GOST R 51834-2001

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  ГОСТ Р 51834-2001

GOST R 51834−2001 extruded Rods of aluminum alloys of high strength and improved ductility. Specifications (with Change No. 1)

GOST R 51834−2001
Group W55

STATE STANDARD OF THE RUSSIAN FEDERATION

THE PRESSED BARS OF ALUMINIUM ALLOYS
HIGH STRENGTH AND IMPROVED DUCTILITY

Specifications

Extruded aluminium alloy bars of high strength and improved ductility.
Specifications

ISS 77.150.10
GST 18 1160

Date of introduction 2002−07−01

Preface

1 DEVELOPED AND INTRODUCED by the all-Russian Institute of light alloys (JSC VILS), Technical Committee for standardization TC 297 «Materials and semi-finished products from light and special alloys"

2 ADOPTED AND put INTO EFFECT by the Resolution of Gosstandart of Russia from December 17, 2001 No. 533-St

3 INTRODUCED FOR THE FIRST TIME

The Change N 1, approved and put into effect by Order of the Federal Agency for technical regulation and Metrology dated 20.04.2005 N 92 St from 01.01.2006

Change No. 1 made by the manufacturer of the database in the text ICS N 7, 2005

1 Scope

This standard applies to extruded bars with round, square and hexagonal sections from aluminium alloys of high strength and high ductility, is designed for use in special machine building industries.

2 Normative references

The present standard features references to the following standards:

GOST 4784−97 Aluminum and aluminum deformable alloys. Brand

GOST 21488−97 pressed Bars of aluminium and aluminium alloys. Specifications

3 Classification

3.1 the Rods are divided as follows:

— in the form section:

round — CU,

square — SQUARE,

hex — CG;

— for precision manufacturing:

normal accuracy (no symbol),

high precision.

— as material:

without heat treatment (without designations)

hardened and naturally aged — T

hardened and artificially aged — T1;

— strengths:

the high strength — EP

high plasticity (recrystallized structure) — PC.

4 Basic parameters and dimensions

4.1 Bars manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

4.2 the Diameters of round bars, limit deviation on them, and theoretical weight of 1 m of the rod should correspond to the values given in table 1.


Table 1

Nominal diameter, mm	Maximum deviation of diameter, mm		The cross-sectional area, cm		Theoretical mass 1 m rod, kg
normal accuracy	high precision	normal accuracy	high precision	normal accuracy	high precision
30	-0,84	-0,52	6,872	6,947	1,959	1,980
32	-1,00	-0,62	7,793	7,887	2,221	2,248
34	-1,00	-0,62	8,814	8,914	2,512	2,541
35	-1,00	-0,62	9,348	9,451	2,664	2,694
Thirty six	-1,00	-0,62	9,898	10,004	2,821	2,851
38	-1,00	-0,62	11,045 think of the boost	11,157	3,148	3,180
40	-1,00	-0,62	12,254	12,372	3,492	3,526
42	-1,00	-0,62	13,527	13,651	3,855	3,890
45	-1,00	-0,62	15,553	15,686	4,433	4,471
46	-1,00	-0,62	16,260	16,396	4,634	4,673
48	-1,00	-0,62	17,721	17,863	5,050	5,091
50	-1,00	-0,62	19,244	19,392	5,485	5,527
52	-1,20	-0,74	20,750	20,936	5,914	5,967
55	-1,20	-0,74	23,243	23,440	6,624	6,680
58	-1,20	-0,74	25,877	26,085	7,375	7,434
60	-1,20	-0,74	27,712	27,927	7,898	7,959
65	-1,20	-0,74	32,573	32,806	9,283	9,350
70	-1,20	-0,74	37,828	38,079	10,781	10,852
75	-1,20	-0,74	43,475	43,744	12,390	Twelve thousand four hundred sixty seven
80	-1,20	-0,74	49,514	49,802	14,112	14,193
85	-1,40	-1,00	55,814	56,080	15,907	15,983
90	-1,40	-1,00	62,632	62,913	17,850	17,930
95	-1,40	-1,00	69,842	70,138	19,905	19,989
100	-1,40	-1,00	77,444	77,757	22,072	22,161
105	-1,40	-1,00	85,440	85,768	24,350	24,444
110	-1,40	-1,00	93,828	94,171	26,741	26,839
115	-1,40	-1,00	102,609	102,968	29,243	29,346
120	-1,40	-1,00	111,782	112,157	31,858	31,965
125	-1,60	-	121,153	-	34,529	-
130	-1,60	-	131,104	-	37,365	-
135	-1,60	-	141,448	-	40,313	-
140	-1,60	-	152,184	-	43,372	-
145	-1,60	-	163,313	-	46,544	-
150	-1,60	-	174,835	-	Forty nine thousand eight hundred twenty eight	-
155	-1,60	-	186,750	-	53,224	-
160	-1,60	-	199,057	-	56,731	-
165	-1,60	-	211,757	-	60,351	-
170	-1,60	-	224,849	-	64,082	-
175	-1,60	-	238,335	-	67,925	-
180	-1,60	-	252,213	-	71,881	-
185	-1,60	-	266,483	-	75,948	-
190	-2,00	-	280,553	-	79,958	-
200	-2,00	-	311,026	-	88,642	-
210	-2,00	-	343,071	-	97,775	-
220	-2,00	-	376,686	-	107,355	-
230	-2,00	-	411,872	-	117,383	-
240	-2,00	-	448,628	-	127,859	-
250	-2,00	-	486,956	-	138,782	-
260	-2,50	-	525,836	-	One hundred forty nine thousand eight hundred sixty four	-
270	-2,50	-	567,267	-	161,671	-
280	-2,50	-	610,268	-	173,926	-
290	-2,50	-	654,840	-	186,629	-
300	-2,50	-	700,982	-	199,780	-

