TU 48-19-273-91

USSR MINISTRY OF METALLURGY

OKP 18 5100

UDC 669.28-42 Group B-52 I APPROVE Chief Engineer of MOZTMiTS __________ V.K. Pchitsky __ 12 _____ 12 _____ 1991

RODS, FORGINGS AND SHEETS

MADE OF MOLYBDENUM ALLOY TYPE CM-2A

Technical conditions

TU 48-19-273-91

(replaces TU 48-19-273-77)

Date of introduction from 01.01.92.

Chief Engineer ELMA plant __________ S.Yu. Makarov __ 15 _____ 11 _____ 1991

Deputy Director of VNIITS on scientific work __________ V.K. Rumyantsev __15_____11_____ 1991 Head of the Standardization Department and metrology VNIITS __________ A.I. Skripnik __06_____11_____ 1991

1991

These technical conditions apply to rods, forgings and sheets made of molybdenum alloy grade CM-2A (obtained by vacuum melting), intended for the production of parts and products for various purposes.

The conventional designation of rods, forgings and sheets when ordering is made taking into account the All-Union Classifier of Products (OKP). The OKP code consists of 10 characters, the first 5 of which indicate the type of rolled product, the next 2 - the alloy grade, the last 3 characters - the range of the main sizes of rods, forgings and sheets. Example of conventional designation: sheet 2.0 mm thick made of molybdenum alloy grade CM-2A - OKP 18 5133 863.

OKP codes are given in the All-Union Classifier of Industrial and Agricultural Products, class 18, blocks of brands and group nomenclature.

1. TECHNICAL REQUIREMENTS

1.1. Rods, forgings and sheets must comply with the requirements of these technical conditions.

1.2. The chemical composition of rods, forgings and sheets must comply with the requirements specified in Table 1.

Table 1

Name of components	Mass fraction, %
Alloying components:
Titanium	0.07-0.30
Zirconium	0.07-0.15
Detectable impurities:
Carbon, no more	0.004
Molybdenum	Warp

					TU 48-19-273-91
Change	Sheet	Doc. No.	Subp.	Date
Developer.		Arbuzov,	Esaulova		Rods, forgings and sheets made of molybdenum alloy CM-2A Technical conditions	Lit.			Sheet	Sheets
Check.		Petrova					A		2	21
						VNIITS
N. counter.
Approved.

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

Note: The mass fraction of molybdenum is considered to be the base metal and accompanying

undetectable impurities that do not impair the properties of the alloy.

1.3. The dimensions of bars and forgings must comply with the requirements specified in Table 2.

Table 2

mm

Product name	Diameter		Length
	Nomin.	Prev.off
Rods polished	from 8.0 to 8.9 incl. in 0.3	-0.30	from 100 to 1000 incl.
	from 9.0 to 13.5 incl. through 0.5	-0.40	from 100 to 1000 incl.
	from 14.0 to 16.0 incl. through 1.0	-0.60	from 100 to 1000 incl.
Rods turned	from 17.0 to 20.0 incl. through 1.0	±0.40	from 100 to 500 incl.
	from 21.0 to 30.0 incl. through 1.0	±0.40	from 100 to 500 incl.
	from 31.0 to 50.0 incl. through 1.0	±0.60	from 100 to 500 incl.
	from 51.0 to 60.0 incl. through 1.0	±0.80	from 100 to 500 incl.
Rods unpolished	from 8.0 to 10.8 incl. through 0.2	±0.10	from 150 to 1000 incl.
	from 11.0 to 19.0 incl. through 0.2	±0.20	from 150 to 1000 incl.
	from 20.0 to 28.0 incl. through 2.0	±1.50	from 150 to 1000 incl.
	from 30.0 to 60.0 incl. through 2.0	±2.00	from 150 to 1000 incl.
Forgings	from 65.0 to 100.0 incl. through 5.0	+5.0	not less than 150
	from 105.0 to 150.0 incl. through 5.0	+7.0	not less than 100
	from 155.0 to 180.0 incl. through 5.0	+10.0	not less than 50

					TU 48-19-273-91	Sheet
						3
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

Notes: 1. By agreement of the parties, delivery of rods and forgings with

other nominal diameter values and limits

deviations.

