GOST 12247-80

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  ГОСТ 12247-80

GOST 12247−80 seamless steel Cylinders large volume of 31,4 and 39,2 MPa (320 and 400 kgf/sq cm). Specifications (with Amendments No. 1, 2)

GOST 12247−80

Group В66

INTERSTATE STANDARD
SEAMLESS STEEL CYLINDERS LARGE VOLUME FOR GASES AT 31,4 and 39,2 MPa (320 and 400 kgf/cm)
Specifications

Large seamless steel gas cylinders for operating pressure of 31,4 and 39,2 MPa (320 and 400 kgf/cm). Specifications

GST 14 1302

Date of introduction 1982−01−01

INFORMATION DATA

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

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 23.10.80 N 5147

3. REPLACE GOST 12247−66

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

The designation of the reference document referenced	Item number
GOST 9.032−74	2.15
GOST standard 9.402−80	2.15
GOST 1050−88	2.11
GOST 1497−84	4.2
GOST 2016−86	4.8
GOST 4543−71	2.9
GOST 9012−59	4.4
GOST 9150−81	2.8, 2.11
GOST 9399−81	4.8
GOST 9454−78	4.3
GOST 14192−96	5.5 and
GOST 15150−69	5.5
GOST 16093−81	2.8, 2.11
GOST 24705−81	2.8, 2.11

5. The expiration time limit is removed by the Resolution of Gosstandart of the USSR from 07.06.91 N 833

6. EDITION (October 2002) with Amendments No. 1, 2 approved in February 1987, June 1991 (ICS 12 to 86, 9−91), Amendment (ICS 8−2002)


This standard applies to cylinders of stainless steel for operating pressure of 31,4 and 39,2 MPa (320 and 400 kgf/cm) made from seamless pipe and is designed for storage and transportation of compressed and liquefied gases at ambient temperatures from minus 50 to plus 60 °C.

Requirements* product safety is set out in PP.1.2, 1.3, 2.4, 2.6−2.8, 4.1−4.4.

________________
The amendment is effective only on the territory of the Russian Federation.

(Changed edition, Rev. No. 1 Amendment).

1. BASIC PARAMETERS AND DIMENSIONS

1.1. Cylinders must be manufactured dvuhgolosyj in the following designs:

1 — with one neck with an internal thread, a threaded muted goujon (Fig.1);

2 with the inner thread (damn.2);

3 — with one neck with an internal thread, muffled by goujon, with the second neck with external threads and with flanges (Fig.3);

4 — with male threads and with flanges (Fig.4).

The customer is allowed to produce cylinders in versions 1 and 3 odnogolosyj with a spherical bottom, and in versions 3 and 4 without flanges or with flanges that come with the cylinders.

(Changed edition, Rev. N 2).

1.2. Main parameters and sizes of cylinders in versions 1−4 should match those in hell.1−4 and in table.1.

Damn.1

Damn.2

Damn.3

Damn.4

Table 1

The volume of cylinders , l	The outer diameter of the cylindrical part of cylinders , mm	The length of the body of cylinders , mm		The wall thickness of cylinders , mm		The mass of the cylinders , kg
at working pressure , MPa (kgf/cm)
31,4 (320)	39,2 (400)	31,4 (320)	39,2 (400)	31,4 (320)	39,2 (400)
80	325 377	1430 1180	1500 1240	13,8 16,0	16,9 19,6	180 220	240 260
100	1720 1400	1820 1470	220 250	180 310
130	2170 1730	2290 1820	280 300	340 380
160	2620 2060	2760 2160	340 360	430 450
200	3200 2500	3390 2620	400 440	520 540
250	377 426	3050 2500	3190 2600	16,0 18,0	19,6 22,1	530 540	660 670
320	426 465	3100 2700	3220 2800	18,0 19,7	22,1 24,1	670 700	820 870
400	465	3290	3400	19,7	24,1	840	1050
500	4000	4150	1020	1300
650	530	4140	4360	22,4	27,5	1280	1650
800	600	3980	4150	25,4	31,1	1660	2080
1000	4850	5050	2000	2530

Notes:

1. According to customer bottles of 80−320 l produce normal or reduced length. In the numerator the size and mass of cylinders of normal length, the denominator of the reduced length.

