GOST 1208-90

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  ГОСТ 1208-90

GOST 1208−90 pressed bronze Tubes. Specifications

GOST 1208−90

Group В64

INTERSTATE STANDARD

PRESSED BRONZE TUBES

Specifications

Pressed bronze tubes. Specifications

ISS 23.040.15
GST 18 4650

Date of introduction 1991−01−01

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 on management of quality and standards from 21.03.90 N 474

3. REPLACE GOST 1208−73

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

The designation of the reference document referenced	Item number
GOST 166−89	3.2
GOST 427−75	3.2
GOST 3282−74	1.5.1
GOST 3560−73	1.5.1
GOST 7502−98	3.2
GOST 7566−94	1.5.1
GOST 9012−59	3.6
GOST 9557−87	1.5.1
GOST 10006−80	3.5
GOST 10692−80	1.5.1
GOST 14192−96	1.4.2
GOST 15027.1−77 — GOST 15027.14−77	3.7
GOST 15846−2002	1.5.2
GOST 18175−78	1.1; 2.4
GOST 19041−85	1.5.1
GOST 20068.1−79 — GOST 20068.3−79	3.7
GOST 21650−76	1.5.1
GOST 24047−80	3.5
GOST 24231−80	3.7
GOST 24597−81	1.5.1
GOST 26663−85	1.5 1
GOST 26877−91	3.3

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

6. REPRINTING. October 2003


This standard applies to extruded tubes made of bronze marks, Brams 10−3-1,5 and Brain 10−4-4 used for the manufacture of various parts.

1. TECHNICAL REQUIREMENTS

1.1. Pipe manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner, of bronze marks, Brams 10−3-1,5 and Brain 10−4-4 with the chemical composition according to GOST 18175.

1.2. Basic parameters and dimensions

1.2.1. Outer diameter, wall thickness and limit deviation should conform to the requirements specified in table.1.

Table 1

mm
The outer diameter		Wall thickness
But- min.	Pred. off.	5,00± ±0,5	7,5± ±0,75	8,5± ±1,0	10,0± ±1,0	11,0± ±1,1	12,5± ±1,2	15,0± ±1,4	17,5± ±1,6	20,0± ±1,8	22,5± ±1,8	25,0± ±2,0	27,5± ±2,2	30,0± ±2,4	32,5± ±2,5	35,0± ±2,8	37,5± ±3,0	40,0± ±3,2	42,5± ±3,4	50,0± ±4,0	60,0± ±5,0
42	±0,3	-	-	X	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
45	±0,4	-	X	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50	±0,5	X	X	-	X	X	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
55	±0,6	X	X	-	X	-	X	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Fifty seven	-	-	X	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
60	X	X	-	X	-	X	X	-	-	-	-	-	-	-	-	-	-	-	-	-
65	±0,7	-	X	-	X	-	X	-	X	-	-	-	-	-	-	-	-	-	-	-	-
70	X	X	-	X	-	X	X	X	-	-	-	-	-	-	-	-	-	-	-	-
75	±0,8	-	X	-	X	-	X	X	X	-	-	-	-	-	-	-	-	-	-	-	-
80	-	X	-	X	-	X	X	X	X	-	X	-	-	-	-	-	-	-	-	-
85	±0,9	-	X	-	X	-	X	X	X	X	-	-	-	-	-	-	-	-	-	-	-
90	-	X	-	X	-	X	X	X	X	X	X	-	-	-	-	-	-	-	-	-
95	±1,0	-	X	-	X	-	X	X	X	X	X	X	-	-	-	-	-	-	-	-	-
100	-	X	-	X	-	X	X	X	X	X	X	-	X	-	-	-	-	-	-	-
105	-	-	-	X	-	X	X	X	X	X	X	-	X	-	-	-	-	-	-	-
110	±1,2	-	-	-	X	-	X	X	X	X	X	X	-	X	-	-	-	-	-	-	-
115	-	-	-	X	-	X	X	X	X	X	X	-	X	X	-	-	-	-	-	-
120	-	-	-	-	-	X	X	X	X	X	X	X	X	X	-	X	-	-	-	-
125	±1,3	-	-	-	-	-	X	X	X	X	X	X	-	X	X	X	-	-	-	-	-
130	-	-	-	-	-	-	X	X	X	X	X	-	X	X	-	-	-	-	-	-
135	±1,4	-	-	-	-	-	X	X	X	X	X	X	-	X	X	X	X	-	-	-	-
140	-	-	-	-	-	-	X	X	X	X	-	X	X	-	-	-	-	-	-	-
155	±1,6	-	-	-	-	-	X	X	X	X	X	-	-	-	X	-	-	X	-	-	-
160	-	-	-	-	-	-	X	X	X	-	X	-	X	-	-	-	-	X	-	-
165	±1,7	-	-	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-
170	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-	-	-
175	±1,8	-	-	-	-	-	X	X	X	-	X	-	-	-	X	-	X	-	-	X	-
180	±1,9	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	X
190	-	-	-	-	-	-	-	-	X	-	X	-	X	-	-	-	X	-	-	-
195	±2,0	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-	-	-
200	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-	-	-	-
205	±2,1	-	-	-	-	-	-	X	-	-	X	-	-	-	X	-	X	-	X	X	X
210	-	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-	-
220	±2,2	-	-	-	-	-	-	-	-	-	-	-	-	X	-	X	-	-	-	X	-
225	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-	-	-
235	±2,5	-	-	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-
240	-	-	-	-	-	-	X	-	-	-	-	-	X	-	X	-	-	-	-	-
250	-	-	-	-	-	-	-	-	-	-	-	-	X	-	X	-	-	-	X	-
260	±2,8	-	-	-	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-
265	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-	-	-	-	-	-
280	+5,0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	X	-	-	-	-	-
-2,5