2. By agreement of the parties, delivery of rods and forgings is permitted.

measured length with maximum length deviations of ±10.0 mm.

1.4. The dimensions of the sheets must comply with the requirements specified in Table 3.

Table 3

mm

Thickness		Width	Length
Nomin.	Prev. off
0.8	±0.10	from 100 to 300 incl.	from 100 to 900 incl.
from 1.0 to 2.1 incl. in 0.1	+0.20 -0.10	from 100 to 400 incl.	from 100 to 900 incl.
from 2.2 to 3.4 incl. in 0.2	+0.30 -0.10	from 100 to 400 incl.	from 100 to 600 incl.
from 3.5 to 6.0 incl. in 0.5	+0.50 -0.20	from 100 to 400 incl.	from 100 to 400 incl.
from 6.5 to 10.0 incl. in 0.5	±0.50	from 100 to 300 incl.	from 100 to 300 incl.
from 11.0 to 20.0 incl. in 1.0	±1.0	from 100 to 200 incl.	from 100 to 200 incl.

Notes: 1. Sheets are supplied with maximum width tolerances.

and length ±10.0 mm.

2. By agreement of the parties, delivery of sheets with other materials is permitted.

nominal dimensions and maximum deviations.

3. By agreement of the parties, delivery of sheets of measured dimensions is permitted.

width and length with maximum deviations of ±15.0 mm.

					TU 48-19-273-91	Sheet
						4
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

1.5. The ends of the rods and the edges of the sheets must be trimmed.

1.6. The surface of rods, forgings and sheets must meet the following requirements.

1.6.1. Grinding cracks and contamination are not allowed on the surface of ground rods. Scores, scratches, traces of abrasive cleaning that do not take the dimensions of ground rods beyond the permissible deviations are not rejection signs.

1.6.2. Forged cracks and contamination are not allowed on the surface of turned rods. Imprints, marks, scratches, traces of abrasive cleaning that do not bring the dimensions of turned rods beyond the permissible deviations are not rejection signs.

1.6.3. Forged cracks are not allowed on the surface of unturned rods and forgings. Scale residues, contamination, imprints, scores, scratches, traces of abrasive cleaning that do not bring the dimensions of unturned rods and forgings beyond the permissible deviations are not rejection signs.

1.6.4. Cracks, delamination and foreign inclusions are not allowed on the surface of sheets. Rolled prints, pits, traces of abrasive cleaning that do not bring the thickness of the sheets beyond the permissible deviations, as well as ripples, etching shades, dirt spots, scratches and tarnish colors are not rejection signs. The surface of the sheets must be etched.

1.7. Rods, forgings and sheets must be supplied in an unannealed condition. Subject to agreement with the manufacturer, sheets with a thickness of 0.8 mm may be supplied in annealed condition.

1.8. Sheets with a thickness of (1.0-6.0) mm must not have internal delamination (requirement is optional, controlled by agreement with the manufacturer).

1.9. Deviation from flatness along the rolling direction is not

					TU 48-19-273-91	Sheet
						5
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

should be more than 10.0% of the length of the sheets. The deviation from flatness across the rolling direction should not be more than 5.0% of the width of the sheets.

1.10. The mechanical properties of sheets with a thickness of (1.0-2.0) mm and rods with a diameter of (8.0-30.0) mm must comply with the requirements specified in Table 4.

