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GOST 21437-95

GOST 17261-2008 GOST 3778-98 GOST 3640-94 GOST 25284.8-95 GOST 25284.7-95 GOST 25284.6-95 GOST 25284.5-95 GOST 25284.4-95 GOST 25284.3-95 GOST 25284.2-95 GOST 25284.1-95 GOST 25284.0-95 GOST 25140-93 GOST 23957.2-2003 GOST 23957.1-2003 GOST 23328-95 GOST 22861-93 GOST 21438-95 GOST 21437-95 GOST 19424-97 GOST 15483.10-2004 GOST 1293.0-2006 GOST 1219.1-74 GOST 1219.3-74 GOST 21877.6-76 GOST 21877.0-76 GOST 9519.1-77 GOST 15483.1-78 GOST 15483.0-78 GOST 1293.0-83 GOST 1293.3-83 GOST 26880.1-86 GOST 1219.4-74 GOST 1219.8-74 GOST 1219.2-74 GOST 860-75 GOST 21877.3-76 GOST 21877.1-76 GOST 21877.9-76 GOST 21877.4-76 GOST 21877.7-76 GOST 21877.2-76 GOST 21877.10-76 GOST 21877.8-76 GOST 22518.2-77 GOST 22518.4-77 GOST 9519.2-77 GOST 22518.1-77 GOST 1293.6-78 GOST 15483.11-78 GOST 15483.8-78 GOST 15483.3-78 GOST 15483.6-78 GOST 19251.3-79 GOST 20580.8-80 GOST 20580.2-80 GOST 20580.3-80 GOST 1293.11-83 GOST 1293.1-83 GOST 27225-87 GOST 30608-98 GOST 19251.7-93 GOST P 51014-97 GOST 17261-77 GOST 22518.3-77 GOST 9519.3-77 GOST 8857-77 GOST 15483.4-78 GOST 19251.0-79 GOST 19251.5-79 GOST 19251.2-79 GOST 20580.1-80 GOST 20580.6-80 GOST 20580.7-80 GOST 20580.4-80 GOST 1292-81 GOST 9519.0-82 GOST 1293.10-83 GOST 1293.12-83 GOST 1293.5-83 GOST 1293.2-83 GOST 30082-93 GOST 1219.6-74 GOST 1219.0-74 GOST 1219.5-74 GOST 1219.7-74 GOST 21877.5-76 GOST 21877.11-76 GOST 15483.9-78 GOST 15483.7-78 GOST 15483.2-78 GOST 1293.9-78 GOST 15483.5-78 GOST 19251.1-79 GOST 19251.6-79 GOST 19251.4-79 GOST 20580.0-80 GOST 20580.5-80 GOST 1293.7-83 GOST 1293.13-83 GOST 1293.14-83 GOST 1293.4-83 GOST 26880.2-86 GOST 26958-86 GOST 1020-97 GOST 30609-98 GOST 1293.15-90 GOST 1209-90 GOST 1293.16-93 GOST 13348-74 GOST 1320-74 GOST P 52371-2005

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
rupture ГОСТ 21437-95 Сплавы цинковые антифрикционные. Марки, технические требования и методы испытаний, MPa (kgs/mmГОСТ 21437-95 Сплавы цинковые антифрикционные. Марки, технические требования и методы испытаний)

Elongation
ГОСТ 21437-95 Сплавы цинковые антифрикционные. Марки, технические требования и методы испытаний, %

Brinell hardness number
NV




Temporary resistance
rupture ГОСТ 21437-95 Сплавы цинковые антифрикционные. Марки, технические требования и методы испытаний, MPa (kgs/mmГОСТ 21437-95 Сплавы цинковые антифрикционные. Марки, технические требования и методы испытаний)

Elongation
ГОСТ 21437-95 Сплавы цинковые антифрикционные. Марки, технические требования и методы испытаний, %

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,
MPa (kgf/mmГОСТ 21437-95 Сплавы цинковые антифрикционные. Марки, технические требования и методы испытаний)

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