OST1 92000-90

UDC

Group B63

INDUSTRY STANDARD

Sheets OST1 92000−90

aluminum alloy

grade AMg6

Specifications Replaces OST1 92000−73

OKP 181511

This standard applies to sheets of aluminum alloy grade AMg6, intended for critical parts, including those made by machining, chemical and electrochemical milling.

CONTROL

EXAMPLE

Reg. No. VIFS 8432042 dated 06.12.90.

Developed Approved Date of introduction

VILS MAP 16.10.1990 from 01.01.1991

Validity

before 01.01.1996 ①

(unlim. Wed)

Reg. number	Made up	Checked	Beginning department	Ch. engineer
302 247−91	Kandyba	Pastushenko	Isupov	Rodin
302 247−91	05/16/91		05/15/91	05/31/91

Instead of OST1 92000−731 (302.879−83)

BNK: 16.05.91

05/27/91

① (rev. No. 2 8.04.96)

1. CLASSIFICATION

1.1. According to the manufacturing method, the sheets are divided into:

clad with technological cladding — B (AMg6B);

clad with thickened cladding — U (AMg6U).

At the discretion of the manufacturer, it is allowed to produce sheets without technological cladding (without additional marking) — Amg6.

1.2. According to the state of the material, the sheets are divided into:

annealed — M (AMgbBM, AMg6UM, AMg6M);

annealed with increased strength — MPP (AMg6BMPP, AMg6MPP);

cold-worked — N (AMg6BN, AMg6N);

work-hardened with increased strength — NPP (AMg6BNPP, AMg6NPP);

cold-worked with limited strength — NOP (AMg6BNOP, AMg6NOP);

without heat treatment — without additional designation — (AMg6, AMg6B);

without heat treatment with increased strength — PP (AMg6UPP).

2. VARIETY

2.1. Sheets, depending on the state of the material, are made with the dimensions given in table. 1.

2.2. The sheet thickness, width and maximum deviations in thickness (depending on the width) must correspond to those indicated in table. 2.

2.2.1. The theoretical mass (M theor.) Of one meter of a sheet is calculated by the formula:

where: H max. and B max. — the largest limiting dimensions in thickness and width, mm;

H min. and In min. — the smallest limiting dimensions in thickness and width, mm;

is the density of the AMg6 aluminum alloy, 2.64 g / .

The theoretical mass of one meter of fox is given in the obligatory appendix (Tables 1 and 2).

2.3. The thickness of the sheet at any measuring point should not go beyond the permissible deviations.

Permissible thickness variation on annealed sheets (including on annealed with increased strength and on sheets without heat treatment of all thicknesses with a width of up to 2000 mm inclusive, as well as on cold-worked sheets (including on cold-worked sheets with increased and limited strength) of all thicknesses up to 2100 mm inclusively there should be no more than half of the tolerance field The permissible thickness difference on annealed sheets with a width of over 2000 mm should be actual and entered in the certificate.

Table 1

Material condition sheets	Designation of glory grade, plating and material condition	Thickness	Width	Length
Annealed	AMg6BM, AMg6M	0.8−10.5	1200, 1400 1500, 1600 1800, 2000	2000 — 7000
mm Continued table. 1
Material condition sheets	Designation of glory grade, plating and material condition	Thickness	Width	Length
Annealed	AMg6BM, AMg6M	2.0	2100, 2300 2500, 2700 2900, 3000	2100−3000
		2.5	2100, 2300 2500, 2700 2900, 3000	2100−3500
		3.0−4.0		2100−5000
		4.5−5.5		2100−4000
		6.0−10.5		2100−3000
		3.9−9.0	3050	3050−4000
	AMg6UM	0.5−0.7	1200, 1400 1500, 1600	2000−7000
	AMg6UM	0.8−5.5	1200, 1400 1500, 1600 1800, 2000	2000−7000
Annealed with increased strength	AMg6BMPP, AMg6MPP	3.0−10.5	1200, 1400 1500, 1600 1800, 2000	2000−7000
Cold-worked	AMg6BN, AMg6N	0.8−10.5	1200, 1400 1500, 1600 1800, 2000	2000−7000
Cold-worked	AMg6BN, AMg6N	4.0−6.6	2100	2000−7000
Hard-worked with increased strength	AMg6BNPP, AMg6NPP	2.0−10.5	1200, 1400 1500, 1600 1800, 2000	2000−7000
Hard-worked with increased strength	AMg6BNPP, AMg6NPP	4.0−5.5	2100	4000−7000
Hard-worked with limited strength	AMg6BNOP, AMg6NOP	3.0−10.5	1200, 1400 1500, 1600 1800, 2000	2000−7000
Without heat treatment	AMg6B, AMg6	5.0−10.5	1200, 1400 1500, 1600 1800, 2000	2000−7000
No heat treatment with increased strength	AMg6UPP	7.0	2000	5000−7000