Table 4

Name and size of the product	Tensile strength, MPa (kgf/ mm2 )	Relative elongation after rupture, %, not less than
Sheets thickness:
from 1.0 to 2.0 mm incl.	not less than 686 (70)	15.0
Rods diameter:
from 8.0 to 14.0 mm incl.	666 (68) - 960 (98)	14.0
from 15.0 to 30.0 mm incl.	631 (65) - 931 (95)	14.0

Note: The mechanical properties of 0.8 mm thick annealed sheets should

meet the following requirements:

Ultimate strength - 686 (70) - 1078 (110) MPa (kgf/mm²)

relative elongation - not less than 10.0%.

1.11. Packaging.

1.11.1. Ground rods are assembled into bundles weighing no more than 7.0 kg and packed in wrapping paper according to GOST 8273-75, then in two-layer packaging paper according to GOST 8828-89 or waxed paper according to GOST 9569-79 and tied in at least three places with twine according to GOST 5107-70 to prevent free movement of the rods in the bundle. Each bundle is accompanied by a passport-certificate, which must indicate:

- name of the manufacturer;

- name of the product with indication of the brand;

					TU 48-19-273-91	Sheet
						6
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

- melt number;

- nominal diameter;

- weight of rods;

- chemical composition (from every 5th melt);

- the number of these technical conditions;

- stamp of the quality control inspector;

- date of manufacture.

1.11.3. A wooden tag indicating the alloy grade, melt number, size and weight is attached to each forging.

1.11.4. No special packaging of sheets is provided. The sheets are accompanied by a passport-certificate, which must indicate:

- name of the manufacturer;

- name of the product indicating the brand and delivery status;

- melt number;

- sheet sizes;

- weight of sheets;

- chemical composition (from every 5th melt);

- results of mechanical properties tests;

- the number of these technical conditions;

- quality control stamp;

- date of manufacture.

1.11.5. For shipment to the consumer, products are packed in wooden boxes according to GOST 2991-85, type I-IV or plywood boxes according to GOST 5959-80, type I-III, which are lined on the inside with waxed paper according to GOST 9569-79 or two-layer packaging paper according to GOST 8828-89. The packaging must prevent free movement of the products.

1.12. Marking.

1.12.1. Rods and forgings are not marked. Sheets are marked with a colored pencil indicating the alloy grade, melt number, size and weight.

					TU 48-19-273-91	Sheet
						7
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

1.12.2. Marking of transport containers is carried out in accordance with GOST 14192-77 with the application of handling signs No. 1,3.

2. ACCEPTANCE RULES

2.1. Rods, forgings and sheets are presented to the quality control department of the manufacturing enterprise in batches. A batch is a set of rods, forgings and sheets of the same type and condition, of the same diameter (or thickness and width), manufactured using the same technological process from the same batch of ingots and issued with the same quality document.

2.2. The manufacturer guarantees that rods, forgings and sheets meet the requirements of paragraph 1.2 (chemical composition).

2.3. A control check of the chemical composition of rods, forgings and sheets is carried out once per quarter on one randomly selected batch.

2.3.1. A sample is taken from one rod, forging, sheet from a batch. The sampling procedure is given in Appendix 1. If the chemical composition of the sample does not meet the requirements of paragraph 1.2, repeat samples are taken from twice the number of products. Repeat samples are tested only for the content of the components that were the cause of preliminary rejection. The batch is rejected if the chemical composition in at least one repeat sample does not meet the requirements of paragraph 1.2.

2.3.2. When a batch is rejected for chemical composition, chemical composition control is introduced for three subsequent batches. If satisfactory results are obtained for chemical composition in all three batches, control is transferred to item 2.2. If unsatisfactory control results are obtained for at least one batch, the chemical composition of rods, forgings and sheets is checked for each batch until satisfactory results are obtained for three consecutively released batches. Then control is transferred to item 2.2.

					TU 48-19-273-91	Sheet
						8
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

2.4. To check the compliance of rods, forgings and sheets with the requirements of paragraphs 1.3, 1.4 (dimensions), 1.5 (ends and edges), 1.6 (surface quality), 1.8 (internal delamination), 1.9 (deviation from flatness), the batch is subjected to continuous inspection.