Notes:

1. The symbol «X» means that pipes of this size are prepared.

2. Theoretical weight of 1 m of pipes are given in appendices 1 and 2.

3. Pipe with a diameter of 280 mm are made with wall thickness of 35 mm and the limit deviation for the wall thickness of ±4 mm.

1.2.2. Length of pipes is specified in table.2.

Table 2

Grade of bronze	The size of the pipes, mm		Random length pipe, m
The outer diameter	Wall thickness
Brain	From 42 to 150 incl.	From 5 to 20 incl.	From 0.5 to 4
10−4-4	«42» 150 «	SV. 20	«0,5» 2,5
SV. 150 «220 «	From 5 to 60 incl.	«0,5» 2
«220	«5» 60 «	«0,5» 1,5
Brams	From 42 to 150 incl.	From 5 to 60 incl.	«0,7» 6
10−3-1,5	SV. 150	«5» 60 «	«0,5» 3

The legend of pipes are placed according to the scheme:

when the following abbreviations:

method of manufacture:	extruded — G
sectional shape:	round — CU
length:	random — ND
dimensional — CD
special conditions: pipe for manufacturing separators of rolling bearings	-

Examples of symbols of pipes:

Pipe an outer diameter of 65 mm with a wall thickness of 7.5 mm, length 3000 mm bronze brand Brain 10−4-4:

Pipe HCRHH 65х7,5х3000 Brain 10−4-4 GOST 1208−90

Pipe outer diameter 205 mm with a wall thickness of 22.5 mm, random length bronze brand Brams 10−3-1,5 for the manufacture of separators of roller bearings:

Pipe HCRHH 205х22,5 ND, Brams 10−3-1,5 GOST 1208−90

1.3. Features

1.3.1. Basic version

1.3.1.1. The outer and inner surfaces of the pipes should be free from contamination, hinder the inspection, without bowls, cracks, shells, delamination and blistering.

Allowed individual surface defects, dents, small risks and signs of Stripping of local defects, if they do not take the pipe at reference sweep for tolerances for dimensions.

Allowed on the surface of the pipe koltsevatost and color tint.

1.3.1.2. Metal pipes must be free of internal defects such as non-metallic inclusions, cavities, press utain, delaminations, and other defects.

1.3.1.3. The pipes must be clipped and should not have significant burrs.

Cut end Squareness, mm shall not exceed in millimeters:

2 — for pipes with external diameter up to 50 mm;

4	«	«	«	«	over 50 to 100 mm;
5	«	«	«	«	over 100 to 170 mm;
7	«	«	«	«	St. 170 mm.

1.3.1.4. Ovality and raznoshennoy should take the pipe dimensions limit deviations for outer diameter and wall thickness.

