GOST 18175-78

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  ГОСТ 18175-78

GOST 18175−78 of Bronze without tin pressure treated. Stamps (with Amendments No. 1, 2)

GOST 18175−78
Group W51

INTERSTATE STANDARD

BRONZE WITHOUT TIN PRESSURE TREATED
Brand

Tin-free pressure-worked bronzes. Grades.

ISS 77.120.30
GST 17 3610

Date of introduction 1979−01−01

INFORMATION DATA

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

2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from 03.02.78 N 365

3. REPLACE GOST 18175−72

4. The standard complies ST SEV 377−76 and sets additional requirements to the brand Brazh9−4 in terms of the contents of lead and phosphorus, as well as establishes the brand Bramc10−2, Brbnt1, 9mg, Brkn1−3, Brmc5, Brazhnmc9−4-4−1, Brmg0,3 and complies ST SEV 731−77 and sets additional requirements to the mass fraction of the amount of impurities in the Marche Brkd1

5. Limitation of actions taken by Protocol No. 3−93 Interstate Council for standardization, Metrology and certification (I & C N 5−6-93)

6. REISSUE with Amendments No. 1, 2 approved in March 1980., April 1988. (ICS 5−80, 7−88)

1. This standard applies to bronze without tin pressure treated, intended for the manufacture of blanks and semi-finished products.

Information on compliance with the requirements of this standard and the CMEA standards are given in Appendix 1A.

(Changed edition, Rev. N 1).

2. The chemical composition of the alloys shall conform to the requirements specified in table.1 and 2.

(Changed edition, Rev. N 1, 2).

Table 1

Extension table 1

Notes:

1. In bronze stamps Bra5, used for the production of condenser tubes, is allowed the mass fraction of arsenic up to 0.4%.

2. In bronze brand Brazhn10−4-4 mass fraction of aluminium is allowed to 11.5%, while the mass fraction of iron and Nickel should be not less than 4% each.

3. In bronze brand Brkmc3−1, in agreement with the consumer allowed up to 2% of iron, without regard to the total amount of impurities.

4. By agreement between manufacturer and consumer can be normalized:

a) the content of impurities of arsenic and antimony in the bronze stamps Bra5, Bra7, Bramc9−2, Bramc10−2, Brazh9−4, Brazhmc10−3-1,5, Brazhn10−4-4, Brazhnmc9−4-4−1;

b) the content of impurities of arsenic, antimony and phosphorus in the bronze brands Brkmc3−1 and Brkn1−3.

5. In the bronze stamps Bra5, Bra7, Bramc9−2, Bramc10−2, Bra-9−4, Brazhmc10−3-1,5, Brmc5 mass fraction of Nickel is permitted up to 0.5% without regard to the total amount of impurities.

Table 2

Notes:

1. The mass fraction of oxygen in the bronze Brsr0,1 should not exceed 0,06%.

2. The alloy grade CuCr1 permitted due to the additional alloying components copper, the amount of which shall not exceed 0.3%.

3. Impurities, which are not determined and are not listed in the table below, take into account in the total amount of impurities.
_______________
* Consistent with the original. — Note the CODE.

4. Characteristics and purpose of bronze without tin pressure treated are listed in Appendix 1.

5. The types of semi-finished products listed in Appendix 2.

ANNEX 1a
Reference

Information about accordance GOST 18175−78 and ST SEV 377−76

Information about accordance GOST 18175−78 and ST SEV 731−77

ANNEX 1A. (Added, Rev. N 1).

ANNEX 1 (recommended). Typical properties and approximate appointment bronze without tin pressure treated

ANNEX 1
Recommended

APPENDIX 1. (Changed edition, Rev. N 1, 2)

ANNEX 2 (informative). The types of semi-finished products

ANNEX 2
Reference

Note. The symbol «x» means the use of stamps for the manufacture of these products.


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