GOST 3882-74

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  ГОСТ 3882-74

GOST 3882−74 (ISO 513−75) sintered hard Alloys. Stamps (with Changes 1−6 N, with the Amendment)

GOST 3882−74
(ISO 513−75)

Group 56

INTERSTATE STANDARD

SINTERED HARD ALLOYS

Brand

Sintered hard alloys. Types

OKP 19 6500, 6600 19*
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* See notes of FGUP «STANDARTINFORM»

Date of introduction 1976−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of nonferrous metallurgy of the USSR

DEVELOPERS

N.Kudrya, A. A. Zaluzhny, V. I. Tretyakov

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 15.08.74 N 1993

3. REPLACE GOST 3882−61

4. The standard complies ST SEV 1251−78, ST SEV 5015−85, ISO 513−75* part of the classification grades of hard alloys
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* Access to international and foreign documents can be obtained by clicking on the link to the site shop.cntd.ru here and hereinafter. — Note the manufacturer’s database.

5. Standard uniform with OBD 10613−76

6. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

7. Limitation of actions taken by Protocol No. 5−94 of the Interstate Council for standardization, Metrology and certification (ICS 11−12−94)

8. REVISED (June 1998), with Changes N 1, 2, 3, 4, 5, 6, approved in November 1978, December 1981, December 1983, December 1984, March 1986, July 1990 (IUS 12−78, 3−81, 3−84, 3−85, 8−86, 10−90)

Revised (as of June 2008)


AMENDED, published in the IUS N 10, 2002

An amendment made by the manufacturer of the database

1. This standard applies to solid sintered alloys for the manufacture of cutting and mining tools, as well as for wear parts and for other purposes.

(Changed edition, Rev. N 2, 5, 6).

2*. Group, stamps, OKP codes, chemical composition and physico-mechanical properties of hard alloys shall be as specified in the table.
________________
* See notes of FGUP «STANDARTINFORM"

(Changed edition, Rev. N 1, 3, 4, 6).

(Amendment. ICS N 10−2002).

3. The scope of application of rigid alloys provided in Appendix 1.

4. Classification of insert grades for machining in accordance with the international standard ISO 513 and ST SEV 5015 given in Appendix 2.

Group of application of hard alloys for mining tools identified in accordance with ST SEV 1251 and is given in Appendix 3. Designation of grades according to national standards is given in Annex 4.

(Changed edition, Rev. N 2, 3, 5).

ANNEX 1
Recommended

THE SCOPE OF APPLICATION OF RIGID ALLOYS

APPENDIX 1. (Changed edition, Rev. N 1, 6).

ANNEX 2 (mandatory). Compliance grades of hard alloys international classification

ANNEX 2
Mandatory

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* Adverse working conditions should consider working with a variable depth of cut, with intermittent flow, shocks, vibrations, presence of peel foundry and abrasive inclusions in the workpiece material.


Depending on the workpiece material and the type of a removed shaving sintered hard alloys are divided into three main groups of cutting: R, M, and K.

Depending on the types and modes of machining the main group of cut are divided into groups of applications in accordance with Annex 2.

Group applications are identified by the letter of the main group of cut and the numerical index, which characterizes the change of processing mode and cutting properties of hard alloy.

The higher the index number in the designation of the group of application, the lower the wear resistance of the hard alloy and the permissible cutting speed, but higher strength hard alloy and the permissible feed and depth of cut during machining.

Other than those stated in this standard groups the application is allowed to additionally install a maximum of one intermediate group of applications, a numeric index, which should be intermediate between two adjacent groups of applications, e.g. K15 (between K10 and K20).

Application group R01 may be subdivided using the following notation: R01.1; R01.2 and R01.3.

The introduction of intermediate groups use is possible only in the case if the solid alloy is significantly different wear resistance and strength of alloys that belong to neighboring groups of applications.

Designation of insert grades should not coincide with the designation of the main group of cut and group use.

To the designation of the group of application of rigid alloys coated is added letter «s», for example, Р30С; К20С.

Information about the membership application insert grades established in the standards of countries — members of CMEA, is given in Appendix 5.

APPENDIX 2. (Changed edition, Rev. N 5).

ANNEX 3 (required)

APPENDIX 3
Mandatory

APPENDIX 3. (Changed edition, Rev. N 5).

ANNEX 4 (informative)

ANNEX 4
Reference

ANNEX 4. (Added, Rev. N 2).

ANNEX 5 (reference). MARKING GRADES OF SOLID SINTERED ALLOYS, ESTABLISHED IN THE STANDARDS OF MEMBER COUNTRIES OF THE CMEA, IN ACCORDANCE WITH THE GROUPS OF APPLICATION

ANNEX 5
Reference

ANNEX 6. (Changed edition, Rev. N 6).

NOTES OF FGUP «STANDARTINFORM»

1 On the first page to Supplement code: ISS 77.160 (index «National standards», 2008).

2 In the information index «National standards» N 10−2002 published amendment

to GOST 3882−74 sintered hard Alloys. Stamps (see Reprint, June 1998, amended N 1−6)