4.3 Ovality of round bars should not display their dimensions for limit deviation for diameter.

4.4 the Diameter of the inscribed circle of square bars, tolerances for them, and theoretical weight of 1 m of the rod should correspond to the values given in table 2.


Table 2

The nominal inscribed circle diameter, mm	Limit deviation the diameter of the inscribed circle, mm		The cross-sectional area, cm		Theoretical mass 1 m rod, kg
normal accuracy	high precision	normal accuracy	high precision	normal accuracy	high precision
30	-0,84	-0,52	8,696	8,791	2,478	2,505
32	-1,00	-0,62	9,869	9,989	2,813	2,847
34	-1,00	-0,62	11,169	11,297	3,183	3,220
36	-1,00	-0,62	12,549	12,684	3,576	3,615
38	-1,00	-0,62	14,009	14,152	3,993	4,033
40	-1,00	-0,62	15,549	15,699	4,431	4,474
42	-1,00	-0,62	17,169	17,327	4,893	4,938
44	-1,00	-0,62	18,869	19,035	5,378	5,425
46	-1,00	-0,62	20,649	20,822	5,885	5,934
48	-1,00	-0,62	22,509	22,690	6,415	6,467
50	-1,00	-0,62	24,449	24,637	6,968	7,022
52	-1,20	-0,74	26,342	26,579	7,508	7,575
55	-1,20	-0,74	29,516	29,767	8,412	8,484
58	-1,20	-0,74	32,870	33,135	9,368	9,443
60	-1,20	-0,74	35,206	35,480	10,034	10,112
65	-1,20	-0,74	41,396	41,693	11,798	11,883
70	-1,20	-0,74	48,086	48,406	13,705	13,796
75	-1,20	-1,00	55,276	55,425	15,754	15,796
80	-1,20	-1,00	62,966	63,125	17,945	17,991
85	-1,40	-1,00	70,988	71,325	20,231	20,328
90	-1,40	-1,00	79,668	80,025	22,705	22,807
One hundred	-1,40	-	98,528	-	28,080	-
110	1,40	-	119,360	-	34,018	-
120	-1,40	-	142,220	-	40,533	-
130	-1,60	-	166,821	-	47,544	-
140	-1,60	-	193,661	-	55,193	-
150	-1,60	-	222,501	-	63,413	-

4.5 Diameters of the incircle hexagonal bars, tolerances for them, and theoretical weight of 1 m of the rod should correspond to the values given in table 3.


