GOST 1060-83

• gost-1060-83.pdf (183.86 KiB)
  ГОСТ 1060-83

GOST 1060−83 seamless steel Tubes cold-drawn for shipbuilding. Specifications (with Change No. 1)

GOST 1060−83

Group В62

INTERSTATE STANDARD

SEAMLESS STEEL TUBES COLD DEFORMED
FOR SHIPBUILDING

Specifications

Cold-deformed seamless steel tubes for shipbuilding.
Specifications

ISS 23.040.10
OKP 13 4400, 5100 13

Date of introduction 1985−01−01

INFORMATION DATA

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

DEVELOPERS

E. A. Bliznyuki, V. P. Sokurenko, L. A. Kondratenko

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 17.12.83 N 6094

3. REPLACE GOST 1060−76

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

5. Limitation of actions taken by Protocol No. 4−93 of the Interstate Council for standardization, Metrology and certification (ICS 4−94)

6. EDITION with Change No. 1 approved in August 1989 (IUS 12−89)


This standard applies to steel cold drawn seamless pipes used in shipbuilding for boilers, superheaters and Neftepererabotka.

(Changed edition, Rev. N 1).

1. ASSORTMENT

1.1. The pipe dimensions shall be as specified in table.1.

Table 1

Notes:

1. Dimensions in brackets in the design of new equipment is not recommended.

2. At the request of the consumer tubes are manufactured with outer diameter from 16 to 60 mm with a wall thickness of from 1.6 to 4 mm according to GOST 8734.

3. In coordination with the consumer of a pipe made of an external diameter exceeding 60 mm.

1.2. The length of the pipe manufacture:

random length from 1,5 to 9 m;

measuring length within off-gage with maximum deviation in length +10 mm;

multiple lengths — within off-gage with an allowance for each cut is 5 mm and the limit deviation for the total length of +10 mm.

1.3. Pipe manufactured by outside diameter and wall thickness. Limit deviations from the sizes of pipes shall not exceed that specified in table.2.

Table 2

Dimensions, mm

1.1−1.3. (Changed edition, Rev. N 1).

1.4. The curvature of the pipe at any section of 1 m length should not exceed 1.5 mm.

Examples of symbols

Pipe outer diameter of 42 mm with a wall thickness of 3 mm random length:

Pipe 42x3 GOST 1060−83

The same lengths of 6000 mm:

Pipe 42х3х6000 GOST 1060−83

The same lengths of 6000 mm with the remainder (m):

Pipe 42х3х6000 m GOST 1060−83

The same length that are multiples of 3000 mm:

Pipe 42х3х3000 cu GOST 1060−83

2. TECHNICAL REQUIREMENTS

2.1. Pipe manufactured in accordance with the requirements of this standard and technical regulations approved in the prescribed manner.

2.2. Pipes made from steel grade 10 with the chemical composition according to GOST 1050.

2.3. Pipes must be thermally processed.

2.4. Mechanical properties of metal of pipes must be:

tensile strength  — not less than 343 N/mm(35 kgf/mm);

elongation not less than 28%.

At the customer’s request elongation should not be less than 30%.

2.5. On the outer and inner surfaces of pipes are not allowed slivers, flaws, cracks, holes-wdwy, sunsets and the remains of copper plating.

On the outer surface of the pipe allowed:

individual dents, risks, traces of removal of defects, if they do not take the thickness of the wall beyond the negative deviations;

the remains of slag on the pipes, not exposed to heat treatment in a protective atmosphere appropriate to the agreed standards;

the oxide film types of tint for pipes subjected to heat treatment in a protective atmosphere.

2.4, 2.5. (Changed edition, Rev. N 1).

2.6. Pipe shall be manufactured with a surface cleansed from oxides or after the heat treatment in a protective atmosphere.

