DRAWN COPPER-NICKEL TUBES

DRAWN COPPER-NICKEL TUBES


Standard documents:
Tubes of copper-nickel alloy grades 5-1. Specifications.
TU U 14-00195452.026-99

Alloy: 5-1 with the chemical composition of GOST 492-2006 (DSTU GOST 492:2007)
5-1, 30-1-1, 10-1,5-0,5 with the chemicalcomposition according to TU U 14-00195452.026-99.

Purpose: The pipes are used in the shipbuilding industry for the manufacture of condensers and heat exchangers of steam turbines.

Requirements:

Designation Standard

Mark
Alloy

* Outside diameter, mm

* Wall thickness, mm

*Pipe length, m

Way
manufacturing / Status

GOST 17217-79

5-1

14-36

1-3

2000-8000

Pulled
(Annealed)

TU U 14-00195452.026-99

5-1

30-1-1

12-30

1-2

1500-14100

semisolid

10-1,5-0,5

soft, semisolid,solid

The geometric dimensions according to GOST 17217-79, TU U 14-00195452.026-99.

State and mechanical properties of the material:

Designation Standard

Mark
Alloy

Way
manufacturing/
State

Temporary
resistance,
MPa
at least

Relative
lengthening of10,%
at least

GOST 17217-79

5-1

Pulled (Annealed)

255

30

TU U 14-00195452.026-99

5-1

semisolid

290

10

30-1-1

semisolid

440

10

10-1,5-0,5

soft

290

30

semisolid

340

10

solid

410

3

Mechanical properties of tubes in a solid state control in the annealed samples. Samples taken from tubes that are made in the solid state, have, after annealing in air for one hour at 650º C - 700º C.

The tubes should be sealed. Control discontinuities is performed using the eddy current flaw detector.

Other requirements according to GOST 17217-79, TU U 14-00195452.026-99.

_______________

* Requirements for the geometric dimensions of tubes negotiate with the customer when ordering.




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