2.5. Compliance with the requirements of paragraph 1.10 (mechanical properties) is checked on two samples taken from any place of one rod or sheet from the batch. Samples are taken from the sheet along the rolling direction. If unsatisfactory control results are obtained, repeat tests are carried out on another rod or sheet from the batch for the parameter that was the reason for the preliminary rejection.

The batch is rejected if the results of the repeated control do not meet the requirements of paragraph 1.10.

2.6. The manufacturer guarantees that rods, forgings and sheets comply with the requirements of clause 1.7 (delivery condition).

3. CONTROL METHODS

3.1. Compliance with the requirements of paragraph 1.2 (chemical composition) is checked: titanium and zirconium content - according to the method specified in Appendix 2; carbon content - according to GOST 14338.1-82; molybdenum content in the alloy is determined by the difference between 100% and the sum of alloying components as a percentage.

3.2. Control of rods, forgings and sheets for compliance with the requirements of paragraphs 1.3, 1.4 (dimensions) is carried out as follows.

- The diameter of rods and forgings is measured in two mutually perpendicular directions in each of three sections, evenly spaced along the length of the rod or forging:

micrometer MK-25 (0-25) mm, c.d. 0.01 mm, GOST 6507-90 (ground rods with a diameter from 8.0 to 16.0 mm inclusive, turned rods with a diameter from 17.0 to 24.0 mm inclusive, unturned rods with a diameter from 8.0 to 19.0 mm inclusive);

					TU 48-19-273-91	Sheet
						9
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

micrometer MK-50, (25-50) mm, c.d. 0.01 mm, GOST 6507-90 (turned rods with a diameter from 25.0 to 49.0 mm inclusive);

caliper ШЦ-ІІ, (0-250) mm, ±0.05 mm, GOST 166-89 (turned rods with a diameter from 50.0 to 60.0 mm inclusive);

caliper ШЦ-III, (0-300) mm, ±0.10 mm, GOST 166-89 (forgings with a diameter from 65.0 to 180.0 mm inclusive).

- The thickness of the sheets is measured using a micrometer ML-25, (0-25) mm, class 2, GOST 6507-90. The measurement is performed at least in four points on four sides of the sheet (at least in one point anywhere on each side) at a distance of (5-20) mm from the edge.

- Measurement of the width and length of products is performed using measuring metal rulers, mod. 188, (0-500) mm, ±0.15 mm, (0-1000) mm, ±0.20 mm, GOST 427-75.

3.3. Control of rods, forgings and sheets for compliance with the requirements of paragraphs 1.5 (ends and edges), 1.6 (surface quality) is carried out visually, without the use of magnifying devices. In controversial cases, when assessing the surface quality according to paragraph 1.6, it is allowed to use control cleaning followed by measurement.

3.4. The sheets are tested for compliance with the requirements of clause 1.8 (internal delamination) using ultrasonic testing according to OCT 3-2495-74.

3.5. Control of sheets for compliance with the requirements of clause 1.9 (deviation from flatness) is carried out in accordance with GOST 26877-86.

3.6. The mass of rods, forgings and sheets according to paragraphs 1.11.1, 1.11.2, 1.11.3, 1.11.4 is checked using the VNC-10 (RN-10Ts13) scales, (0.1-10.0) kg, ±0.005 kg, TU 25.06.575-77; RN25Ts13, (1.25-25.0) kg, ±0.005 kg, TU 25.06.455-75 or any other scales according to GOST 23676-79.

3.7. Control of rods and sheets for compliance with the requirements of paragraph 1.10 (mechanical properties) is carried out in accordance with GOST 1497-84. When testing rods with a diameter from 8.0 to 30.0 mm inclusive, the following is used:

					TU 48-19-273-91	Sheet
						10
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

section No. 9 according to GOST 1497-84 (Appendix 1).

When testing sheets with a thickness from 0.8 to 2.0 mm inclusive, a proportional flat sample, type I with a working part width of 20.0 mm is used in accordance with GOST 11701-84 (Appendix 1).

