GOST 11850-72

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  ГОСТ 11850-72

GOST 11850−72 steel Wire for spring washers. Technical specifications (with Changes 1−5 N)

GOST 11850−72
Group V72

INTERSTATE STANDARD

STEEL WIRE FOR SPRING WASHERS

Specifications

Steel wire for spring washers. Specifications

ISS 77.140.65
OKP 12 2100

Date of introduction 1973−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of ferrous metallurgy of the USSR

2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from 24.95.72* N 1059
______________
* Error of the original. In the information reprints (July 1987 this document date of decision — 24 may 1972 — note the CODE.

3. REPLACE GOST 11850−66

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

5. The expiration time limit is removed by the Resolution of Gosstandart from 02.04.92 N 356

6. EDITION Changes N 1, 2, 3, 4, 5, approved in February 1986, October 1986, December 1987, March 1990, April 1992 (IUS 5−86, 12−86, 3−88, 6−90, 7−92)*
_______________
* Probably a mistake of the original. Should read: «the Publication with the Changes N 1, 2, 3, 4, 5, approved in February 1983, December 1983, April 1987, March 1990, April 1992 (IUS 5−83, 3−84, 7−87, 6−90, 7−92)». — Note the «CODE».


This standard applies to steel wire square, rectangular and trapezoidal cross-sections for the manufacture of spring washers.

(Changed edition, Rev. N 4).

1. TYPES AND BASIC DIMENSIONS

1.1. The wire should be made:

annealed — O;

cold.

Hard drawn wire is manufactured with a size of not more than 5 mm.

For precision manufacturing:

normal

high — P;

mechanical properties of two classes: 1, 2.

(Added, Rev. N 3, 4).

1. ASSORTMENT

1.1. Dimensions and limit deviations of wire of square section should match those in hell.1 and in table.1, wire of rectangular cross section — on features.2 and in table.2, wire trapezoidal — on features.3 and in table.3.

By agreement between manufacturer and consumer wire is manufactured with symmetric marginal deviations in size, equal to the sum of the absolute values of the limit deviations, given in table.1, 2, 3.

Damn.1. Dimensions and limit deviations of wire of square section

Damn.1

Table 1

mm

Damn.2. Dimensions and limit deviations of wire of rectangular cross section

Damn.2

Table 2

mm

Damn.3. Dimensions and limit deviations of the trapezoidal wire section

Damn.3

Table 3

mm

Examples of symbols

Wire of square section with a side of mm, 1st class, high precision, annealed steel 65G:

Wire 22−1-P-0−65G GOST 11850−72

Wire of rectangular section with sides =4 mm =3 mm 2 grade, high-precision, cold drawing of steel grade 70:

Wire 34−2-P-70 GOST 11850−72

Wire of trapezoidal cross section with sides =8 mm, =6,05 mm, 2nd class, normal accuracy, annealed, of steel 65G (middle line of a trapezoid is equal to 5.5 mm):

Wire ladder. 5,58−2-0−65G GOST 11850−72

(Changed edition, Rev. N 4).

2. TECHNICAL REQUIREMENTS

2.1. Wire shall be manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

The wire shall be made of steel 65G, 70 according to GOST 14959.

By agreement with the consumer allowed to produce steel wire from other brands, ensuring compliance wire requirements of this standard and GOST 6402.

(Changed edition, Rev. N 2, 3).

2.2. (Deleted, Rev. N 3).

2.3. Rupture strength of wire must conform to the standards specified in table.4.

Table 4

Note. According to the customer’s requirement cold drawn wire shall be manufactured with a normalized value of the lower limit of the temporary tear resistance.


(Changed edition, Rev. N 2, 3, 4, 5).

2.4. The wire must not break, crack after winding six turns around a rod with a diameter of 2.5.

Allowed the wound to replace the definition of elongation, which must be annealed wire of not less than 15%, for cold drawn wire is the norm in agreement with the consumer.

(Changed edition, Rev. N 3).

2.5. Depth bezoperatsionnogo layer of wire on the side should not exceed 2% of the size of the parties , including not more than 1% for the pure ferrite.

2.6. The wire should have a smooth surface without Burr, the prisoner, the tears, smoothed out bubbles, delaminations, rabini, sunsets, rust, scale.

On the surface of the wire allowed traces of broach in the form of marks and scratches with a depth not exceed half the tolerance on the side , as well as copper plating, the color of a tint and black patina.

(Changed edition, Rev. N 3).

2.7. Wire shall be manufactured in coils or on reels. In Hank or on a spool must be a single length of wire. A coil of wire not be withdrawn in «eight». Allowed to turn separate the coils from one plane to another.

2.8. Minimum weight of wire in rolls or coils shall be as defined in table.5. Allowed the coils or coils weighing not less than 50% of the specified in table.5 not more than 10% of the batch weight.

Table 5

(Changed edition, Rev. N 2, 3, 5).

3. ACCEPTANCE RULES

3.1. Wire apply to the acceptance of the parties. The party should consist of wire of one size, one grade of steel and one form of heat treatment, the same precision of manufacture of the same class and must be issued a document about quality that contains:

trademark or the name and trademark of manufacturer;

symbol wire;

the results of the tests;

the weight of the party;

the number of packages;

batch number.

