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GOST R 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, cmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1)

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, cmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1)

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, cmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1)

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 ГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1)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/cmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1).

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 resistanceГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1), MPa (kgf/mmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1))

Yield strength ГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1), MPa (kgs/mmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1))

Take
tional elongationГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1), %

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 resistanceГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1), MPa (kgf/mmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1))

Yield strength ГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1), MPa (kgs/mmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1))

Elongation ГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1), %

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/cmГОСТ Р 51834-2001 Прутки прессованные из алюминиевых сплавов высокой прочности и повышенной пластичности. Технические условия (с Изменением N 1)

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).

The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
M.: IPK Publishing house of standards, 2002

Revision of the document including
changes and additions
prepared by JSC «Code»