The arithmetic mean value of the parameter of all the samples subjected to testing is taken as the indicator of temporary resistance to relative elongation after rupture of the batch.

3.8. It is permitted to use measuring instruments not specified in clause 3.2, if the measurement error does not exceed the requirements of GOST 8.051-81.

4. TRANSPORTATION AND STORAGE

4.1. Transportation of rods, forgings and sheets is carried out in the packaging specified in paragraph 1.11, by road transport in accordance with the "General Rules for the Transportation of Goods by Road", Moscow, Transport, 1979; by rail transport in accordance with the "Rules for the Transportation of Goods", Moscow, Transport, 1983; by air transport in accordance with RPG-79 "Guide to Freight Transportation on Domestic Air Lines of the USSR", Moscow, Transport, 1979.

4.2. Transportation conditions in terms of exposure to climatic factors - according to storage conditions group 2(G) of GOST 15150-69. Transportation must exclude the movement of boxes with products.

4.3. The consumer must store the products in a dry, closed room that does not contain acid vapors, alkalis or other active reagents.

5. SUPPLIER'S WARRANTIES

5.1. Rods, forgings and sheets must be accepted by the quality control department of the manufacturing plant.

5.2. The manufacturer guarantees that the blanks comply with the requirements of these technical conditions, subject to compliance by the consumer

					TU 48-19-273-91	Sheet
						11
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

transportation and storage conditions established by these technical conditions.

5.3. The warranty period is set at 6 months from the date of manufacture of the product. After the warranty period has expired, the possibility of using rods, forgings and sheets in production is determined by the consumer.

					TU 48-19-273-91	Sheet
						12
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

APPENDIX 1

Mandatory

METHOD OF SAMPLE SELECTION AND PREPARATION FOR

DETERMINATION OF THE CHEMICAL COMPOSITION OF RODS,

FORGINGS AND SHEETS

1. ESSENCE OF THE METHOD

The method involves taking samples from rods, forgings and sheets to determine the chemical composition.

2. EQUIPMENT, MATERIALS,

TOOL, DEVICES

2.1. Lathe, GOST 18097-88E.

2.2. Milling machine, GOST 6955-79E.

2.3. Sharpening machine, GOST 971-78.

2.4. Sheet scissors, GOST 6282-88E.

2.5. Protective glasses, GOST 12.4013-85E.

2.6. Laboratory scales VLKT-160, TU 25.06.1398-78 or dial scales VNC-2, TU 25.06.2068-82.

2.7. Measuring metal ruler, GOST 427-75.

2.8. Non-standard size bags made of polyethylene film, GOST 10354-82.

2.9. Hacksaw machine, GOST 601-82E.

3. SAMPLING

To check the chemical composition, one rod, forging or sheet is selected from the batch. The sample is taken from any place of the rod, forging or sheet.

3.1. Sampling for carbon determination.

3.1.1. Sampling from rods, forgings and sheets is carried out using a lathe (rotation speed - from 300 to 1500 rpm,

					TU 48-19-273-91	Sheet
						13
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

feed - from 0.20 to 0.36 mm/rev) or a milling machine (rotation speed - from 100 to 250 rpm). On unturned rods and forgings, the oxidized layer is removed beforehand. Cutting is performed without the use of a cooling emulsion. Oxidation of chips due to heating is not allowed. The sample is thoroughly mixed, placed in a polyethylene bag and sent for analysis. The sample weight must be at least 10 g.

3.2. Sampling for determination of titanium and zirconium content.

3.2.1. Selection of templates of thickness (5-10) mm from a rod or forging is carried out using a hacksaw machine or a lathe (the mode according to paragraph 3.1.1). Selection of a sample of size (20-80) x (20-80) mm from a sheet is carried out using sheet shears or a milling machine (the mode according to paragraph 3.1.1). The mass of templates and sheet samples is not less than 20 g.