Note. Sheets with a width of 3000 mm with a thickness of 3.0 to 9.0 mm are allowed to be made with a width of 3000 mm in an amount not exceeding 70% of the order.

table 2

Thickness of sheets

Limit deviations in thickness at width

1200

1400

1500,

1600

1800

2000

2100,

2300,

2500

2700,

2900,

3000

2050

0.5

0.6

0.7

0.8

0.9

1.0

1,2

1.5

1.6

1.8

1.9

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

10.5

-0.12

-0.13

-0.16

-0.22

-0.24

-0.28

-0.33

-0.34

-0.35

-0.36

-0.41

-0.42

-0.46

-0.47

-0.50

-0.12

-0.13

-0.14

-0.17

-0.25

-0.26

-0.29

-0.34

-0.35

-0.36

-0.37

-0.42

-0.43

-0.47

-0.48

-0.50

-0.13

-0.14

-0.17

-0.25

-0.23

-0.25

-0.26

-0.29

-0.34

-0.35

-0.36

-0.37

-0.42

-0.43

-0.47

-0.48

-0.50

-0.16

-0.18

-0.20

-0.26

-0.27

-0.30

-0.35

-0.36

-0.37

-0.38

-0.43

-0.44

-0.48

-0.49

-0.50

-0.18

-0.20

-0.22

-0.27

-0.28

-0.30

-0.35

-0.36

-0.37

-0.38

-0.43

-0.44

-0.48

-0.49

-0.50

+0.30

+0.31

+0.36

± 0.21

± 0.24

± 0.27

± 0.30

± 0.33

± 0.36

± 0.39

± 0.42

± 0.45

± 0.48

± 0.51

± 0.54

± 0.57

± 0.60

± 0.63

± 0.30

± 0.21

± 0.24

± 0.27

± 0.30

± 0.33

± 0.36

± 0.39

± 0.42

± 0.45

± 0.48

± 0.51

± 0.54

± 0.57

± 0.60

± 0.63

± 0.30

± 0.21

± 0.24

± 0.27

± 0.30

± 0.33

± 0.36

± 0.39

± 0.42

± 0.45

± 0.48

± 0.51

± 0.54

Notes. 1. By agreement of the parties, it is allowed to manufacture sheets with intermediate

dimensions in thickness, with maximum deviations in sheet thickness

for these sizes are accepted as for the nearest smaller size,

specified in table. 2.

2. By agreement with the customer, the maximum deviations of sheets without

heat treatment and annealed with a thickness of 5 mm or more with a width of up to

2000 mm and sheets AMg6UPP set to ± 5% of the nominal thickness.

3. Limit deviations of sheets with a thickness of 10 and 10.5 mm manufactured in

cold-worked and cold-worked with increased strength states, according to

customer’s requirement should be +0.3 mm,

-0.2

2.4. Limit deviations of sheets in width:

+10 mm — for sheets up to 2100 mm wide inclusive with a thickness of 0.5 to 4.5 mm;

+15 mm — for sheets up to 2100 mm wide inclusive with a thickness of 5.0 to 10.5 mm;

+30

-20 mm — for sheets over 2100 to 3050 mm wide.

For cold-worked (including cold-worked with increased and limited strength) sheets, the maximum deviations in width are +60 mm.

2.5. Limit deviations along the length of the sheets:

+25 mm — for sheets up to 2100 mm wide inclusive with a thickness of 0.5 to 3.5 mm;

+30 mm — for sheets up to 2100 mm wide, inclusive, with a thickness of 4.0 to 10.5 mm;

+50 mm — for sheets over 2100 mm wide.

2.6. Sheets with a length of more than 4000 mm and a thickness of more than 4.0 mm in the cold-worked state may be made with a width exceeding the nominal size by no more than 40 mm. (rev. 1)

2.7. Sheets are made measured (of a certain length) or a multiple thereof within the lengths indicated in table. 1, with an interval of 0.5 m.

