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Stainless Steel Boiler Tube

Stainless Steel Boiler Tubes Supplier

Our products are used in most types of boilers such as:
  • Advanced Ultra-Supercritical (AUSC) Boiler
  • Biomass boiler
  • Black liquor recovery boiler
  • Coal-fired power boiler
  • Concentrated Solar Energy (CSP) Boilers
  • Reheater
  • Superheater
  • Syngas cooler
  • Waste heat boiler

Product Description Of Stainless Steel Boiler Tubes


Boiler tubes identify steel with open ends and a hollow section, and its length is bigger than that of its environment. According to the manufacturing process, it may be divided into seamless steel pipes and welded steel pipes. The specifications of the steel pipes utilize external dimensions (like outer diameter or side length) and Wall thickness signifies a broad assortment of measurements, from capillary tubes with a small diameter to large-diameter tubes with a diameter of several meters. Steel pipes may be used for pipelines, thermal equipment, machinery industry, petroleum geological exploration, containers, chemical industry, and specific functions.

Production Standard:

ASME Sa213 Seamless Ferrite and Austenitic Alloy Steel Tube for Boiler, Superheater, and Heat Exchanger

Production Range :

Normal Pipe Size

Outside DiameterNormal Wall Thickness (mm)

NPS

in

BN

mm

SCH5s

SCH10s

SCH40s

SCH80s

1/8

0.405

6

10.3

1.24

1.73

2.41

1/4

0.540

8

13.7

1.65

2.24

3.02

3/8

0.675

10

17.1

1.65

2.31

3.2

1/2

0.840

15

21.3

1.65

2.11

2.77

3.73

3/4

1.050

20

26.7

1.65

2.11

2.87

3.91

1

1.315

25

33.4

1.65

2.77

3.38

4.55

1 1/4

1.660

32

42.2

1.65

2.77

3.56

4.85

1 1/2

1.900

40

48.3

1.65

2.77

3.68

5.08

2

2.375

50

60.3

1.65

2.77

3.91

5.54

2 1/2

2.875

65

73.0

2.11

3.05

5.16

7.01

3

3.500

80

88.9

2.11

3.05

5.49

7.62

3 1/2

4.000

90

101.6

2.11

3.05

5.74

8.08

4

4.500

100

114.3

2.11

3.05

6.02

8.56

5

5.563

125

141.3

2.77

3.4

6.55

9.53

6

6.625

150

168.3

2.77

3.4

7.11

10.97

8

8.625

200

219.1

2.77

3.76

8.18

12.7

10

10.750

250

273.1

3.4

4.19

9.27

12.7

12

12.750

300

323.9

3.96

4.57

9.53

12.7

14

14.000

350

355.6

3.96

4.78

9.53

16

16.000

400

406.4

4.19

4.78

9.53

18

18.000

450

457.2

4.19

4.78

9.53

20

20.000

500

508.0

4.78

5.54

9.53

22

22.000

550

558.8

4.78

5.54

24

24.000

600

609.6

5.54

6.35

9.53

26

26.000

650

660.4

28

28.000

700

711.2

30

30.000

750

762.0

6.35

7.92

32

32.000

800

812.8

7.92

34

34.000

850

863.6

7.92

36

36.000

900

914.4

7.92

38

38.000

950

965.2

40

40.000

1000

1016.0

9.53

If you need more sizes, please consult with us

Main grade description in different standard

ASTM

DIN / EN

JIS

GB

ISO Name

Other

S20100

201

1.4372

SUS201

S35350

X12CrMnNiN17–7-5

J1 L1 LH 201J1

S20200

202

1.4373

SUS202

S35450

X12CrMnNiN18–9-5

202 L4, 202 J4, 202 J3

S30400

304

1.4301

SUS304

S30408

X5CrNi18-10

06Cr19Ni10

0Cr18Ni9

S31603

316L

1.4404

SUS316L

S31603

X2CrNiMo17-12-2

022Cr17Ni12Mo2 00Cr17Ni14Mo2

S40900

409

SUH409

S11168

X5CrTi12

0Cr11Ti

S40910

409L

1.4512

SUH409L

S11163

X2CrTi12

00Cr11Ti

022Cr11Ti

S41008

410S

1.4000

SUS410S

S11306

X6Cr13

S43000

430

1.4016

SUS430

10Cr17

X6Cr17

1Cr17

Main grade chemical components in different standard

201

C %

Si%

Mn %

P %

S %

Ni %

Cr %

N %

Mo %

ASTM

0.15

1.00

5.5-7.5

0.050

0.030

3.5-5.5

16.0-18.0

0.25

DIN/EN

0,15

1,00

5,5-7,5

0,045

0,015

3,5-5,5

16,0-18,0

0,05-0,25

JIS

0.15

1.00

5.5-7.5

0.060

0.030

3.5-5.5

16.0-18.0

0.25

GB

0.15

1.00

5.5-7.5

0.050

0.030

3.5-5.5

16.0-18.0

0.05-0.25

202

C %

Si%

Mn %

P %

S %

Ni %

Cr %

N %

Mo %

ASTM

0.15

1.00

7.5-10.0

0.060

0.030

4.0-6.0

17.0-19.0

0.25

DIN/EN

0,15

1,00

7,5-10,5

0,045

0,015

4,0-6,0

17,0-19,0

0,05-0,25

JIS

0.15

1.00

7.5-10.0

0.060

0.030

4.0-6.0

17.0-19.0

0.25

GB

0.15

1.00

7.5-10.0

0.050

0.030

4.0-6.0

17.0-19.0

0.05-0.25

304

C %

Si%

Mn %

P %

S %

Ni %

Cr %

N %

Mo %

ASTM

0.08

0.75

2.00

0.045

0.030

