GOST 1150-72

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  ГОСТ 1150-72

GOST 1150−72 boiler zinc Plates. Specifications (with Amendments No. 1, 2, adjusted)

GOST 1150−72

Group В53

STATE STANDARD OF THE USSR

BOILER ZINC PLATES

Specifications

Boiler zinc plates. Specifications

GST 18 3110

Date of introduction 1973−01−01

Promulgated by Decree of the State Committee of standards of the USSR Council of Ministers of 10 April 1972 N 721

Limitation of actions taken by Protocol No. 7−95 Interstate Council for standardization, Metrology and certification (ICS 11−95)

REPLACE GOST 1150−41

The change in N 2 GOST 1150−72 Taken by the Interstate Council for standardization, Metrology and certification (Protocol № 7 from 26.04.95)

Was the Technical Secretariat of MGS N 1621

The adoption voted:

REPRINT (October 1997) with Amendments No. 1, 2 approved in September 1985, January 1996 (IUS 12−85, 3−96)


AMENDED, published in the IUS N 3, 1998

An amendment made by the manufacturer of the database


This standard applies to zinc boiler plates, made by rolling and are used in the shipbuilding industry as protectors for the protection of boilers and other heating devices from corrosion.

(Changed edition, Rev. N 1).

1. ASSORTMENT

1.1. Dimensions of slabs and limit deviations thereon shall be as specified in table 1.

Table 1

mm

Note. Theoretical weight of 1 mof the plates given in the Appendix.


The symbol plates put down on the scheme

when the following abbreviations:

method of manufacture:

HR — G;

sectional shape:

rectangular — PR.

In place of missing data (precision and condition) put an «X».

Example legend plate, hot-rolled, rectangular, with a thickness of 25 mm, width 300 mm, length-450 mm zinc brand of C0:

Plate GPRH 25х300х450 C0 GOST 1150−72.

(Changed edition, Rev. N 1).

2. TECHNICAL REQUIREMENTS

2.1. Plates are made in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

Plates are made of zinc grades of C0 and C1 with the chemical composition according to GOST 3640−94.

2.2. The plate surface must be smooth and clean, free from contamination, hinder the inspection, no prisoner of cracks, cavities, delamination, nicks and foreign matter.

The surface defects are allowed if they are in the control sweep output thickness of the plate for maximum deviations.

2.3. Plates should be trimmed evenly and must not have burrs. Cut end Squareness, mm should take plate for limit deviations on width and length.

2.1−2.3. (Changed edition, Rev. N 1).

2.4. Plates should be flat. The deflection must not exceed:

2 mm — for plates with thickness up to 20 mm;

3 mm — for plates thicker than 20 mm.

(Changed edition, Rev. N 2).

3. ACCEPTANCE RULES

3.1. Plate take parties. The party must consist of plates of the same size, same brand zinc and be accompanied by a document about quality that contains:

trademark or a trademark and the name of the manufacturer;

the symbol plates;

batch number;

the weight of the party.

3.2. To check the chemical composition of the selected three plates from the party.

Allowed the manufacturer to test the chemical composition of samples from the molten metal.

3.1, 3.2. (Changed edition, Rev. N 1).

3.3. The appearance test is subjected to each plate.

Checking the deflection is subjected to 3 plates from the party.

To control the thickness of the slabs used single-stage normal sampling plan for the alternative characteristic in accordance with GOST 18242−72 with the acceptance level of defects is 4%. The selection of slabs in the sample is carried out «blindly» (by the greatest objectivity) according to GOST 18321−73.

If the quantity does not exceed three plates, checked each plate.

Select the number of plates is determined by the table.2.

Table 2

PCs

The number of controlled points on each selected plate is determined depending on the number of parcels with a length of 100 mm along the perimeter of the plate.

When the length of the perimeter is not a multiple of 100 mm, the end section of a length less than 100 mm is taken for one site.

Allowed the manufacturer if unsatisfactory result on one of the plates to control each plate.

Allowed on the factory control the thickness of the plates is carried out in the production process.

(Changed edition, Rev. N 2).

3.4. If unsatisfactory test results of chemical composition and deflection of them repeat tests are carried out at twice the sample taken from the same batch. The results of repeated tests apply to the entire party.