2.8. Dimensions of sheets, grade of alloy, plating and condition of the material must be specified in the order-order.

Examples of symbols:

Sheet from alloy grade AMg6 with technological cladding (B), annealed (M), thickness

3.0 mm, 2000 mm wide. Length 3000 mm:

Sheet AMg6.B.N 3x2000x3000 OST1 92000−90

The same, without technological cladding:

Sheet AMg6. M 3x2000x3000 OST1 92000−90

The same, with a thickened cladding (U):

Sheet AMg6.U.M 3x2000x3000 OST1 92000−90

Sheet made of alloy grade AMg6 with technological cladding (B), cold-worked with limited strength (NOP), 6.0 mm thick, 1500 mm wide, 4000 mm long:

Sheet AMg6.B.NOP 5x1500x4000 OST1 92000−90

3. TECHNICAL REQUIREMENTS

3.1. Sheets are made in accordance with the requirements of this standard according to the technological instructions, approved in the prescribed manner.

3.1.1. The chemical composition of the AMg6 grade alloy must meet the requirements of GOST 4784.

The maximum permissible hydrogen content in the metal should not exceed 0.4 per 100 g of metal.

3.2. For sheet cladding (including for technological cladding), aluminum is used in purity not lower than grade AD1 in accordance with GOST 4764 (with a copper content of up to 0.02%) or not lower than grade A5 in accordance with GOST 11069.

At the request of the customer, as specified in the order, AMg6UM sheets with a thickness of 0.6 to 1.8 mm and AMg6UPP sheets with a thickness of 7.0 mm are made with cladding of A7 grade aluminum in accordance with GOST 11069.

3.3. The thickness of the technological cladding on each side of the sheet should not exceed 1.5% of the nominal sheet thickness.

The thickness of the thickened cladding on each side of the sheet shall not be less than 4% of the nominal sheet thickness.

AMg6UPP sheets with a thickness of 7.0 mm are made with a thickened cladding of at least 4.5% on each side of the sheet. By agreement between the manufacturer and the customer, it is allowed to produce sheets with a thickened plating of at least 6% on each side.

3.4. The mechanical properties of the sheets must correspond to those indicated in table. 3.

3.5. The sheets should be cut at right angles. The slant of the cut should not bring the sheets beyond the maximum deviations in width and length.

Burrs and delamination are not allowed on the edges of cut sheets; Sheets with a length of more than 4000 mm and a thickness of more than 4.0 mm, made widened, as agreed with the customer, may not be cut along the edges.

A sheet with a width of more than 2100 to 3000 mm inclusive with a thickness of 5.5 to 10.5, as well as sheets of 3050 mm wide with a thickness of 3.0 to 6.0 mm, are made without cutting along the edges.

3.6. Cracks, tears, delamination, saltpeter deposits, corrosive spots and areas exposed from cladding (on sheets with thickened cladding) are not allowed on the surface of the front and opposite front sides of the sheets; on the sheets, stains and stripes from burnt grease, non-metallic exceptions of metallurgical origin (slag inclusions and others) and non-metallic particles adhered to the surface are also not allowed, if they are not removed by control etching in 5−6% NaOH solution at 50 ° C for 1 -3 min. followed by clarification in a 30% solution of HNor according to the mode adopted at the factory.

On annealed sheets with a width of 2100 mm and more, spots and stripes from burnt grease are allowed.

3.7. Rejection signs are not:

a) small sunsets and nadirs (in the form of a metal sunset) with a total area of no more than:

80 for 1 sheet surface up to 2000 mm wide;

100 per 1 — «- -" — St. 2000 to 2500 mm;

400 per 1 — «- -" — St. 2500 mm;

b) nests from sunsets chipping, if their depth does not go beyond half of the maximum deviation in sheet thickness;

c) single and group small scratches with a depth not exceeding half of the maximum deviation in sheet thickness;

d) prints in the form of small dents and bulges, which should not go beyond half of the maximum deviation in sheet thickness;

e) notching and aluminizing with a stroke length of no more than 5 mm, which should not go beyond half of the maximum deviation in sheet thickness;

f) subplate bubbles, as well as areas exposed from cladding without cracks on sheets with technological cladding;

g) single trace of bends (kinks) in annealed sheets with a thickness of 0.5−0.8 mm, a width of 1200 mm or more with a length of more than 4000 mm and a width of 1500 mm or more with a length of up to 4000 mm;

h) fine smooth waviness resulting from vibration during autofrettage, with a distance between the tops of two adjacent waves equal to 200 mm or less, on cold-worked sheets up to 4.0 mm thick should be no more than 0.3 mm deep, and on sheets with a thickness of sv… 4.0 mm — no more than 0.5 mm deep.

