GOST 19521-74

gost-19521-74.pdf (255.12 KiB)
ГОСТ 19521-74

GOST 19521−74 welding of metals. Classification

GOST 19521−74

Group В00

STATE STANDARD OF THE USSR

WELDING OF METALS

Classification

Welding of metals. Classification

Date of introduction 1975−01−01

APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from February 18, 1974 N 445

PROVEN in 1989

The VALIDITY PERIOD EXTENDED by the Decision of Gosstandart of the USSR from 09.06.89 N 1522 to 01.01.95*
___________
* Expiration removed by Protocol No. 4−93 of the Interstate Council for standardization, Metrology and certification (I & C N 4 1994). — Note the CODE.

REPRINTING. November 1990

1. This standard specifies the classification of the weld metals at the basic physical, technical and technological characteristics.

2. Basic features and steps of the classification are given in table. 1.

Table 1

The group features	Name signs	Name the levels of classification
Physical	Form of energy used for education of a welded joint	Class
The kind of energy source used directly for the formation of a welded joint	View
Technical	Method of protecting metal in the weld zone Continuous welding The degree of mechanization of welding	-
Technological	Established for each weld separately	-

3. Classification of welding physical characteristics are given in table. 2.

Table 2

Class welding	Type of welding
Arc
Electroslag
Electron beam
Plasma beam
Heat	Ion-beam
Glow discharge
Light
Induction
Gas
Thermite
Foundry
Contact
Diffusion
Inductionpurchase
Thermomechanical	Vasopressive
Thermocompression
Poprizova
Sleepersofa
Teritoriala
Chimney
Cold
Mechanical	Explosion
Ultrasonic
Friction
Magnetic pulse

Notes:

1. Diffusion welding can be carried out with the use of most energy sources used in welding metals, but stands as an independent type of welding for a relatively prolonged exposure to elevated temperature and slight plastic deformation.

2. In combined processes the simultaneous use of different types of welding.

4. Classification of welding processes according to technical characteristics given on features. 1.

5. Classification of types of welding technological characteristics given on features. 2−12.

6. Terms and definitions are given in the Appendix.

Damn. 1