(Changed edition, Rev. N 2, 3, 4).

3.2. Verification of dimensions (, ) and visual inspection should be subjected to each coil (coil) of the party.

To check the radius of the corners of the profile and the angle between the main and the sides of the trapezoid of the party take 5% skeins (coils), but not less than three coils (coils).

The radius of curvature of the corners of the profile and the angle between the base and sides of a trapezoid is allowed to check if these sizes are provided by the manufacture technology of wire.

(Changed edition, Rev. N 5).

3.3. (Deleted, Rev. N 2).

3.4. From the wire, adopted in size and appearance, select 5% of the skeins (coils), but not less than three coils, to test a temporary resistance, relative elongation, and decarburization tests wrapped.

3.5. If unsatisfactory test results of at least one of the indicators it is carried out re-tests on twice the number of samples taken from coils (coils) of the same batch of numbers being tested.

The results of repeated tests apply to the entire party.

3.4; 3.5. (Changed edition, Rev. N 2).

4. TEST METHODS

4.1. Inspection of the surface of the wire produce the naked eye. Allowed to use the magnifying glass with a 5−8-fold increase.

4.2. The size and profile wire check of the measuring tool with accuracy to 0.01 mm or templates. The angles between the base and the sides of the trapezoid test limit templates. The differences in the assessment of the quality profile wire check for Templeton under the projector or tool microscope.

(Changed edition, Rev. N 2).

4.3. The depth of the defect on the surface of the wire is determined by zapilovku or Stripping. Allowed the depth and nature of the defect determine microsclerotia.

4.3. To check the temporary tear resistance, elongation, decarburization and tests from each selected winding of a coil or coils take one sample.

(Added, Rev. N 2).

4.4. Wire tensile experiencing GOST 10446.

Gauge length of the specimen for determining elongation must be equal to 11.3.

4.5. The depth of decarburization is determined according to GOST 1763.

4.6. The wire on the winding experiencing GOST 10447. Wire rectangular and trapezoidal cross-section is wound around the smaller side of the profile.

4.7. According to customer’s demands chemical composition of a wire from steel 65G and 70 is determined according to GOST 22536.0 to GOST 22536.5, 22536.7 GOST-GOST 22536.9.

5. PACKING, MARKING, TRANSPORTATION AND STORAGE

5.1. The wire should be covered with a layer of preservative oil that protects the surface from corrosion.

(Changed edition, Rev. N 3).

5.2. Each coil of wire shall be tied with soft wire according to GOST 3282 or other wire according to normative-technical documentation in at least three places.

(Changed edition, Rev. N 1).

5.3. Skeins of one party bind in Bay wire according to GOST 3282 or other wire according to normative-technical documentation.

5.4. Each coil (coil coil) of wire should be wrapped with a layer of paper, then a layer of a polymeric film or nonwoven materials or fabrics, man-made fibers. When mechanized packaging a coil of wire should be wrapped in a layer of paper according to GOST 10396 or paper brand CMS-170, or other creped paper, equal in protective properties, or a polymer film with simultaneous locking packaging wire according to GOST 3282, or another wire.

As a packaging material used: waxed paper according to GOST 9569 (you may use a double layer of wrapping paper according to GOST 8828 or other securities that provide protection against corrosion);

the polymeric film according to GOST 10354, GOST 16272, or other polymer film;

container holstoproshivny or laminated fabric, stitched ribbon from the waste of the textile industry, or fabrics from chemical fibers according to normative-technical documentation, packaging or fabric for technical purposes according to GOST 5530.

By agreement with the consumer allowed the wire pack.

(Changed edition, Rev. N 1, 5).

5.5. Wire side* size of 2 mm or less, the gross mass of the package shall not exceed 100 kg, over 2 mm — 500 kg.
_______________
* The text matches the original. — Note the CODE.

Customer’s request wire is allowed to produce with a gross mass of package not exceeding 80 kg.

(Changed edition, Rev. N 1, 2).

5.5. Wire that is sent to the far North and remote areas, Packed in accordance with GOST 15846.

(Added, Rev. N 3).

5.6. To each coils (the Bay, coil) shall be securely attached a label, which indicate:

trademark or the name and trademark of manufacturer;

symbol wire;

stamp of technical control;

batch number.

(Changed edition, Rev. N 1, 2, 3, 4).

5.7. (Deleted, Rev. N 3).

5.8. Wire transporterowych all kinds of transport in accordance with cargo carriage regulations applicable to transport of this species. Rail carload transporterowych wire, fine or small shipments. Stowage and securing of cargoes transported by rail, must comply with the rules of loading and fastening of cargoes, approved by the Ministry of Railways of the USSR.

Allowed the transport of wire in universal containers according to GOST 15102,20435 GOST, GOST 22225.

The formation of transport packets is carried out according to GOST 26663. Allowed the formation of packages without the use of pallets.

(Changed edition, Rev. N 3, 5).

5.9. Storage wire — on storage conditions 3 to GOST 15150.

(Changed edition, Rev. N 3).

5.10. Transport marking under GOST 14192.

(Added, Rev. N 2).

Sec. 6. (Deleted, Rev. N 2).

The text of the document is verified by:
the official publication of the
Wire metal. Part 2: Sat. Standards. -
M.: IPK Publishing house of standards, 2003