Table 3

The nominal inscribed circle diameter, mm	Tolerance for inscribed circle diameter, mm		The cross-sectional area, cm		Theoretical mass 1 m rod, kg
normal accuracy	high precision	normal accuracy	high precision	normal accuracy	high precision
30	-0,84	-0,52	7,578	7,660	2,160	2,183
32	-1,00	-0,62	8,593	8,697	2,449	2,479
36	-1,00	-0,62	10,914	11,032	3,111	3,144
41	-1,00	-0,62	14,205	14,339	4,049	4,087
46	-1,00	-0,62	17,929	18,079	5,110	Five thousand one hundred fifty three
50	-1,00	-0,62	21,220	21,384	6,048	6,094
55	-1,20	-0,74	25,630	25,847	7,304	7,366
60	-1,20	-0,74	30,557	30,794	8,709	8,776
65	-1,20	-0,74	35,918	36,175	10,237	10,310
70	-1,20	-0,74	41,712	41,989	11,888	11,967
75	-1,20	-1,00	47,939	48,068	13,663	13,699
80	-1,20	-1,00	54,509	54,737	15,561	15,600
85	-1,40	-1,00	61,546	61,838	17,541	17,624
90	-1,40	-1,00	69,063	69,373	19,683	19,771
95	-1,40	-	77,013	-	21,949	-
100	-1,40	-	85,397	-	24,338	-

4.6 the Opposite plane square and hexagonal rods should be parallel.

Allowed nonparallel sides not exceeding the limit deviations of the diameter of the inscribed circle.

4.7 the Largest radii of rounding of square and hex rods must match to the values given in table 4.


Table 4

In millimeters

The nominal diameter of the inscribed circle	The radius of the rounded edges, nothing more
square bars	hex bars
Of 30.0 to 50.0 incl.	2,5	1,2
SV. 50,0 „100,0 „	3,0	1,5
„100,0“ 150,0 „	3,5	-
Note — Radius is provided by the tool.

4.8 allowed by agreement between manufacturer and consumer the production of rods of intermediate diameters not listed in tables 1−3. Limit deviations for these diameters are taken as the nearest larger diameter.

4.9 Rods are made long:

from 1 to 6 m with a diameter up to 80 mm

from 1 to 5 m „"over 80″ 110 mm

from 0.5 to 4 m „"" 110 „300 mm.

4.9.1 Bars are made in segments of random, exact or multiple lengths within the dimensions specified in 4.9. The bars exact or multiple lengths manufactured with an interval of 500 mm. are allowed on agreement with the customer the production of rods or a multiple dimensional measuring length with other intervals.

4.9.2 Bars multiple lengths should produce with an allowance for each cut is 5 mm.

4.10 maximum deviations along the length of the bars in fixed lengths and multiple lengths shall not exceed + 10 mm.

4.11 Theoretical weight of 1 m of the rod is calculated by the size of the rod taking into account the values of limit deviations.

When determining the theoretical weight of 1 m of the rod over the original adopted value of the density of the aluminum alloy V95, equal to 2.85 g/cm.

To calculate the theoretical weight of bars of aluminum alloys other brands should use the conversion factors given in Appendix A.

4.12 Examples of symbols

Rod of alloy grade D1 in the quenched and naturally aged condition, high strength, circular section, diameter 50 mm, normal precision manufacturing, random length (ND):

The Rod D1.T.VP.CU 50хНД GOST R 51834−2001

The same, without heat treatment, high ductility, circular section, diameter 60 mm, high precision manufacturing, with length a multiple of (CD) 2000 mm:

The Rod D1. PC. CU 60Вх2000КД GOST R 51834−2001

5 Technical requirements

5.1 Bars are made from aluminum alloys AB, D1, D16, D19, D19ch, AK4, AK4−1, AK6, AK8, V95 with the chemical composition according to GOST 4784.