2. Length odnogolosyj cylinders may be less than about 80 mm for cylinders with a volume 80−250 l and about 100 mm for cylinders with a volume of 320−1000 L.

3. Cylinders with a volume of 500 l is manufactured under agreement between manufacturer and user.

4. Weight of cylinders is specified without the weight of flanges.


(Changed edition, Rev. N 1).

1.3. Limit deviations should not exceed specified: ±5% — by volume;

±1,75% of the outside diameter of the cylindrical part.

According to customer cylinders must be manufactured with extreme deviation in length ±2.5% instead of limitations.

1.4. According to customer cylinders must be manufactured with limitation by mass instead of volume limit. The mass of the cylinder to 1 liter actual volume shall not exceed nominal by more than 7%.

Example of designation of the balloon in the execution of 3 200 litres at a pressure of 31.4 MPa (320 kgf/cm) for air:

Cylinder for air 3−200−32 GOST 12247−80

However, in version 1, the limit mass for oxygen:

Air cylinders 1−200−32 M GOST 12247−80

Same, reduced in length, with the restriction on the length instead of the volume limit for nitrogen:

Cylinder nitrogen reduced length 1−200−32 L GOST 12247−80

(Changed edition, Rev. N 1).

2. TECHNICAL REQUIREMENTS

2.1. Cylinders must be manufactured in accordance with the requirements of this standard and the «Rules of arrangement and safe operation vessels working under pressure» approved by Gosgortekhnadzor of the USSR, working drawings, approved in the prescribed manner.

2.2. Cylinders must be manufactured from pipes that have passed the ultrasonic testing of the metal.

2.3. The cylinders shall be subjected to heat treatment — quenching and tempering.

2.4. The mechanical properties of the material of the heat-treated cylinders shall be not less than specified in table.2.

Table 2

Tensile strength N/mm(kgf/mm)	Yield strength , N/mm (kgf/mm)	Take tional elongation , %	Toughness KCU j/cm (kgf·m/cm)		Hardness Brinell
Not less than			when +20°C	when -50°C	Indentation diameter , mm	The hardness number of
883 (90)	687 (70)	12	49 (5)	29,4 (3)	3.3 V-3.7 V	HB 341 269…

Note. Impact strength at minus 50 °C determine the float for each size cylinders.


(Changed edition, Rev. N 1).

2.5. Ovality of cylinders should be within permissible deviations in outside diameter.

2.6. Of a mouth of cylinders with internal thread must be manufactured in accordance with the devil.5 and table.3.

Damn.5

Table 3

Dimensions in mm

The diameter of the cylinder
Not less than		Pred. off. ±0,5
325; 377	M60·3	90	40	75	62	5	5
426	The M85·3	125	60	100	87
465	135
530	The M110·3	150	70	125	113

The number of turns of thread with a full profile should be at least 10.

Beyond the minimum length of the threaded portion allowed the internal bore of the neck, not bringing the wall thickness beyond the minimum value.

2.7. Of a mouth of cylinders with external threaded flanges shall be manufactured in accordance with the devil.6 and table 4.

Damn.6

Table 4

Dimensions in mm

The diameter of the cylinder	Conditional passages		(PREV. off. +5)
(PREV. off. ±0,5)
325	70	M100·3	50	80	5	2,5
377; 426
465	100	М140·4	65	100	3,0
530	М155·4	70	120

2.8. Threaded neck and flange — according to GOST 9150 and GOST 24705 extreme deviations according to GOST 16093 8g and 7N, respectively.

Allowed visiblea and sorlandet thread not more than 1/5 of the total number of turns in the length of no more than 1/3 of the circumference for each revolution thwarted. On the sealing surface nicks and radial risks are not allowed.

(Changed edition, Rev. N 1).

2.9. The flanges to the cylinders must be manufactured from heat-treated blanks (forgings, stampings or rolled sections) in accordance with the devil.7 and table.5. Material flanges — steel grades 40X, or 30X according to GOST 4543.