8.0 – 10.5

18.0-20.0

0.10

DIN/EN

0,07

1,00

2,00

0,045

0,015

8,0 – 10,5

17,5-19,5

0,10

JIS

0.08

1.00

2.00

0.045

0.030

8.0 – 10.5

18.0-20.0

GB

0.08

1.00

2.00

0.045

0.030

8.0 – 10.0

18.0-20. 0

316L

C %

Si%

Mn %

P %

S %

Ni %

Cr %

N %

Mo %

ASTM

0.030

0.75

2.00

0.045

0.030

10.0-14.0

16.0-18.0

0.10

2.00-3.00

DIN/EN

0,030

1,00

2,00

0,045

0,015

10,0-13,0

16,5-18,5

0,10

2,00-2,50

JIS

0.030

1.00

2.00

0.045

0.030

12.0-15.0

16.0-18.0

2.00-3.00

GB

0.030

0.75

2.00

0.045

0.030

10.0-14.0

16.0-18.0

0.10

2.00-3.00

409

C %

Si%

Mn %

P %

S %

Ni %

Cr %

N %

Ti %

ASTM

0.08

1.00

1.00

0.045

0.03

0.50

10.5-11.7

6*C% – 0.75

DIN/EN

JIS

0.08

1.00

1.00

0.040

0.030

10.5-11.7

6*C% – 0.75

GB

0.08

1.00

1.00

0.045

0.030

0.60

10.5-11.7

6*C% – 0.75

409L

C %

Si%

Mn %

P %

S %

Ni %

Cr %

N %

Ti %

ASTM

0.03

1.00

1.00

0.040

0.020

0.50

10.5-11.7

0.03

6*(C+N)-0.5

DIN/EN

0.03

1.00

1.00

0.040

0.015

10.5-12.5

6*(C+N)-0.65

JIS

0.03

1.00

1.00

0.040

0.030

10.5-11.7

6*C% – 0.75

GB

0.03

1.00

1.00

0.040

0.020

10.5-11.7

0.03

Ti≥8*(C+N)

410S

C %

Si%

Mn %

P %

S %

Ni %

Cr %

N %

Mo %

ASTM

0.08

1.00

1.00

0.040

0.030

0.60

11.5-13.5

DIN/EN

0,08

1,00

1,00

0,040

0,015

12,0-14,0

JIS

0.08

1.00

1.00

0.040

0.030

11.5-13.5

GB

0.08

1.00

1.00

0.040

0.030

0.60

11.5-13.5

Main grade mechanical property in different standard

201

Y.S./Mpa ≥

T.S./Mpa ≥

E.L./% ≥

HB ≤

HRB ≤

HBW ≤

HV ≤

ASTM

260

515

40

95

217

JIS

275

520

40

241

100

253

GB

205

515

30

- 

99

- 

202

Y.S./Mpa ≥

T.S./Mpa ≥

E.L./% ≥

HB ≤

HRB ≤

HBW ≤

HV ≤

ASTM

260

620

40

241

JIS

275

520

40

95

207

218

GB

304

Y.S./Mpa ≥

T.S./Mpa ≥

E.L./% ≥

HB ≤

HRB ≤

HBW ≤

HV ≤

ASTM

205

515

40

92

201

JIS

205

520

40

187

90

200

GB

205

515

40

92

201

210

316L

Y.S./Mpa ≥

T.S./Mpa ≥

E.L./% ≥

HB ≤

HRB ≤

HBW ≤

HV ≤

ASTM

170

485

40

95

217

JIS

175

480

40

187

90

 

200

GB

170

485

40

95

217

220

409

Y.S./Mpa ≥

T.S./Mpa ≥

E.L./% ≥

HB ≤

HRB ≤

HBW ≤

HV ≤

ASTM

JIS

175

360

22

162

80

175

GB

409L

Y.S./Mpa ≥

T.S./Mpa ≥

E.L./% ≥

HB ≤

HRB ≤

HBW ≤

HV ≤

ASTM

170

380

20

88

179

JIS

175

360

25

162

80

175

GB

170

380

20

88

179

200

410S

Y.S./Mpa ≥

T.S./Mpa ≥

E.L./% ≥

HB ≤

HRB ≤

HBW ≤

HV ≤

ASTM

205

415

22

89

183

JIS

205

410

20

88

183

200

GB

205

415

20

89

183

200

Production Process and Feature


The boiler tube is a type of seamless tube. The manufacturing method is just like that of seamless pipes, but there are stringent requirements on the steel grades used in the production of steel pipes. According to the operating temperature, it may be divided into general boiler tubes and high-pressure boiler tubes.

The mechanical components of the boiler tube are an important index to guarantee the last usage performance (mechanical properties) of the steel, and it is based upon the chemical composition of the steel and the heat treatment system. From the steel pipe standard, based on different application requirements, the electrical properties (tensile strength, yield strength or yield point, elongation), hardness, toughness indicators, and low and high-temperature properties demanded by users are defined.

Application


①General boiler tubes are mainly used to create water wall tubes, boiling water tubes, superheated steam tubes, superheated steam tubes for locomotive boilers, big and little smoke tubes, and arched brick tubes.

②High-pressure boiler tubes are mainly used to manufacture superheater tubes, heater tubes, air guide tubes, main steam tubes, etc. . high-pressure and ultra-high-pressure boilers. The supply and demand tendency of the high-pressure boiler tube business is generally secure, but the supply and demand situation of each particular sub-industry will be further split. Industry insiders pointed out that the most crucial link in the use and marketing of new energy-saving insulation 20g high-pressure boiler tubing equipment.

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