1.3.1.5. Curvature for 1 m pipe length should not exceed specified in table.3.

Table 3

mm
The outer diameter	Curvature of 1 m length, no more
Up to 60 incl.	3
SV. 60 to 80 incl.	4
«80» 150 «	5
«150	15

1.3.1.6. Mechanical properties of pipes shall conform to the requirements specified in table.4.

Table 4

Grade of bronze	The outer diameter of pipes, mm	Temporary resistance , MPa (kgf/mm)	Elongation after rupture , %	Hardness Brinell, HB kgf/mm
not less than
Brams 10−3-1,5	From 42 to 80 incl.	590 (60)	12	129−200
«85» 280 «	540 (55)	12	129−200
Brain 10−4-4	From 42 to 280 incl.	640 (65)	5	170−220

For the manufacture of separators of rolling bearings pipe bronze brand Brams 10−3-1,5 should have a tensile strength of at least 590 (60) MPa (kgf/mm), the elongation after rupture of at least 12% hardness, HB, 129−171 kgf/mm.

1.3.2. Performance at the customer’s request

1.3.2.1. Pipe outer diameter of 100 mm are made from bronze brand Brams 10−3-1,5 with a wall thickness of 6.5 mm with limit deviation of wall thickness of ±0.75 mm.

1.3.2.2. Curvature for 1 m of length shall not exceed 3 mm for pipes with outer diameter up to 80 mm inclusive.

1.3.3. Execution in coordination with the consumer

1.3.3.1. Pipes can be made of intermediate sizes for the external diameter and wall thickness limit deviation on them for the next larger size given in table.1.

1.3.3.2. Pipes can be manufactured with a wall thickness of 5 mm with a tolerance of plus 0.5 to minus 0.75 mm and with a wall thickness of 7.5 mm with a tolerance of ±1.0 mm.

1.3.3.3. Non-standard pipe can be made longer than indicated in the table.2. While cut end Squareness, mm, and the curvature of tubes are established by agreement between manufacturer and consumer.

1.3.3.4. Pipes can be made exact or multiple lengths with extreme deviations in length in millimeters:

+10 — for pipes with external diameter up to 50 mm incl.;

+15	«	«	«	«	St. 50 to 150 mm incl.;
+24	»	»	»	»	St. 150 mm.

1.3.3.5. Pipes can be manufactured with an increased upper limit of hardness, and for pipes made of bronze brand Brams 10−3-1,5 outer diameter from 42 to 80 mm, inclusive, temporary resistance can be reduced to 540 (55) MPa (kgf/mm) provided that the elongation after rupture is not less than 15%.

1.4. Marking

1.4.1. On the inner surface of each tube should be affixed label or on the outer surface applied with indelible paint inscription stating:

the trademark or name and trademark of manufacturer;

the legend of pipes or brand of bronze, pipe sizes, designations of this standard;

batch number;

stamp of technical control rooms or technical controller.

Allowed for marking pipes to use the following abbreviated letter designations brands of bronze:

grade of bronze	the symbol
Brams, 10−3-1,5	Warhead
Brain 10−4-4	Bn

1.4.2. Transport marking under GOST 14192.

During transportation of the cargo packages, for each package shall be affixed with wire plywood or metal label.

1.5. Packaging

1.5.1. The tubes are not Packed.

The cargo space is enlarged in the transport packages weighing up to 1250 kg. overall dimensions of packages — according to GOST 7566, GOST 10692, GOST 19041 and GOST 24597, GOST 26663.

Fastening means in the transport packets according to GOST 21650.

The packaging of pipes is carried out on pallets according to GOST 9557 or using bars with a diameter of at least 50x50 mm with strapping not less than two places with a wire diameter of at least 3 mm two turns according to GOST 3282 or tape not less than 0,3х30 mm according to GOST 3560. The wire ends are connected by twisting at least five turns of tape to the castle.

1.5.2. Packaging of tubes in the far North regions and equated areas — according to GOST 15846.

2. ACCEPTANCE

2.1. Pipes take by the parties. The party should consist of pipes of the same brand of bronze, one size shall be furnished in one document about quality that contains:

trademark or the name and trademark of manufacturer;

the symbol of the pipes;

the results of the tests (at the request of the consumer);

batch number;

the weight of the batch.

Allowed to issue a single document the quality of several batches of pipes of the same size and the same brand of bronze shipped at the same time to the same consumer.

The weight of the batch should not exceed 5,000 kg.

2.2. The control of dimensions, examination of external and internal surfaces and check for internal defects subjected to each pipe of the party.

2.3. To check the mechanical properties of the party taken to determine the strength and relative elongation after rupture of two pipes; hardness Brinell — five pipes.

In the control of mechanical properties is carried out tensile test (tensile strength and elongation after fracture) or hardness.

At the request of the consumer, conduct the tensile test and hardness. Tubes for the manufacture of separators of rolling bearings, experience tensile and hardness.