At the request of the customer, specified in the order, small smooth waviness resulting from vibration during auto-fretting, with a distance between the tops of two adjacent waves equal to 200 mm or less, on cold-worked sheets with a thickness of St. 0.4 mm should not be more than 0.3 mm deep;

i) crescent shape along the length within the limits of obtaining the nominal compression of the sheet;

g) stains and stripes from the emulsion, if they occupy an area not more than:

3% of the sheet surface up to 2100 mm wide;

5% — «- -" — St. 2100 mm to 2500 mm;

7% — «- -" — St. 2500 mm;

k) sliding lines arising when the sheets are stretched;

l) tarnishing colors;

m) imprints from the rolls in the form of light and dark stripes formed during sheet rolling;

o) slight attrition with a total area of no more than:

2% of the surface of a sheet up to 2100 mm wide;

5% — «- -" — St. 2100 mm to 2500 mm;

7% — «- -" — St. 2500 mm;

n) individual cleaned sections of the surface of sheets with a total area of not more than 0.5% of the surface of a sheet up to 2100 mm wide and a total area of not more than 10% of the surface of a sheet with a width of over 2100 mm to a depth of no more than half of the maximum deviation, and on sheets with a width of St. 2100 to 3050 mm stripping depth is allowed more than half of the maximum deviation; on sheets with a thickened cladding — to a depth of no more than half the thickness of the planned layer.

Cleaning is done with paper-based abrasive paper in accordance with GOST 6546 or with fabric-backed abrasive paper in accordance with GOST 5009 with a grain size not larger than 6 in accordance with GOST 3647 or a set.

3.8. The depth of occurrence of all the permissible defects listed in clause 3.7 should not bring the sheets beyond the minimum permissible sheet thickness.

On sheets without heat treatment and annealed with a width of up to 2000 mm, a thickness of 5 mm or more, having maximum deviations in thickness of ± 5% of the nominal thickness, the depth of occurrence of all defects listed in clause 3.7 should not exceed the tolerance field for the thickness of the sheet and not take the sheet beyond the minimum permissible sheet thickness.

3.9. On the edges of sheets with a thickness of St. 4.0 mm and more than 4000 mm in length, made widened, as well as on allowances in the length and width of all sizes, defects are allowed due to the production method with the possibility of cutting out a rectangular sheet of nominal dimensions with a mark of defects with paint.

On square sheets with a width of 2100 mm and more outside the inscribed circle with a diameter equal to the minimum value of the sheet width, defects of rolling origin are allowed without limiting their characteristics and dimensions, and on rectangular sheets with a width of 2100 mm and above, these defects are allowed in places agreed with the customer …

3.10. The surface of the sheets after clarification at the customer’s site must meet the requirements of clause 3.7 of this standard.

3.11. For 1 sheet surface after removing the cladding, machining, electrochemical and chemical milling, no more than three single point inclusions with a diameter of up to 1.5 mm are allowed.

3.12. Deviation from the plane of sheets of all thicknesses, manufactured in annealed and annealed with increased strength states, as well as sheets with a thickness of 0.8 to 3.4 mm inclusive, manufactured in hard-worked and cold-worked with increased and limited strength states, must comply with the requirements specified in table. 4.

3.13. The deviation of the sheet from the plane of the plate per 1 m of the length of the sheets manufactured in cold-worked and cold-worked with increased and limited strength states, when a force is applied not more than 5 kgf, should not exceed:

8.0 mm — for sheets with a thickness of 3.5 to 7.0 mm;

2.0 «-" «" St. 7.0 «10.5».

3.14. The deviation from the plane of sheets of all thicknesses, manufactured without heat treatment, must meet the requirements specified in table. five.

Table 3

Sheet material condition	Alloy grade, plating and material condition	Sheet thickness, mm	Ultimate tensile strength σ6 MPa (kgf / )	Yield strength σ 0.2 MPa (kgf / )	Relates. Elongation at = 11.347,%
Sheet material condition	Alloy grade, plating and material condition	Sheet thickness, mm	No less
Annealed	AMg6NM, AMg6M	From 0.8 up to 10.5	315 (32.0)	155 (16.0)	15.0
Annealed	AMg6UM	From 0.5 up to 0.7 From 0.8 up to 5.5	255 (26.0) 275 (28.0)	120 (12.0) 130 (13.0)	15.0 15.0
Annealed with increased strength	AMg6BMPP, AMg6MPP	From 3.0 up to 10.5	355 (34.0)	175 (18.0)	15.0
Hard-worked with increased strength	AMg6BNPP, AMg6NPP	From 2.0 up to 10.5	410 (42.0)	330 (33.5)	5.5
Cold-worked	AMg6BN, AMg6N	From 0.8 up to 10.5	375 (38.0)	285 (29.0)	6.0
Hard-worked with limited strength	AMg6BNOP, AMg6NOP	From 3.0 up to 10.5	375−430 (38.0−44.0)	285−355 (29.0−36.0)	6.0
Without heat treatment	AMg6B, AMg6	From 5.0 up to 10.5	315 (32.0)	165 (16.0)	15.0
No heat treatment with increased strength	AMg6UPP	7.0	315 (32.0)	175 (16.0)	15.0

Table 4

Thickness

Width

Length

Deviation of the sheet (waviness and bulge) from the plane with free laying of the sheet (each side) on the plane of the slab: no more

over the entire surface of the sheet (including long sides)

on short sides (including sides up to 300 mm from the corners of the sheet)

0.5 to 1.0

Up to 1200 incl.