(Changed edition, Rev. N 1).

5.2 Mechanical properties of rods of high tensile strength shall conform to values given in table 5.


Table 5

Grade	The condition of the material bars in the manufacture of	The condition of the material samples when testing	Diameter of bars, mm	Temporary resistance, MPa (kgf/mm)	Yield strength , MPa (kgs/mm)	Take tional elongation, %
not less than
AV	Without heat treatment	Tempered and artificially aged	From 30 to 300 incl.	335 (34)	245 (25)	8
Tempered and artificially aged	From 30 to 100 incl.	335 (34)	245 (25)	8
D1	Without heat treatment	Tempered and naturally aged	From 30 to 300 incl.	420 (43)	275 (28)	10
Tempered and naturally aged	From 30 to 100 incl.	420 (43)	275 (28)	10
D16	Without heat treatment	Tempered and naturally aged	From 30 to 54 incl.	470 (48)	325 (33)	8
SV. 54 to 150 incl.	470 (48)	345 (35)	10
SV. 150 to 250 incl.	460 (47)	335 (34)	10
SV. 250 to 300 incl.	450 (46)	325 (33)	10
Tempered and naturally aged	From 30 to 54 incl.	470 (48)	325 (33)	8
SV. 54 to 100 incl.	470 (48)	345 (35)	10
D19, D19ch	Without heat treatment	Tempered and naturally aged	From 10 to 22 incl.	390 (40)	275 (28)	10
SV. 22 to 130 incl.	420 (43)	295 (30)	10
SV. 130 to 300 incl.	410 (42)	275 (28)	8
Tempered and naturally aged	From 10 to 22 incl.	390 (40)	275 (28)	10
SV. 22 to 100 incl.	420 (43)	295 (30)	8
AK6	Without heat treatment	Tempered and artificially aged	From 30 to 54 incl.	390 (40)	275 (28)	10
SV. 54 to 300 incl.	430 (44)	325 (33)	Ten
Tempered and artificially aged	From 30 to 54 incl.	390 (40)	275 (28)	10
SV. 54 to 100 incl.	430 (44)	325 (33)	10
AK8	Without heat treatment	Tempered and artificially aged	From 30 to 150 incl.	460 (47)	365 (37)	8
SV. 150 to 250 incl.	460 (47)	345 (35)	8
SV. 250 to 300 incl.	460 (47)	335 (34)	8
Tempered and artificially aged	From 30 to 100 incl.	460 (47)	365 (37)	8
V95	Without heat treatment	Tempered and artificially aged	From 30 to 150 incl.	570 (58)	490 (50)	6
SV. 150 to 250 incl.	560 (57)	490 (50)	6
SV. 250 to 300 incl.	550 (56)	480 (49)	6
Tempered and artificially aged	From 30 to 100 incl.	570 (58)	490 (50)	6

(Changed edition, Rev. N 1).

5.3 Mechanical properties of rods of high plasticity (recrystallized structure) in tension should conform to the values given in table 6.


Table 6

Grade	The condition of the material bars in the manufacture of	The condition of the material specimens under test	Bar diameter, mm	Temporary resistance, MPa (kgf/mm)	Yield strength , MPa (kgs/mm)	Elongation , %
not less than
AV	Without heat treatment	Tempered and artificially aged	From 55 to 170 incl.	295 (30)	225 (23)	14
SV.170 to 250 incl.	315 (32)	225 (23)	12
Tempered and artificially aged	55 to 100 incl.	295 (30)	225 (23)	14
D1	Without heat treatment	Tempered and naturally aged	From 55 to 250 incl.	375 (38)	215 (22)	14
Tempered and naturally aged	55 to 100 incl.	375 (38)	215 (22)	14
D16	Without heat treatment	Tempered and naturally aged	From 55 to 250 incl.	410 (42)	265 (27)	12
Tempered and naturally aged	55 to 100 incl.	410 (42)	265 (27)	12
AK4	Without heat treatment	Tempered and artificially aged	From 55 to 250 incl.	375 (38)	275 (28)	8
Tempered and artificially aged	55 to 100 incl.	375 (38)	275 (28)	8
AK4−1	Without heat treatment	Tempered and artificially aged	From 55 to 250 incl.	390 (40)	335 (34)	6
Tempered and artificially aged	55 to 100 incl.	390 (40)	335 (34)	6
AK6	Without heat treatment	Tempered and artificially aged	From 55 to 250 incl.	375 (38)	265 (27)	12
Tempered and artificially aged	55 to 100 incl.	375 (38)	265 (27)	12