2.7. Pipes must withstand ultrasonic defectoscopy across the surface. The equivalent of acceptable natural defects serves as an artificial risk, the depth of not more than 10% of the nominal value of wall thickness and a length of not more than 25 mm.

2.8. Pipe must withstand without the formation of cracks and tears:

flattening to obtain sludinajumi between the surfaces a distance equal to four thicknesses of the wall;

the distribution to increase an outer diameter of 15%;

bend in accordance with the requirements of GOST 3728 instead of flattening at the request of the consumer.

2.9. Tubes shall withstand hydraulic test pressure in accordance with the requirements of GOST 3845 with allowable stress equal to 40% of the temporary tear resistance for this grade of steel.

3. ACCEPTANCE RULES

3.1. Pipes take by the parties. The party should consist of pipes of the same size, one type of heat treatment, as customer’s request — one of melting and to be issued a document about the quality according to GOST 10692.

The number of tubes in the party — not more than 400 PCs.

3.2. Control surface dimensions, subjected to ultrasound control each pipe.

3.3. For quality control from the party taken:

tensile, bend and distribution — 2% of the pipes, but at least two pipes;

on flattening of 10% of the pipes, but not less than two pipes.

3.4. If unsatisfactory test results of at least one of the indicators it is carried out re-tests on twice the number of pipes selected from the same batch. The results of repeated tests apply to the entire party.

4. TEST METHODS

4.1. For quality control of each selected pipe cut one sample for each test.

4.2. Inspection of the pipe surface is carried out visually.

The presence of dross on the surface of the pipe, not subjected to heat treatment, shall be established according to standards agreed upon between manufacturer and user.

4.3. Control of the outer diameter and wall thickness is carried out by means of measurements with an error, installed GOST 8.051.

Length control is carried out measuring tape according to GOST 7502.

The curvature control is carried out according to GOST 26877.

4.2, 4.3. (Changed edition, Rev. N 1).

4.4. Test flattening is carried out according to GOST 8695.

4.5. Test distribution is carried out according to GOST 8694 on the mandrel with a taper of 6° or 30°.

In case of disagreement on the evaluation test is carried out on a mandrel with a taper of 6°.

4.6. The test bend is carried out according to GOST 3728.

4.7. When discovering a tapered samples of tears (mid), or other minor defects resulting from the disclosure of external defects due to the method of production and permitted by this standard, is allowed to re-test flattening of another sample from the same tube with the preliminary removal of the surface layer of the sample (inner and outer) to a depth of not more than 0.2 mm.

4.8. The tensile test is carried out according to GOST 10006 longitudinal in the form of a strip or segment of pipe sample.

The rate of deformation up to the yield strength should be not more than 10 mm/min, yield point is not more than 40 mm/min.

Allowed to control the mechanical properties by nondestructive methods.

In case of dispute, the test performed according to GOST 10006.

4.9. Test hydraulic pressure pipe is carried out according to GOST 3845. The ability of pipe to withstand hydraulic test pressure is provided by a conducting non-destructive testing.

4.10. Ultrasonic tube inspection is performed in accordance with trebovaniyami 17410 using test samples. Artificial external and internal risks in the test samples for sensitivity setting of ultrasonic equipment for the inspection of longitudinal defects should correspond to GOST 17410.

5. MARKING, PACKAGING, TRANSPORTATION AND STORAGE

5.1. Marking, packaging, transportation and storage — by GOST 10692.

5.1.1. Each tube with a diameter of 25 mm and above at a distance of not more than 1500 mm from the pipe end is marked with trademark of manufacturer, and batch number.

(Changed edition, Rev. N 1).

5.1.2. All pipes should be linked into transport packets according to normative-technical document, weighing up to 5000 kg.

5.2. Pipes should have a corrosion-resistant coating.

The term conservation protection to 6 months. At the request of the consumer supply pipe without anti-corrosion coating or with 01.01.91 with corrosion-resistant coating with a term of conservation protection for at least three years.

(Changed edition, Rev. N 1).