Damn.7

Table 5

Dimensions in mm

Conditional passages		(PREV. off. on )		(PREV.off. no )			The number of holes
70	M100·3	225	170	50	2,5	M30	6
100	М140·4	300	235	65	3,0	M36	8
М155·4	70

The mechanical properties of flanges, the designated longitudinal samples, are given in table.6.

Table 6

Steel grade	Tensile strength , N/mm(kgf/mm)	Yield strength , N/mm(kgf/mm)	Elongation , %	Impact toughness KCV, j/cm(kgf·m/cm)
not less than
30S, 40X	618 (63)	392 (40)	15	59 (6)

(Changed edition, Rev. N 2).

2.10. To prevent loosening flanges should be welded to the neck from the side adjacent to the area of the cylinder, or secured with a pin.

2.11. Cylinders must be sealed. The neck of the container with a sealed screw goujon, should be welded by electric welding.

The diameter of the threaded holes for the goujon shall not exceed the diameter of the thread of the open neck. The goujon shall be made of steel grades 20 to 45 according to GOST 1050 with a height of not less than 25 mm.

Cylinders with a spherical bottom choke setting of goujon in the bottom. Instead of installing the goujon allowed razzenkovkoj bottoms with subsequent welding by electric welding.

Thread goujon — according to GOST 24705 and 9150. Limit deviation — not less than 8g GOST 16093.

(Changed edition, Rev. N 1, 2).

2.12. The outer and inner surfaces of the cylinders shall be without captivity, sinks, laps, cracks.

Elevation, enhancement, risks, and dents from scale or instrument, and other minor defects, including sealed and open lines on the inside of the necks and bottoms, should take the wall thickness of the cylinders for a minimum value specified in table.1.

2.13. The outer and inner surfaces of the cylinders must be pretreated with, or ottobatcher peskostruy.

Allowed scale, fused with the metal and cannot be cleaned and de-coring.

(Changed edition, Rev. N 2).

2.14. (Deleted, Rev. N 2).

2.15. The outer surface of the cylinders shall be painted with bitumen-oil varnish, oil, enamel, or nitro as per GOST 9.402 with the 4th degree of purification. Paint color is selected depending on fill gas according to table.7.

Table 7

The name of the gas	Painting of cylinders
Nitrogen	Black
Ammonia	Yellow
The crude argon	Black
Argon technical	Black
Argon clean	Grey
Acetylene	White
Butylene	Red
Neftegaz	Grey
Bhutan	Red
Hydrogen	Dark green
The air	Black
Helium	Brown
Nitrous oxide	Grey
Oxygen	Blue
Oxygen medical	Blue
Hydrogen sulfide	White
Sulfur dioxide	Black
Carbon dioxide	Black
Phosgene	Protective
Halons	Aluminum or light gray
Chlorine	Protective
Cyclopropane	Orange
Ethylene	Purple
All other combustible gases	Red
All other non-combustible gases	Black

Paint should match the 7-th class according to GOST 9.032.

According to customer cylinders may not be painted.

(Changed edition, Rev. N 1, 2).

2.16. Cylinders for oxygen and hydrogen, and at the request of the consumer and must be degreased.

The consumer must also degrease the cylinders before installing the valves.

2.17. Every container has a volume of 100 liters or more should be applied passport in the form prescribed by the Rules of Gosgortechnadzor.

3. ACCEPTANCE RULES

3.1. Each cylinder must be subjected to acceptance tests for compliance with PP.1.2−1.4, 2.4, 2.6−2.13, 2.15−2.17.

Notes:

1. Test of the cylinder material tensile and impact strength carried out on 2 samples from batch.

2. Cylinders with two open necks of pneumatic tests at the factory are not subjected to.

3.2. When unsatisfactory results of testing of samples for tensile or impact strength, a second test of twice the number of samples taken from the same tube section — «witness» by referring to tests that showed a low result.

Results are unsatisfactory re-testing cylinders subjected to repeated heat treatment, and then re-test the mechanical properties. Allowed not more than two reheat treatments. Additional leave is not considered a re-heat treatment.

