Stainless tube

Stainless tubes — specialized product that is used for laying pipelines with high temperature conditions.

General characteristics

Heat-resistant stainless tubes are created from special chromium-nickel steel and are intended for operation at temperatures up to 850 °C. Among positive characteristics distinguish next properties of this product:

  • Resistance to aggressive environments at temperatures up to 1200 °C;
  • Does not react to contact with water or steam;
  • It is not amenable to magnetism;
  • Wall thickness not less than 0.08 mm;
  • Withstands heavy loads, etc.

Such characteristics allow product to be used in a wide variety of fields.

Application area

Among areas of use of heat-resistant tubes, most popular are:

  • Mechanical engineering;
  • Gas and oil industries;

If you use such a tube in house or in boiler room as chimney, then it can be in use decades.

Steel grades

Of brands of heat-resistant tubes, it is worth noting next:

Alloy grades

Chemical composition, %

Standard

GOST

Wnr

Uns

Fe

Si

B

Mn

Cr

Ti

Cu

Ni

Ce

V

P

C

S

N

Mo

W

10H23N18

1.4845

Aisi 310s

51.345−61

<1

<2

22−25

<0.2

<0.3

17−20

<0.035

<0.1

<0.02

GOST 5632−72

20H25N20S2

1.4841

Aisi 314

46.045−56

2−3

<1.5

24−27

<0.2

<0.3

18−21

<0.2

<0.035

<0.2

<0.02

<0.3

<0.2

GOST 5632−72

-

1.4835

S30815

62.04−68.4

1.4−2.5

<1

20−22

10−12

0.03−0.08

<0.045

0.05−0.12

<0.015

0.12−0.2

20H23N13

1.4833

Aisi 309s

56.24−66

<1

<2

22−25

<0.2

<0.3

12−15

<0.035

<0.2

<0.025

GOST 5632−72

20H20N14S2

1.4828

Aisi 309

57.74−67

2−3

<1.5

19−22

<0.2

<0.3

12−15

<0.035

<0.2

<0.025

GOST 5632−72

15H25T

1.4749

Aisi 446

70.99−76

<1

<0.8

24−27

<0.035

<0.15

<0.025

GOST 5632−72

15H5M

1.7362

501/502

91.015−95.05

<0.5

<0.5

4.5−6

<0.03

<0.2

<0.6

<0.05

<0.03

<0.15

<0.025

0.45−0.6

<0.3

GOST 20072−74

12H25N16G7AR

-

-

47.815−57

<1

<0.01

5−7

23−26

15−18

<0.035

<0.12

<0.02

GOST 5632−72

20H23N18

-

-

51.745−61

<1

<2

22−25

17−20

<0.035

<0.2

<0.02

GOST 5632−72

Such tubes will be able to serve as intended for many years in different areas of consumption.

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Mass units

Kilogram (kg) Metric ton (mt) Pound (lb)
1 000 1 2 200.62
1 0.001 2.20
0.4536   1