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 Heat exchanger tubes 

Specification:21.3-711*0.5-55 
O.D:21.3mm-711mm 
wall thickness:0.5-55mm 
Length:2M-16M

Heat exchanger tubes enjoyed a high reputation throughout the world.It is widely exported to many countries.

 

Specification:21.3-711*0.5-55

O.D:21.3mm-711mm

wall thickness:0.5-55mm

Length:2M-16M

Standard:GB,ASTM,ASME,API,JIS,DIN 
Materiall:20#,45#,20G,A53A/B,A106A/B/C,SA213T12/22,API5L

High, Medium and Low Pressure Seamless Steel Tubes Widely used in boiler industry, metallurgy, chemical engineering, energy industries, etc.

 

Material

Steel tube

Classification

Chemical Composition

(Smelt analysis)%

C

Si

Min

P

S

Cr

Mo

V

Max

St 35.8

1,111

<0.17

0.10-0.35

0.40-0.80

0.035

0.035

-

-

-

St 45.8

1,111

<0.21

0.10-0.35

0.40-1.20

0.035

0.035

-

-

-

15Mo3

1,111

0.12-0.20

0.10-0.35

0.40-0.80

0.035

0.035

-

0.25-0.35

-

13CrMo44

111

0.10-0.18

0.10-0.35

0.40-0.70

0.035

0.035

0.70-1.10

0.45-0.65

-

10CrMo910

111

0.08-0.15

<0.50

0.40-0.70

0.035

0.035

2.00-2.50

0.90-1.20

-

10

Medium-Low Pres-sure

Boiler Tube

0.07-0.14

0.17-0.37

0.35-0.65

0.035

0.035

0.15

-

-

20

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.25

-

-

20G

High Pressure Boiler tube

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.30

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mechanical Properties

 

Applicable

standard

 

Tensile

Strength

(Mpa)

The Yield point for following

Tubes with vortex wall thickness(mp)

Percentage

dongcon5%

Lon5Do5

(Min)

Impact

Toughness value

(DVM-Sample)

DVM J

(Min)

<16

>16

(Mpa Min)

300-480

23%

225

25

48

 

DN

17575+B6

410-500

23%

245

21

41

450-600

27%

270

22

48

440-500

29%

290

22

48

450-600

28%

200

20

48

300-490

19%

138

24

-

GB3087

350-586

24%

226

20

-

GB3087

412-549

24%

245

24

39

GB5310

 

 

 
.

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