St. 1200 to 1600

Up to 4000

fifteen

sixteen

thirty

Up to 1200 incl.

St. 1200 to 1600

St. 4000

up to 7000

St. 1.0 to 1.5

Up to 1200 incl.

St. 1200 to 1600

Up to 4000

Up to 1200 incl.

St. 1200 to 1600

St. 4000

up to 7000

thirty

St. 1.5 to 4.0

Up to 1200 incl.

St. 1200 to 1600

Up to 4000

thirty

Up to 1200 incl.

St. 1200 to 1600

St. 4000

up to 7000

thirty

St. 4.0 to 10.5

Up to 1200 incl.

St. 1200 to 1600

Up to 4000

thirty

Up to 1200 incl.

St. 1200 to 1600

St. 4000

up to 7000

thirty

0.8 to 10.5

St. 1600 to 2000

Up to 4000

St. 4000

up to 7000

2.0 to 5.0

St. 2000 to 3050

Up to 5000

Note. For annealed sheets with a width of 2100 mm and more with a thickness of 5.5 to 10.5

deviation of sheets from the plane with free stacking of the sheet (each

side) on the plane of the plate should not be more than 100 mm.

Table 5

Thickness

Width

Length

Deviation of the sheet (waviness and convexity) from the plane with free laying of the sheet (by each side) on the plane of the slab, no more:

over the entire surface of the sheet (including long sides)

on short sides (including long sides up to 300 mm from the corners of the sheet)

From 5.0

Up to 10.5

1200

St. 1200

up to 1600

St. 1600

Ddo 2000

Up to 7000

(Sheets of improved quality made of Amg6 alloy. TU)

4. RULES OF ACCEPTANCE AND TEST METHODS

4.1. The batch must consist of sheets of the same material condition and size. The mass of the party is not limited.

4.2. The chemical analysis of the alloy is carried out from each heat.

4.3. Control of geometric dimensions, surface condition, deviations from the plane are subjected to each sheet.

4.3.1. Measurement of sheet thickness is carried out at a distance of at least 115 mm from the corner and at least 25 mm from the edges of the sheet.

Thickness of sheets is not controlled, but guaranteed by the manufacturer in accordance with the requirements of this standard.

4.3.2. Inspection of the surface of the sheets is carried out without the use of optical instruments.

4.3.3. Deviations of sheets from the plane indicated in table. 4 and 5, are determined by all four edges with measuring the distance from the control plate to the bottom surface of the sheet with a metal ruler in accordance with GOST 427.

Small smooth waviness with a distance between the tops of two adjacent waves equal to 200 mm or less according to clause 3.7 «a» is checked with a curved ruler 200 mm long, and deviation from the plane of the slab by 1 m of length according to clause 3.13 is checked in the following way: the sheet is placed on a control plate, a straightedge with a length of 1 m in accordance with GOST 8026 is applied to it and the maximum distance between the ruler and the sheet is measured using probes or a measuring ruler in accordance with GOST 427.

4.4. To determine the mechanical properties in tension, depending on the state of the material, select the number of sheets in accordance with table. 6, but not less than one sheet from each lot presented for delivery.

For the tensile test, one specimen is cut from each test sheet across the rolling direction.

Table 6

Sheet material condition	Designation of grade of alloy, cladding and condition of sheet material	The minimum number of tested sheets per batch,%
Annealed	AMg6BM, AMg6M	ten
Annealed	AMg6UM	100
Annealed with increased strength	AMg6BMPP, AMg6MPP	100
Cold-worked	AMg6BN, AMg6N	100
Hard-worked with increased strength	AMg6BNPP, AMg6NPP	100
Hard-worked with limited strength	AMg6BNOP, AMg6NOP	100
Without heat treatment	AMg6B, AMg6	ten
No heat treatment with increased strength	AMg6PP	100

Notes: 1. Sheets AMg6UM with a thickness of 0.5 to 1.8 mm, as well as sheets AMg6BN and AMg6N,

produced by coil rolling, tested in the amount of 10% of the batch.

2. At the request of the customer, protocols of mechanical tests of sheets

sent to the customer together with the accompanying documentation.

