TU 14-4-1285-84

OKP CODE 12 2600 Approved manufacturer July 9, 1984 Agreed with the base organization on standardization June 14, 1984 customer November 5, 1983 Right: _______

UDC Group B73 State standards committee USSR Council of Ministers Registered and entered in the register state standards 84.11.28 No. 2301707

WIRE FROM ALLOY GRADE X20N80-VI

TECHNICAL CONDITIONS

TU 14−4-1285−84
(instead of TU 14−1982−74)

Valid from 01.01.85 Valid until 01.01.90

This specification applies to the supply of the finest precision alloy wire with high electrical resistance for special applications.

The indicators of the technical level established by these specifications correspond to the requirements of the first quality category.

1. VARIETY

1.1. The diameter of the wire and the maximum deviations for it must correspond to Table 1.

Table 1

An example of a symbol for a wire with a diameter of 0.02 mm:
Wire 0.020 Kh20N80-VI TU 14−4-1285−84.

2. TECHNICAL REQUIREMENTS

2.1. The wire is made of an alloy of the Kh20N80-VI grade that meets the requirements of TU 14−1-1690−76.

2.2. The wire must be supplied in cold worked condition.

2.3. The norms of electrical resistance of 1m of wire must correspond to those indicated in Table 2.

table 2

Note: Norms of electrical resistance of 1m of wire with diameters of 0.035−0.050 mm are not established.

2.4. The surface of the wire must be clean, even, shiny, free of oxidation and dirt traces that prevent soldering. Dents, scratches, risks, delamination, cavities and other defects of mechanical origin on the wire are not allowed.

2.5. The weight of the wire on the spool must correspond to that indicated in table 3.

Table 3

2.6. The breaking force of the wire should correspond to that given in table 4.

Table 4

2.7. The wire must withstand the solderability test. With careful manual dilution of the wires of the forks, the wire should break, and not be pulled out from the soldering points.

2.8. The spread in the readings of the electrical resistance of the wire in the coil should not exceed 4%

2.9. A wire with a diameter of 0.03 mm or more, when winding from a coil and pulling into a thread, should not give knots and breaks. If there is a curl, the diameter of the latter in the free hanging from the coil must be at least 20 mm.

2.10. The wire is made on spools.

2.11. The specific electrical resistance of the alloy is given in reference annex 2.

3. RULES OF ACCEPTANCE

3.1. Wire is accepted in batches. The batch shall consist of a wire of the same nominal diameter and one heat.

3.2. The surface quality and weight of the wire is checked on each reel in the batch.

3.3. From the party adopted under clause 3.2. should be selected:

• to check the diameter of the wire — 100% of the spools;
• to check the breaking force — 100% of the coils;
• to check the spread of electrical resistance — 1% of the coils, but not less than two coils;
• to check the diameter of the curl on a wire with a diameter of 0.03 mm or more — 100% of the coils;
• for checking solderability — 100% of coils.

Checking the solderability of the wire is carried out at the consumer plant.

3.4. The chemical composition of the alloy is taken according to the document on the quality of the enterprise smelting the metal.

4. TEST METHODS

4.1. The surface quality is checked using a magnifying glass in accordance with GOST 25706−83 at an increased 25 ^X by viewing the surface layer of the wire on the coil.

4.2. The diameter of the wire is measured with a desktop micrometer with a pointer reading device with a graduation of 0.001 mm in accordance with GOST 10388−81.

4.3. To check electrical resistance, breaking strength, electrical resistance spread, two samples are taken from each selected coil from the outer end of the wire.

4.4. The determination of the electrical resistance of the wire is carried out in accordance with GOST 7229−76 (excluding clause 5.4.) On samples 1 m long using bridges (ohmmeters) with an accuracy class of at least 0.05 at a temperature of 25 ± 10 ° С.

4.5. To determine the spread of electrical resistance, electrical resistance of 1m is measured at the beginning and at the end of the coil and the difference between electrical resistance is referred to the average of the obtained values.

4.6. The breaking force is determined according to GOST 10446−80 on samples 100 mm long.

4.7. The alloy grade is checked for 100% of the coils by spectral analysis.

Checking the chemical composition of the finished wire can be carried out at the consumer enterprise by chemical analysis according to:

• GOST 12344−78, GOST 12345−80, GOST 12346−78, GOST 12347−77, GOST 12348−78, GOST 12349−78, GOST 12350−78, GOST 12351−81, GOST 12352−81, GOST 12353−78, GOST 12354−81, GOST 12355−78, GOST 12356−81, GOST 12357−66, GOST 12358−82, GOST 12359−81, GOST 12360−82, GOST 12361−82, GOST 12362−79, GOST 12369−79, GOST 12364−66, GOST 12365−66 and GOST 20560−81
• or by other methods that provide the required accuracy.