2.4. To check the chemical composition of the pipe selected two pipes from the party. Allowed on the factory sampling to conduct molten metal from each heat.

Allowed the factory to control the contents of arsenic, antimony, silicon and phosphorus periodically, once in 3 months subject to the compliance of their content with the requirements of GOST 18175.

2.5. If unsatisfactory test results of at least one indicator thereon, a second test of the doubled sample taken from the same batch.

The results of repeated tests apply to the entire party.

3. CONTROL METHODS

3.1. Control outer surface of the pipe is carried out by inspection without the use of magnifying devices.

The control of internal surface of pipes is carried out the visual display of the lighted screen.

3.2. Measurement of outer diameter and wall thickness of pipes is carried out with a Vernier caliper according to GOST 166.

Check the length of the pipes is carried out metal measuring tape according to GOST 7502 or metal ruler according to GOST 427.

3.3. Cosine of the cut, the ovality and the curvature is measured according to GOST 26877.

3.4. The test tubes for the presence of internal defects is carried out non-destructive method of monitoring cutting a defective part of a pipe according to methodology described in Annex 3, or by the method agreed between the manufacturer and consumer.

Allowed verification of tubes for the presence of internal defects on the fracture of the pipe.

Check on the manufacturer subjected the pipe end adjacent to the press-residue; while the broken ends of off-gage pipes when they are sent to the consumer may not be circumcised.

To verify the fracture, break off the end of the pre-incision up to 40% of pipe diameter.

Inspection of the fracture is carried out without the use of magnifying devices.

Tubes of an external diameter exceeding 150 mm in the fracture is not checked.

3.5. Tensile testing of tubes is carried out according to GOST 10006.

For the tensile test taken one sample from each tube, taken from the party.

The selection and preparation of samples for tensile tests carried out according to GOST 24047.

3.6. Hardness tests Brinell carried out according to GOST 9012. Pipe with a wall thickness of from 5 to 15 mm, inclusive experience under the condition of NV 5/750/30, pipes with wall thickness more than 15 mm under the condition of NV 10/3000/30.

The test can be conducted on the pipe and cut off the end of the sample, the height of at least 15 mm.

3.7. Chemical analysis carried out according to GOST 15027.1 — 15027.14 GOST, GOST 20068.1 — GOST 20068.3 or other methods of equal accuracy standard.

To determine the chemical composition of the selected one sample from each tube, taken from the party.

Sampling for chemical analysis is carried out according to GOST 24231.

The differences in the evaluation of the chemical composition analysis of chemical composition is carried out according to GOST 15027.1 — GOST 15027.14.

3.8. Allowed manufacturer to use other test methods and tools, providing the necessary accuracy.

If there is disagreement in the definition of indicators monitoring is carried out by the methods specified in the standard.

4. TRANSPORTATION AND STORAGE

4.1. Pipe transporterowych all types of transport in covered vehicles in accordance with cargo carriage regulations applicable to transport of this species.

When transporting pipes of length above 3 m of the vehicle are determined in accordance with cargo carriage regulations applicable to transport of this species.

Placement and mounting of pipe transported by rail should meet the specifications of loading and fastening of cargoes.

Pipes shall be laid and strengthened with the help of spacers and stops so that during transportation they cannot move them.

4.2. Pipes shall be stored in covered premises of the manufacturer or user and protected from mechanical damage, moisture and active chemical substances.

Under specified storage conditions consumer properties of pipes during storage are not changed.

ANNEX 1 (reference). Theoretical weight of 1 m of tubes of alloy grade, Brams 10−3-1,5