3. Roll-by-roll testing of sheet products on samples is allowed.

witnesses, selected from one sheet of each roll, in an amount,

provided by this standard.

4.5. Each strip is tested for hydrogen content in accordance with GOST 21132.1.

The arbitration analysis is carried out in accordance with GOST 21132.1.

4.6. The thickness of the thickened cladding is controlled at the manufacturing plants on each side of the sheet in accordance with GOST 1 90047.

At the request of the customer, the protocols for measuring the thickness of the cladding are sent to the customer together with the accompanying documentation.

4.7. Upon receipt of unsatisfactory results of random tests, at least on one sample, a retest of each sheet is carried out.

In a piecewise test, the indicators of mechanical properties are determined in accordance with the requirements of this standard with the rejection of sheets that have lunge.

In case of obtaining unsatisfactory results of testing the mechanical properties of AMg6UPP sheets with a thickness of 7.0 mm, it is allowed to retest the samples with the plating removed, the mechanical properties of which must correspond to Table. 3.

4.8. Sheets with a thickness of 3.0 to 10.6 mm are subjected to ultrasound control in any state of the material in the amount of 100% of the batch according to the list agreed between the manufacturer and the customer.

Sheets with a thickness of 6.5 to 10.5 mm with a width of St. 2000 mm, prepared in the annealed condition, are not subjected to ultrasound control.

4.9. Ultrasound control is carried out in accordance with GOST 1 92074. At the same time, for sheets with a thickness of 2.0 to 8.0 mm, the flaw detectors are adjusted on a through cylindrical control reflector with a diameter of 1.5 mm, and for sheets with a thickness of 8.5−10.5 mm — on flat-bottom reflector with a diameter of 1.5 mm, drilled to a depth equal to half the thickness of the tested sheet.

Ultrasonic vibrations are inputted perpendicular to the hot rolling direction.

A rejection sign for sheets based on the results of ultrasonic testing is the presence on the defectogram of a registered echo signal from a defect that exceeds the echo signal in amplitude:

for sheets with a thickness of 2.0−8.0 mm — from a through cylindrical control reflector with a diameter of 1.5 mm;

for sheets with a thickness of 8.6−10.5 mm — from a flat-bottomed reflector with a diameter of 1.5 mm, drilled at… half the thickness of the controlled sheet.

The size of the uncontrolled wave along the perimeter of the edges of the sheets — no more than 100 mm.

4.10. Sheets that do not meet the requirements of clauses 3.11 and 4.9 when controlled by the customer are considered metallurgical waste in accordance with MTUR 5−73.

4.11. All other requirements for sheets in terms of test methods must comply with GOST 21631.

4.12. Requirements for sheets in terms of marking, packaging and transportation must comply with GOST 21631.

Sheets with a width of more than 2000 mm are made without colorful marking.

At the request of the customer, copies of the chemical analysis protocols are sent to the customer.

The results of tests for hydrogen content are indicated in the certificate only at the request of the customer.