Sampling according to GOST 7565−81.

4.8. The diameter of the curl is measured when a loosely wound wire is applied to a metal ruler with a graduation of 1 mm in accordance with GOST 427−75.

4.9. Determination of soldering of wire to copper wires is made by solder POS-61 according to GOS 21931−75. A 50% solution of zinc chloride according to GOST 4529−78 is used as a flux, to which zinc oxide is added according to GOST 10262−73 until a white precipitate that does not disappear when agitated appears. To the resulting solution, ammonium chloride is added in accordance with GOST 2210−73 at the rate of 150 g of ammonium chloride per 1 liter of zinc chloride solution.

The wire is soldered to two twisted tinned copper wires with a diameter of 0.5 mm, the ends of which are separated (in the form of a fork) at a distance of 3−5 mm, as shown in Figure 1.

The wire is laid over the wires. The soldering points are moistened with flux and solder is applied to them with a soldering iron.

4.10. The mass of the wire on the coil is determined by weighing the coils of wire on a balance in accordance with GOST 24104−80 and subtracting the mass of the container written on the coil.

The mass of the wire on the coil is determined with an absolute error for a wire with a diameter of less than 0.016 mm — 0.01 g;

from 0.016 to 0.025 — 0.10 g;

over 0.025 mm — 1.0 g.

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

5.1. Marking, packaging, transportation and storage are carried out in accordance with GOST 8803−77.

5.2. Each delivered batch of wire must be accompanied by a document certifying that the quality of the wire meets the requirements of these specifications, which indicates:

• manufacturer’s trademark or name and trademark;
• wire symbol;
• heat number;
• net weight;
• box number;
• results of wire tests carried out;
• the chemical composition of the alloy;
• date of manufacture.

Note: The wholesale price of MNCHP For wire is set in accordance with Appendices 4, 5.

Registered: October 9, 1984

Head department of standardization
and quality of VNIIMetiz

ON. Galkina

1984 year

Appendix 1
Reference
TU 14−4-1285−84

P E R E CH E N L
referenced documents
in the text of technical specifications

TU 14−1-1690−76	Forged square billet of high ohmic resistance alloy, grade X20N80-VI.
GOST 7229−76	Cables, wires and cords. Method for determining the electrical resistance of conductive needles and conductors.
GOST 10446−80	Wire. Tensile test methods.
GOST 12344−78	Alloyed and high-alloyed steels. Methods for the determination of carbon.
GOST 12345−80	Alloyed and high-alloyed steels. Methods for the determination of sulfur.
GOST 12346−78	Alloyed and high-alloyed steels. Methods for the determination of silicon.
GOST 12347−77	Alloyed and high-alloyed steels. Methods for the determination of phosphorus.
GOST 12348−78	Alloyed and high-alloyed steels. Methods for the determination of manganese.
GOST 12349−83	Alloyed and high-alloyed steels. Methods for determining the tungsten content.
GOST 12350−78	Alloyed and high-alloyed steels. Methods for the determination of chromium.
GOST 12351−81	Alloyed and high-alloyed steels. Methods for the determination of vanadium.
GOST 12352−81	Alloyed and high-alloyed steels. Methods for determining the content of nicol.
GOST 12353−78	Alloyed and high-alloyed steels. Methods for the determination of cobalt.
GOST 12354−81	Alloyed and high-alloyed steels. Methods for determining the content of molybdenum.
GOST 12355−78	Alloyed and high-alloyed steels. Methods for the determination of copper.
GOST 12357−81	Alloyed and high-alloyed steels. Methods for determination of titanium content.
GOST 12357−66	Alloyed and high-alloyed steels. Methods for determination of aluminum content.
GOST 12358−82	Alloyed and high-alloyed steels. Methods for the determination of arsenic.
GOST 12359−81	Alloyed and high-alloyed steels. Methods for the determination of nitrogen content.
GOST 12360−82	Alloyed and high-alloyed steels. Methods for determining the boron content.
GOST 12361−82	Alloyed and high-alloyed steels. Methods for determining the content of niobium.
GOST 12362−79	Alloyed and high-alloyed steels. Methods for determination of trace impurities of antimony, lead, tin, zinc and cadmium.
GOST 12363−79	Alloyed and high-alloyed steels. Methods for the determination of selenium.
GOST 12364−66	Alloyed and high-alloyed steels. Methods for determining the content of cerium.
GOST 12365−66	Alloyed and high-alloyed steels. Methods for determining the content of zirconium.
GOST 20560−81	Alloyed and high-alloyed steels. General requirements for methods of chemical analysis.
GOST 427−75	Measuring metal rulers.
GOST 21931−76	Tin-lead solders in products.
GOST 4529−78	Zinc chloride.
GOST 2210−73	Ammonium chloride technical.
GOST 8803−77	Wire made of high electrical resistance alloys is the thinnest and finest.
GOST 10262−73	Zinc oxide.
GOST 10388−81	Bench micrometers with a pointer reading device.
GOST 25706−83	Magnifiers. Types, basic parameters. General technical requirements.
GOST 24104−80E	Laboratory scales for general use and exemplary.