ANNEX 1
Reference


Table 5

On Rouge — tion diameter, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
5	7,5	8,5	10	11	12,5	15	17,5	20	22,5	25	27,5	30	32,5	35	37,5	40	42,5	50	60
42	-	-	Of 6.71	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
45	-	6,62	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
50	5,30	7,40	-	9,43	10,11	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
55	5,89	Of 8.39	-	10,60	-	Of 12.52	-	-	-	-	-	-	-	-	-	-	-	-	-	-
57	-	-	Of 9.71	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
60	6,48	Of 9.27	-	11,77	-	13,99	15,90	-	-	-	-	-	-	-	-	-	-	-	-	-
65	-	10,16	-	12,95	-	15,45	-	Of 19.59	-	-	-	-	-	-	-	-	-	-	-	-
70	7,66	The 11.04	-	14,13	-	16,93	Of 19.43	Of 21.65	-	-	-	-	-	-	-	-	-	-	-	-
75	-	11,92	-	15,31	-	18,40	21,19	23,70	-	-	-	-	-	-	-	-	-	-	-	-
80	-	12,80	-	16,48	-	19,57	22,96	Of 25.76	28,26	-	Of 33.91	-	-	-	-	-	-	-	-	-
85	-	13,69	-	17,67	-	21,35	Of 24.74	27,83	30,63	33,13	-	-	-	-	-	-	-	-	-	-
90	-	14,58	-	Of 18.85	-	22,83	26,51	29,90	Of 33.00	35,78	38,29	-	-	-	-	-	-	-	-	-
95	-	In 15.43	-	20,03	-	24,30	Of 28.27	31,96	35,34	Of 38, 44	41,23	-	-	-	-	-	-	-	-	-
100	-	16,35	-	21,21	-	25,77	30,04	34,02	37,70	Of 41.09	44,18	-	49,48	-	-	-	-	-	-	-
105	-	-	-	22,38	-	27,24	31,81	36,08	40,06	43,74	47,12	-	Of 53.01	-	-	-	-	-	-	-
110	-	-	-	23,56	-	28,71	33,58	Of 38.14	42,41	Of 46.39	50,07	-	56,55	-	-	-	-	-	-	-
115	-	-	-	Of 24.74	-	30.19 mm	35,34	Of 40.20	44,77	From 49.04	Of 53.01	-	60,10	63,18	-	-	-	-	-	-
120	-	-	-	-	-	Of 31, 66	37,11	42,26	47,12	51,69	55,96	59.94 Hz	63,45	Of 67.00	-	Of 71.76	-	-	-	-
125	-	-	-	-	-	33,13	38,88	44,33	49,48	54,34	58,90	-	67,15	70,83	74,22	-	-	-	-	-
130	-	-	-	-	-	-	40,64	Of 46.39	51,84	57,00	61,85	-	70,69	74,66	-	-	-	-	-	-
135	-	-	-	-	-	36,01	42,41	48,45	Of 54.19	59,64	64,79	-	74,22	78,49	82,47	86,15	-	-	-	-
140	-	-	-	-	-	-	44,18	50,51	56,55	62,30	-	72,89	77,75	82,32	86,59	-	-	-	-	-
155	-	-	-	-	-	41,97	49,48	56,69	Of 63.62	70,24	-	-	-	93,30	-	-	108,4	-	-	-
160	-	-	-	-	-	-	51,25	58,75	65,97	-	79,52	-	91,89	-	-	-	-	117,7	-	-
165	-	-	-	-	-	-	-	-	-	-	-	89,09	-	-	-	-	-	-	-	-
170	-	-	-	-	-	-	-	-	-	78,19	-	-	-	-	-	-	-	-	-	-
175	-	-	-	-	-	47,86	-	60,82	-	80,75	-	-	-	99,12	-	At 119.6	-	-	147,3	-
180	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	169,7
190	-	-	-	-	-	-	-	-	80,11	-	97,20	-	113,1	-	-	-	141,4	-	-	-
195	-	-	-	-	-	-	-	-	-	92,40	-	-	-	-	-	-	-	-	-	-
200	-	-	-	-	-	-	-	-	84,82	-	-	-	-	-	-	-	-	-	-	-
205	-	-	-	-	-	-	67,15	-	-	96,75	-	-	-	122,1	-	138,0	-	162,7	-	-
210	-	-	-	-	-	-	-	-	-	-	109,0	-	-	-	-	-	-	-	-	-
220	-	-	-	-	-	-	-	-	-	-	-	-	132,0	-	Of 152.6	-	-	-	197,2	-
225	-	-	-	-	-	-	-	-	-	107,4	-	-	-	-	-	-	-	-	-	-
235	-	-	-	-	-	-	-	-	-	-	-	134,5	-	-	-	-	-	-	-	-
240	-	-	-	-	-	-	79,52	-	-	-	-	-	148,4	-	169,1	-	-	-	-	-
250	-	-	-	-	-	-	-	-	-	-	-	-	155,5	-	177,3	-	-	-	-	-
260	-	-	-	-	-	-	-	-	-	-	-	-	162.6 mln	-	-	-	-	-	-	-
265	-	-	-	-	-	-	-	-	-	Of 128.6	-	-	-	-	-	-	-	-	-	-
280	-	-	-	-	-	-	-	-	-	-	-	-	-	-	202,0	-	-	-	-	-