ATTACHMENT

Mandatory

Table 1

Sheet thickness, mm	Theoretical weight of 1 meter of sheet (in all states of the material except for work-hardened and work-worked with increased and limited strength)
	Sheet width, mm
	1200	1400	1500	1600	1800	2000	2100	2300	2500	2700	2900	3000	3050
0.5 0.6 0.7 0.8 0.9 1.0 1,2 1.5 1.6 1.8 1.9 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5	1,400 1,718 2.036 2,336 2.656 2.927 3.563 4.422 4,740 5.876 5,694 5,981 7.508 9.019 10,593 12,168 13,759 15,365 16.959 18,473 20,067 21,645 23,239 24,769 26,363 27.941 29,535 31,081 32,675	1,632 1.964 2,355 2.708 3.079 3.394 4.136 5,100 5.471 6,213 6,584 6,936 8,735 10.497 12,333 14,169 16,024 17,892 19,749 21,514 23.372 25,212 27,070 28,853 30,711 32,550 34,400 36,229 38,087	1,728 2.126 2,523 2,900 3.296 3.635 4,430 5.463 5.860 6,655 7,052 7.430 9,357 11,244 13,211 15,178 17,164 19,163 21,153 23.043 25.033 27,003 28,993 30.903 32,693 34,863 36,853 38,803 40,793	1,843 2,267 2.691 3.093 3.517 3.877 4.724 5.826 6,250 7,097 7,521 7,924 9.979 11,991 14.089 16,186 18.305 20,434 22,556 24,572 26,694 28,794 30.916 32,953 35,075 37,176 39,298 41,377 43,499	- - - 3.431 3.907 4,336 5.242 6.528 7,005 7,958 8,434 8,887 11,196 13,462 15,820 18,179 20,562 22.952 25,338 27,605 29,991 32,353 34,739 37.029 39,415 41,777 44,163 46,525 48,911	- - - 3.758 4,287 4.764 5,770 7.225 7,755 8,813 9,342 9,845 12.439 14.953 17,573 20,194 22,840 25,492 28,142 30.659 33,309 35,933 38,583 41,126 46,776 46,400 49,050 51,673 54,323	- - - - - - - - - - - 11,948 14,754 17,672 19,450 22,229 25,007 27,819 30,601 33,383 36,165 38,947 41,729 44,510 47.292 50,074 52,856 55,638 58,420	- - - - - - - - - - - 13,063 16,156 19,351 21,298 24,341 27,383 30,426 33,489 36,511 39,584 42,596 45,539 48,682 51,724 54,767 57,809 60,852 63,895	- - - - - - - - - - - 14,218 17,558 21,030 23,146 26,453 29,759 33,066 36,373 39,679 42,986 46,292 49.699 52,906 56,212 59,519 62.625 66,132 69,439	- - - - - - - - - - - 14,282 17,853 21,424 24,994 28,565 32,135 35,706 39,277 42,847 46,418 49.988 53,559 57,130 60,700 64,271 67,841 71.412 74,883	- - - - - - - - - - - 15,338 19,173 23,008 26,842 30,677 34,511 38,346 42.181 46.015 49,850 53,684 57,519 61,354 65,188 69,023 72,857 76,692 80,527	- - - - - - - - - - - 15,866 19,833 23,800 27,766 31,733 35,699 39,666 43.633 47,599 51,568 55,532 59,499 63,466 67,432 71,399 75,365 79,332 83,299	- - - - - - - - - - - - - 25,196 28,228 32,261 36,293 40,326 44.359 48,391 - - - - - - - - -

ATTACHMENT

Mandatory

table 2

Sheet thickness, mm	Theoretical weight of 1 meter of sheet (cold-worked and cold-worked with increased and limited strength)
	Sheet width, mm
	1200	1400	1500	1600	1800	2000	2100
0.5 0.9 1.0 1,2 1.5 1.6 1.8 1.9 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5	2,387 2,711 2.987 3.637 4.514 4.838 5.488 5.812 6.105 7,663 9.206 10.813 12.421 14.044 15,652 17,275 18,818 20,441 22.048 23.672 25,231 26,854 28,462 30.085 31,660 33,284	2.756 3.133 3.454 4.209 5.191 5.588 6.323 6,701 7,060 8,831 10,684 12,553 14,421 16.309 18,178 20.065 21,858 23,746 25.615 27,502 29,314 31.202 33,071 34.958 36,808 38,696	2.949 3.353 3.696 4.504 5.554 5,958 6,766 7,170 7,553 9,512 11,431 13,430 15,430 17,449 19,449 21,468 23,387 25.407 27.406 29,426 31,364 33,384 35,383 37.403 39,382 41.402	3.141 3.572 3.937 4.798 5.917 6.347 7.208 7,638 8,047 10,134 12,178 14.308 16,438 18,590 20,720 22,872 24.916 27,067 29,197 31,349 33,414 35,566 37,696 39,848 41,956 44,106	3.478 3.962 4.396 5.314 6.619 7.102 8,068 8,551 9.010 11,353 13,648 16,040 18,431 20,847 23,238 25,654 27.948 30,364 32,756 35,171 37.490 39,906 42,297 44,713 47,104 49,520	3.805 4,311 4.823 6,842 7.315 7,851 8,923 9,459 9,968 12,594 15,139 17,793 20,445 23.125 25,778 28,457 31,003 33,683 36,335 39.015 41,587 44,267 46.920 49,599 52,252 54,932	- - - - - - - - 12,090 14,930 17,882 19,681 22,493 25,304 28,116 30,928 33,739 36,551 39,362 42,174 44,986 47,797 50,609 53,420 56,232 59,044

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the All-Union Institute of Light Alloys

2. APPROVED AND PUT INTO EFFECT by the Order of the Main Department for the Development of Science and

production of special metallurgy from 16.10.1990

3. REPLACE OST1 92000−73

4. REFERENCE REGULATORY AND TECHNICAL DOCUMENTATION

Designation of the NTD referenced

Item number, sub-item

GOST 427−75

GOST 4784−74

GOST 8026−75

GOST 11069−74

GOST 21132.1−81

GOST 21631−758

OST1 90047−72

OST1 92074−78

MTUR5−73

4.3.3

3.1.1.3.2

4.3.3

3.2

4.5

4.11, 4.12

4.6

4.9

4.10

Group B53

INDUSTRY STANDARD

SUPERIOR QUALITY ALUMINUM SHEETS Change No. 1

ALLOY BRAND AMg6 OST1 92000−90

TECHNICAL CONDITIONS

ONP 181511

Clause 2.2. Tab. 2. Note 2 shall be stated in a new edition:

«2. Maximum deviations of sheets without heat treatment and annealed with a thickness of 5 mm and more with a width of up to 2100 mm and sheets AMg6UPP are set ± 5% of the nominal thickness.