Templates or leaf samples are placed in a plastic bag and submitted for analysis.

					TU 48-19-273-91	Sheet
						14
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

APPENDIX 2

Mandatory

METHOD OF DETERMINING CONTENT

TITANIUM AND ZIRCONIUM

Titanium (wt.%) - 0.07-0.90

Zirconium (wt.%) - 0.05-0.40

1. ESSENCE OF THE METHOD

The method is based on the suppression of the molybdenum spectrum by creating conditions in the excitation source that promote the formation of low-volatile molybdenum compounds and creating conditions for the evaporation of titanium and zirconium.

2. EQUIPMENT, MATERIALS, REAGENTS

2.1. ISP-28 medium dispersion spectrograph.

2.2. AC arc generator DG-2, TU S2.2.851.002.

2.3. Non-registering microphotometer of type MF-2, MF-4 (in non-registering mode) or other similar type.

2.4. Spectroprojectors SP-2, DSP-1 or any similar type.

2.5. Laboratory scales, GOST 24104-88E.

2.6. Stopwatch, GOST 5072-79E.

2.7. Cotton wool, GOST 5556-81.

2.8. Lathe, GOST 18097-88E.

2.9. Carbon electrodes with a diameter of (6.0±0.2) mm, grade C-2 or OS4-7-4, sharpened to a cone with a platform diameter of 1.5 mm.

2.10. Photo glass, GOST 683-85.

2.11. File, GOST 1465-80.

2.12. Standard samples SOPII-84.

2.13. Developer consisting of two solutions:

					TU 48-19-273-91	Sheet
						15
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

Solution 1

- Metol, GOST 25664-83 - 2 g

- hydroquinone, GOST 9627-74 - 10 g

- sodium sulfite, GOST 195-77 - 52 g

- potassium bromide, GOST 4160-74 - 2 g

- distilled water, GOST 6709-72 - up to 1000 g

Solution 2

- Sodium carbonate, GOST 83-79 - 44 g

- distilled water, GOST 6709-72 - up to 1000 g

Equal volumes of solutions 1 and 2 are poured together before development, which is carried out at 20±1 °C.

Fixer

- Sodium thiosulphate (sodium thiosulfate),

GOST 27068-86 - 300 g

- ammonium chloride, GOST 3773-72 - 60 g

- sodium sulfite, GOST 195-77 - 45 g

- distilled water, GOST 6709-72 - up to 1000 g

3. ANALYSIS

3.1. Preparing samples for analysis

Samples and standard samples of arbitrary shape are taken for analysis. Sample weight is not less than 20 g. Samples and standard samples are sharpened with a file.

3.2. Conducting the analysis.

Sharpened standard samples and specimens are photographed on an ISP-28 spectrograph. The spectrograph slit width is 0.012 mm. Current source is an alternating current arc - 2.5 amperes, firing for 9-11 seconds, exposure - 30±5 seconds. The distance between the electrodes is 2.0±0.2 mm. Three spectra of each standard sample and specimen are photographed.

3.3. Processing results.

On the obtained spectrograms, the blackening of analytical substances is photometrically measured.

					TU 48-19-273-91	Sheet
						16
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

lines and comparison lines. Under the selected conditions for photographing the spectra, the darkening of the analytical lines and comparison lines should be in the region of normal darkening. The difference between the darkening of the analytical lines and comparison lines is found and averaged for the standard sample.

The calibration graph is plotted in the coordinates ΔS - lg C. For each of the three obtained ΔS values for the analyzed elements, the corresponding concentrations (C) are found using the calibration graph. The relative standard deviations S _r for the ranges of mass fractions are given in Table 5.