Appendix 2
to TU 14−4-1285−84
Reference

The specific electrical resistance of the alloy must be within:

Ohm / m or and is determined on the intermediate annealed workpiece.

Appendix 3
to TU 14−4-1285−84
(instead of TU 14−1-982−74).
Mandatory

Wholesale wire prices

Wholesale prices are set for wire in coils.

When supplying wire on spools, wholesale prices for wire are increased by the cost of spools indicated in the table on page 73 of price list No. 01−17−1970.

/ Head price laboratory
VNIIMetiza 06/14/84 V.A. Serkin

Appendix No. 4
to TU 14−4-1285−84
Mandatory

Clean product standards for steel wire

/ Head laboratory pricing
VNIIMetiz on 18.10.84 V.A. Serkin

Appendix 5
to TU 14−4-1285−84

Form 3.1A (required)

Name of the type of product according to NTD		Product type code according to VKG OKP
Alloy wire, grade Kh20N80-VI		12 2600
OKP software blocks	ND designation		OKP code
Steel grades	X20N80-VI		9712
Profiles	according to technical conditions		8198
Technical requirements	TU 14−4-1285−84		8530
Order forms and delivery terms	on coils		00

Checked the calculation of codes:
Senior Researcher
laboratory of standardization V.A. Kudasheva

Head department of standardization
prices and quality N.A. Galkina

Appendix 6
Mandatory
TU 14−4-1285−84

CHANGE REGISTRATION SHEET

Name of the document containing the change	Document number and date	List of items of technical conditions to which the change applies

OKP CODE 12 2600 APPROVED BY according to established order 07/18/89 g. AGREED according to established order with interested organizations Right: _______

Group B73

WIRE FROM ALLOY GRADE X20N80-VI

TECHNICAL CONDITIONS

TU 14−4-1285−84

CHANGE # 1

Introduction date: 15.09.89

90.01.05
REGISTERED
No. 250170/01
A.M. Mukatshin
«30» .08.1989

The validity period of the technical conditions shall be extended until 01.01.95.

Introductory part. Delete the second paragraph.

Clause 2.5. Table 3. Delete column 3.

Clause 2.10 shall be stated in the wording:
«2.10. The wire is delivered on spools. «

Clause 4.6. Replace the words: «100m» with «100 mm».

Clause 4.7 and Appendix 1. Replace links:
GOST 12357−66 to GOST 12357−84; GOST 123364−66 to GOST 12364−84;
GOST 12365−66 to GOST 12365−84.

Clause 4.10 and Appendix 1. Replace the reference: GOST 24104−80 with GOST 24104−88.

Exclude Appendix 5.

The examination was carried out on July 14, 1989.
Head department of standardization
ON. Galkina

EXPLANATORY NOTE

to the draft change No. 1 to the technical specifications
TU 14−4-1285−84 «Wire from alloy grade X20N80-VI»

The draft change was developed in connection with the need to extend the validity period of the technical conditions, limited to 01.01.90

Head of the technical department V.D. Miroshnichenko

REFERENCE
about the level of wholesale prices for alloy wire
grade X20N80-VI according to TU 14−4-1285−84 with change No. 1

The draft amendment No. 1 to TU 14−4-1285−84 «Wire made of alloy grade X20N80-VI provides for certain changes in quality requirements that do not affect the level of wholesale prices, therefore, wire according to TU 14−4-1285−84 with amendment No. 1 is considered at wholesale prices for wire made of alloy grade X20N80-VI according to TU 14−4-1285−84, provided for in the appendix to the technical conditions and placed in the directory of wholesale prices for steel wire to the price list No. C1−17, p. 7, calculated by the normative-parametric method.

And about. head laboratory
pricing VNIIMetiza L.P. Evmenova