Clause 2.6 shall be deleted.

Clause 3.7 p) (first paragraph) shall be revised:

«P) individual cleaned sections of the surface of sheets with a total area of not more than 0.5% of the surface of a sheet with a width of up to 2100 mm to a depth of no more than half of the maximum deviation in thickness on sheets without cladding or with technological cladding and to a depth of no more than half of the thickness of the planning layer on sheets with a thickened cladding, as well as a total area of not more than 10% of the surface of a sheet with a width of 2100 mm and more to a depth within the maximum deviation in thickness on sheets without cladding or with technological cladding. «

Clause 3.8. The second paragraph shall be supplemented with the words: «and annealed sheets with a width of over 2000 mm and a thickness of 2 mm or more (after the words» from the nominal thickness «).

Clause 3.9. The second paragraph shall be supplemented with the words: «and of metallurgical origin, including those detected by ultrasonic testing» (after the words «rolling origin»).

Reg. No. 843204/06 dated 19.12.91

DEVELOPED

VILS

APPROVED BY

GU RNPSM

01.11.91 g.

Introduction period

from 01.03.92

Amendment No. 1 OST1 92000−90 С.2

Clause 3.13 shall be reworded:

«3.13. Deviation of 1 m of the length of the sheet from the plane of the board, with one laying of the sheet on the plate, for sheets manufactured in cold-worked and cold-worked with increased and limited strength states should not exceed

30 mm for sheets with a thickness of 3.5 to 7.0 m;

25 «" — «over 7.0» 10.5 «

Clause 4.4. Table 6 Note 1 shall be stated in a new edition:

«1. Sheets AMg6UM with a thickness of 0.5 to 1.8 mm, as well as sheets AMg6BN, AMg6N, AMg6NPP, AMg6BNOP, AMg6NOP manufactured… rolled, are tested in an amount of 10% of the batch «.

Clause 4.10 shall be amended as follows:

«4.10. Sheets that do not meet the requirements of paragraphs. 3.11 and 4.9, under control at the customer and having defects of metallurgical origin, are technological waste, are returned to the manufacturer without any complaints or penalties and must be replaced without invoicing. «

Application. Required. Table 1. The column «Sheet width, mm 3050» should be supplemented with mass indicators for thicknesses: 6.5; 7.0; 7.5; 8.0; 8.5; 9.0, respectively: 52.424; 56,455; 60,488; 64,520; 68,552; 72,585;

tab. 2. Column «2100» shall exclude the indicators of the mass of sheets with a thickness: from 2.0 to 2.5 inclusive. from 7.0 to 10.5 mm inclusive;

supplement with table 3:

Amendment No. 1 OST1 92000−90 С.3

Table 3

Sheet thickness, mm	Theoretical weight of 1 meter of sheet (in the annealed state, without heat treatment and without heat treatment with increased strength of the material state)
	Sheet width, mm
	1200	1400	1500	1600	1800	2000
5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5	15.939 17,533 19,127 20,721 22,315 22,910 25,502 27,100 28,690 30,284 31,878 33,472	18,579 20,437 22,295 24,153 26.011 27,868 29,726 31,584 33,442 35,300 37,158 39,016	19,899 21.889 23,879 25,869 27,858 29,848 31,838 33,828 35,818 37,808 39,798 41,788	21,219 23,341 25,463 27,585 29,707 31,828 33,950 36,072 38,194 40,316 42,438 44,560	23,859 26,245 28.631 31.017 33.403 35,788 38,174 40,560 42,946 45,332 47,718 50,104	26,499 29,149 31,799 34,449 37.099 39,748 42,398 45.048 47,698 50,348 52,998 55,648

OKP 18 1511

Group B 53

INDUSTRY STANDARD

SUPERIOR SHEETS CHANGE No. 2

FROM ALUMINUM ALLOY OF OST1 92000−90

AMg6.TECHNICAL CONDITIONS

Remove the expiration date.

Reg. No. VIFS 8432042/02 dated 09/26/95.

DEVELOPED APPROVED Introduction deadline

VILS GU special metallurgy from 01.10.95

RF Committee on

metallurgy

OST1 92000-90

Specifications (TU)

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