(Changed edition, Rev. N 1).

4. TEST METHODS

4.1. Inspection surface plates are produced without the use of magnifying devices.

(Changed edition, Rev. N 1).

4.2. The measurement of the thickness of the plates is done by a caliper according to GOST 166−89 at a distance of not less than 15 mm from edges and not less than 50 mm from the corner of the plate at three points.

Measurement of the width and length of the plates is done by measuring with a ruler according to GOST 427−75или caliper according to GOST 166−89.

Allowed the manufacturer to control the thickness of the plates in the manufacturing process by other means of measurement, to ensure the necessary accuracy.

(Changed edition, Rev. N 2).

4.3. The chemical composition of the plates is determined according to GOST 19251.0−79−19251.6 GOST-79.

Allowed the manufacturer to carry out determination of chemical composition by other methods of equal accuracy.

Sampling for the determination of chemical composition is carried out according to GOST 24231−80.

(Changed edition, Rev. N 1).

4.4. The measurement of the deflection plates is carried out according to GOST 26877−91.

(Changed edition, Rev. N 2).

5. PACKING, MARKING, TRANSPORTATION AND STORAGE

5.1. At the end of each of the plates or when transporting in crates at the end of the top plate do not flush with water or paint firmly glued on the label must be applied:

trademark or a trademark and the name of the manufacturer;

the symbol plates;

batch number;

stamp of technical control.

5.2. For rail transport, small or low-tonnage shipments plates should be Packed in tight wooden boxes types II-1, II-2, III-1, III-2 according to GOST 2991−85, or wooden boxes of the types 1−1, 1−2 according to GOST 10198−91.

When the transport carriages or other mode of transportation plate transporterowych without packaging or in boxes of the same type.

Dimensions of boxes — GOST 21140−88 or other regulatory-technical documentation.

The gross mass of the plates in the box should not exceed 80 kg, At mechanized loading and unloading, the gross mass of the box should be no more than 1250 kg.

5.3. Allowed the plates to be Packed in containers according to GOST 18477−79 or according to normative-technical documentation without packaging in boxes. The stones should be laid and reinforced so that they do not move during transportation.

5.1−5.3 (Revised edition, Edit. N 1).

5.4. The package needs to be formed into transport packets in accordance with the requirements of GOST 26663−85, weight and dimensions of packages — according to GOST 26663−85.

Packaging should be carried out on pallets according to GOST 9557−87 or without pallets using bars section not less than 50x50 mm and a length equal to the width of the package.

Transport packages must be wrapped in at least two areas or cross wire with a diameter of not less than 3 mm according to GOST 3282−74 or tape not less than 0,5h30 mm according to GOST 3560−73. The ends of the tying wire are held together by twisting at least five turns of tape to the castle.

(Changed edition, Rev. N 1, 2).

5.5. Packing plates for far North and remote areas shall be conducted in accordance with the requirements of GOST 15846−79 group of metals and metal products.

(Changed edition, Rev. N 1).

5.6. Transport marking — according to GOST 14192−96 with application of manipulation sign «Protect from moisture».

When transporting goods by air transport label must be wooden or metal and secured with two sides.

(Changed edition, Rev. N 1, 2).

5.7. In each container should be nested packing list indicating the information specified in clause 5.1, and the batch weight (net).

(Changed edition, Rev. N 1).

5.8. The transportation of slabs is produced by all kinds of transport in covered vehicles in accordance with cargo carriage regulations applicable to transport of this species.

Under specified storage conditions consumer properties of the plates during storage is not changed.

(Changed edition, Rev. N 1, 2).

5.9. Plates stored in covered premises.

When storing plates should be protected from moisture, mechanical damage and active chemical reagents.

(Changed edition, Rev. N 1).

APPLICATION (reference). Theoretical weight of 1 and (2) plates

APP
Reference

Theoretical weight of 1 mplates

Note. Weight of 1 mof plates calculated at the density of zinc is equal to 7.2 g/cm.


APPLICATION (introduced later. Izm. N 2).

The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
M.: IPK Publishing house of standards, 1998

Revision of the document including
changes and amendments prepared
JSC «Kodeks»