5.4 Surface bars should not have cracks, delaminations, non-metallic inclusions, spots of corrosion origin and traces of nitrate, captivity, various kinds of pressing.

5.4.1 On the surface of bars allowed: scratches, risks, nicks, dents, single bubbles if the depth does not show a rod for the minus tolerances for diameter; color of tint, light and dark spots and stripes without roughnesses, including koltseobraznoj and spiral shape, which is the trace of the edits.

5.4.2 allowed local gentle sweep of bars, if it does not display the sizes of bars for negative maximum deviations. Cleaning of the cracks is not allowed.

5.5 the Macrostructure of bars should not have cracks, rihlat, delamination, tears, utain and inclusions of intermetallic compounds.

5.6 On the macrostructure of permitted non-metallic inclusions in the form of points, not larger than 0.5 mm or in the form of strokes with a length of not more than 3.0 mm in an amount of not more than one. For the alloy B95 are not allowed bright spots of the crystals depleted of the solution.

5.7 On the macrostructure of bars in high strength allowed a limited coarse grain bezel located partly or all around the perimeter, if its depth does not exceed:

2 mm for rods from alloys V95 and D16, D19, D19ch,

3 mm „"""" D1 and AK8,

4 mm „"""" AB and AK6.

The macrostructure of bars of high plasticity with recrystallized coarse grain structure of the rim is not allowed.

The macrostructure of bars permitted surface defects with depth within the limits of deviation.

(Changed edition, Rev. N 1).

5.8 Microstructure of bars, hardened, should not have signs of burnout.

5.9 Bars should be trimmed evenly with the ends. Bars with a diameter of over 50 mm shall not have burrs. Cut end Squareness, mm should not exceed 3°, and the output of rods beyond the sample length.

Bars with diameter up to 50 mm supply without deburring.

5.10 the curvature of the rods 1 m length should not exceed, mm:

for	bars	diameter	to	100 mm	-	3,
“	“	“	St.	100	“	120 mm	-	6,
“	“	“	“	120	»	150 mm	-	9,
"	"	"	"	150	"	200 mm	-	12,
"	"	"	"	200	"	300 mm	-	15.

Total allowable curvature should not exceed the local curvature of 1 m length in meters.

5.11 the twist Angle around the longitudinal axis 1 m of length of any plot of square and hex rods must not exceed 5°.

The total allowable twist should not exceed the twists per 1 m length of the rod in meters.

6 acceptance Rules

6.1 For testing mechanical properties of bars in high strength and improved ductility (recrystallized structure) select 10% of the bars from the party, but not less than three rods.

6.2 To check the macrostructure of bars in high strength and improved ductility (recrystallized structure) select 10% of the bars from the party, but not less than three rods.

6.3 Other requirements for the rules of acceptance GOST 21488.

7 test Methods

7.1 Requirements for test methods — according to GOST 21488.

8 Marking, packaging, transportation and storage

8.1 labelling Requirements, packaging, transportation and storage — by GOST 21488.

Annex a (informative). Conversion factors to calculate the approximate theoretical weight of 1 m of the rod from aluminum alloys

APPENDIX A
(reference)

Table A. 1

Grade	Density, g/cm	The conversion factor
AV	2,70	0,947
D1	2,80	0,982
D16	Of 2.78	0,976
D19	2,76	0,968
D19ch	2,76	0,968
AK4	2,77	0,972
AK4−1	2,80	0,982
AK6	2,75	0,964
AK8	2,80	0,982

(Changed edition, Rev. N 1).

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