Table 5

Defined elements	Wavelength, mm		Range of determined mass fractions, %	S r values for ranges, mass fraction, %
	Lines of defined elements	Mo comparison lines		7·10 -2 - 1·10 -1	1·10 -1 - 9·10 -1
Titanium	351,084	350,811	0.07-0.90	0.23	0.22
Zirconium	256,887	257,442	0.05-0.40	0.25	0.25

					TU 48-19-273-91	Sheet
						17
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

APPENDIX 3

Mandatory

SCROLL

documents referenced in

given technical conditions

GOST 4.452-86	SPKP. Photometric devices. Nomenclature of indicators.
GOST 8.051-81	GSP. Errors allowed in measuring linear dimensions up to 500 mm.
GOST 12.4.013-85E	Protective glasses.
GOST 83-79	Sodium carbonate. Technical conditions.
GOST 166-89	Calipers. Technical conditions.
GOST 195-77	Sodium sulfite. Technical conditions.
GOST 427-75	Measuring metal rulers. Technical conditions.
GOST 601-82E	Hacksaw machines. Main dimensions.
GOST 683-85	Glass for photographic plates. Technical conditions.
GOST 971-78	Sharpening machines for cutters. Main dimensions.
GOST 1465-80	Files. Technical conditions.
GOST 1497-84	Metals. Tensile testing methods.
GOST 2991-85	Non-collapsible wooden boxes for cargo weighing up to 500 kg. General specifications.
GOST 3773-72	Ammonium chloride. Technical conditions.
GOST 4160-74	Potassium bromide. Technical conditions.
GOST 5072-79E	Mechanical stopwatches. Technical conditions.
GOST 5107-70	Flax-hemp twisted cords. Technical conditions.
GOST 5556-81	Medical hygroscopic cotton wool. Technical conditions.

					TU 48-19-273-91	Sheet
						18
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

GOST 5959-80	Non-collapsible boxes made of sheet wood materials for loads weighing up to 200 kg.
GOST 6282-88E	Sheet metal crank shears with inclined blade. Parameters and dimensions.
GOST 6507-90	Micrometers. Technical conditions.
GOST 6709-72	Distilled water. Technical conditions.
GOST 6955-79E	Longitudinal milling machines. Main dimensions.
GOST 8273-75	Wrapping paper. Technical conditions.
GOST 8828-89	Two-layer packaging paper. General specifications.
GOST 9569-79	Waxed paper. Technical conditions.
GOST 10354-82	Polyethylene film. Technical conditions.
GOST 11701-84	Metals. Methods of tensile testing of thin sheets and strips.
GOST 14192-77	Cargo marking.
GOST 14338.1-82	Molybdenum. Methods for determination of carbon.
GOST 15150-69	Machines, devices and other technical products. Design for different climatic regions. Categories, operating conditions, storage and transportation in terms of exposure to climatic factors of the external environment.
GOST 17308-88	Twine from bast fibers. Technical conditions
GOST 18097-88E	Lathes, screw-cutting and turning. Main dimensions.
GOST 19627-74	Hydroquinone (para-dioxybenzene). Technical conditions.
GOST 23676-79	Scales for static weighing. Weighing limits. Metrological parameters.
GOST 23711-79	Scales for static weighing. General technical requirements.
GOST 24104-88E	General-purpose laboratory scales and standard scales. General specifications.
GOST 25664-83	Metol (4-methylaminophenol sulfate). Specifications.

					TU 48-19-273-91	Sheet
						19
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date

GOST 26877-86	Metal products. Methods of measuring shape deviation.
GOST 27068-86	Sodium thiosulphate (sodium thiosulfate) 5-aqueous. Technical conditions.
OCT 3-2495-74	Blanks and parts made of refractory alloys. Methods and means of ultrasonic testing.
TU C2.2.851.002	AC arc generator.
TU 25.06.1398-78	Laboratory quadrant scales. Technical conditions.
TU 25.06.455-75	Tabletop dial scales. Technical conditions.
TU 25.06.575-77	Dial scales. Technical conditions.

					TU 48-19-273-91	Sheet
						20
Change	Sheet	Doc. No.	Signature	Date

Inv. No.	Sub. and date	Exchange inv. No.	Inv. No. duplicate.	Sub. and date