnesium
GOST 25284.4−95 Alloy zinc. Methods for determination of lead
GOST 25284.5−95 Alloy zinc. Methods for determination of cadmium
GOST 25284.6−95 Alloy zinc. Methods of iron determination
GOST 25284.7−95 Alloy zinc. Method for determination of tin
GOST 25284.8−95 Alloy zinc. Method for determination of silicon
3 Stamps
3.1 Brand and chemical composition of the alloys shall conform to those given in table 1.
Table 1
| Grade | Mass fraction, % | |||||||||
| the main components |
impurity, not more than | |||||||||
| aluminum | copper |
magnesium |
zinc |
lead | iron | tin | cadmium | silicon | All impurities | |
| TSAM 9−1,5 L TSAM 9−1,5 |
9,0−11,0 | 1,0−2,0 | 0,03−0,06 | Basis | 0,03 | 0,15 | 0,01 | 0,02 | 0,10 | 0,35 |
| CHAM 10−5L TSAM 10−5 |
9,0−12,0 | 4,0−5,5 | 0,03−0,06 | The same | 0,03 | 0,15 | 0,01 | 0,02 | 0,10 | 0,35 |
4 Technical requirements
4.1 Alloys manufactured in accordance with the requirements of this standard technological instruction, duly approved.
4.2 Mechanical properties of the alloys shall conform to the requirements specified in table 2.
Table 2
| Grade | Cast alloys |
Grade | Alloys pressure treated | ||||
Temporary resistance |
Elongation |
Brinell hardness number NV |
Temporary resistance |
Elongation |
Brinell hardness number NV | ||
| Not less than |
Not less than | ||||||
| TSAM 9−1,5 L |
245 (25) |
1,0 |
95 |
TSAM 9−1,5 |
294 (30) |
10,0 |
85 |
| CHAM 10−5L |
245 (25) |
0,4 |
100 | TSAM 10−5 |
343 (35) |
4,0 |
90 |
4.3 Approximate the purpose of zinc antifriction alloys and operating conditions of the products given in Appendix A.
5 test Methods
5.1 Chemical composition of alloys determined according to GOST 23328, GOST 25284.0-GOST 25284.8. Allowed to determine the chemical composition by other methods of equal accuracy standard.
If there is disagreement in the assessment of the chemical composition analysis is carried out according to GOST 23328, GOST 25284.0-GOST 25284.8.
5.2 determination of the mechanical properties of the alloys under tension is carried out according to GOST 1497.
Samples for tensile tests on alloys processed by pressure, should be cut along the direction of rolling.
Testing of casting alloys is carried out on separately cast samples.
5.3 hardness test should be carried out according to GOST 9012.
Annex a (recommended). An exemplary purpose of zinc antifriction alloys and operating conditions of the products
Appendix A
(recommended)
Table A. 1 — Exemplary purpose of zinc antifriction alloys and operating conditions of the products
| Grade | Approximate appointment of alloy |
The condition of the products | ||
Specific pressure, |
Sliding speed, m/s |
Temperature, °C | ||
| No more | ||||
| TSAM 9−1,5 L |
For casting monometallic liners, bushings, slides, etc. |
9,8 (100) |
8 |
80 |
| For obtaining bimetallic products with a metal frame for molding |
19,6 (200) |
10 |
100 | |
| TSAM 9−1,5 |
To obtain a bimetallic strip of steel and aluminum by rolling and subsequent punching of the ear |
24,5 (250) |
15 |
100 |
| CHAM 10−5L |
For casting of bearings and bushings for different units |
9,8 (100) |
8 |
80 |
| TSAM 10−5 |
To receive a distribution of bands for slideways of machine tools and other products |
19,6 (200) |
8 |
80 |