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

3.3. The cylinders apply to the acceptance of batches with up to 30 pieces from one performance, one volume, of the same diameter and the same heat treatment.

4. TEST METHODS

4.1. Test of the cylinder material on tensile and impact bending (n.2.4) should be carried out on longitudinal specimens cut from pipe sections — «witness» the same trunks that made the cylinders and heat-treated together with spray.

(Changed edition, Rev. N 1).

4.2. Tensile test (clause 2.4) should be done on a short proportional specimens of type III according to GOST 1497.

(Changed edition, Rev. N 2).

4.3. Test the impact strength (p.2.4) should be carried out on samples of type I according to GOST 9454.

(Changed edition, Rev. N 1).

4.4. Quality control of heat treatment of cylinders (p.2.4) must be carried out by measuring the hardness of the cylinders.

The hardness of the surface of the cylinders measured on the Brinell hardness according to GOST 9012.

4.5. The strength of the cylinders is determined by the hydraulic pressure test and air tightness — performance of pneumatic tests in accordance with the requirements of «Rules of arrangement and safe operation vessels working under pressure» approved by Gosgortekhnadzor of the USSR. Duration of pressure test shall be not less than 120 min, the air at least 5 min.

(Changed edition, Rev. N 1).

4.6. (Deleted, Rev. N 1).

4.7. The quality of external and internal surfaces of cylinders, obvarki of goujon and welding bottoms (PP.2.12, 2.13) verify by external inspection.

4.8. The quality of the threads on the necks and flanges (PP.2.6−2.9) check the gauges according to GOST 2016. Flanges for cylinders (p.2.9) experience in accordance with the requirements of GOST 9399.

4.9. The check volume (p.1.3) of cylinders check cylinder filling water to the base of the neck with subsequent determination of the volume or mass of water.

5. MARKING, PACKAGING, TRANSPORTATION AND STORAGE

5.1. On the spherical part of the neck of each container shall be clearly embossed with the following information:

— trademark of the manufacturer;

— cylinder number according to the numbering system of the manufacturer;

— date (month and year) of fabrication (test);

— type of heat treatment — quenching and tempering ();

- the working pressure (P) and test products (P) in MPa

— the nominal volume of tank in litres;

— the actual weight of cylinder in kg up to 1 kg;

the mark in TCI;

— the designation of this standard.

The height of letters and numbers not less than 8 mm.

Notes:

1. By the customer’s order on the cylinders instead of the nominal volume must break out its actual value with an accuracy of 1 L.

2. The mass of the cylinder is specified without the mass of the flange.

5.2. The inner surface of the cylinders shall be protected from corrosion by filling the tank with volatile inhibitor.

The customer is allowed to fill the tank of volatile inhibitor.

5.3. The outer thread of a mouth of cylinders should be protected from damage metal or plastic rings. The openings of the necks of the cylinders with internal thread must be tightly closed with metal screw caps with rubber gaskets or plastic threaded plugs. The openings of the necks of the cylinders with external thread tightly cover with plastic cap.

5.4. Each batch must be accompanied by a quality document in the prescribed form stating:

— names of the manufacturer and his address;

the number of cylinders and their numbers;

— results of hydraulic and pneumatic tests;

the designation of the present standard.

5.5. Cylinders transporterowych by all kinds of transport in accordance with the applicable shipping Rules.

Conditions of transportation of the cylinders of the group G1 in accordance with GOST 15150.

(Changed edition, Rev. N 1).

5.5. Transport labeling, including basic, additional and informational inscriptions shall be marked in accordance with GOST 14192.

(Added, Rev. N 1).

5.6. Storage of cylinders in the group G1 GOST 15150.

6. MANUFACTURER’S WARRANTY

6.1. The manufacturer guarantees the compliance of the cylinders with the requirements of this standard if the conditions of operation, transportation and storage established by this standard and the «Rules of arrangement and safe operation vessels working under pressure».

6.2. Warranty period — 2.5 years from the date of entry of cylinders in operation.

(Changed edition, Rev. N 1).