L-M-P Boiler Pipe

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● Standards:

GB3087-1999, ISO 9329-1, ASTM A106, DIN 17175,JIS G 345, BS 3059

● Function:

Mainly applied in manufacturing low-vapor-pressure ( P≤6Mpa ) superheating steam tube, boiling water tube, big and small fire tube and arch tube of low and medium pressure boiler, locomotive boiler, ordinary industrial boiler and commercial boiler.

 

 

● Spec:

 

OD
Wall Thickness
Unit(mm)
 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 7.0-8.0 9.0-10.0 11.0-12.0
Φ17-Φ18
●
●
●
●
Φ19
●
●
●
●
●
Φ20-Φ21
●
●
●
●
●
●
Φ22
●
●
●
●
●
●
Φ25
●
●
●
●
●
●
Φ27-Φ28
●
●
●
●
●
●
Φ32
●
●
●
●
●
●
●
Φ38
●
●
●
●
●
●
●
Φ42-Φ45
●
●
●
●
●
●
●
Φ48-Φ51
●
●
●
●
●
●
●
Φ57
●
●
●
●
●
●
●
Φ60-Φ73
●
●
●
●
●
●
●
Φ76-Φ89
●
●
●
●
●
●
●
Φ102
●
●
●
●
●
●
●
Φ108
●
●
●
●
●
●
●

● Tolerance of size Tolerance of size

Permissible tolerance of wall thickness:

Standard

Outside diameter

Wall thickness

Permissible tolerance of wall thickness

DIN17175

≤130

S≤2‧Sn

+15%,-10%

2‧Sn<S≤4‧Sn

+12.5%,-10%

S>4‧Sn

±9%

>130

S≤0.05da

+15%,-10%

0.05da<S≤0.11da

±12.5%

S>0.11da

±10%

GB 3087

--

3-20

+12.5%,-12.5%

>20

±10%

ASME SA450

--

2.4-3.8

+35%,-0%

>3.8-4.6

+35%,-0%

>4.6

+23%,-0%

ASME SA530

--

--

±12.5%

● Permissible tolerance of outside diameter

Standard

Outside diameter

Permissible tolerance of outside diameter

DIN17175

≤100

±0.75% (min=0.5mm)

>100

±0.90%

GB3087

≤159

+1.25% -1.0%

ASME SA450

≤101.6

+0.4 -0.8 (mm)

>101.6-190.5

+0.4 -1.2 (mm)

ASME SA530

≤48.3

+0.4 -0.8 (mm)

>48.3-114.3

±0.8 (mm)

>114.3

+1.6 -0.8 (mm)

● Mechanical Properties:

Steel grade

Tensile strength

Yield point of following steel tube is no less than

Extensibility
δ5% no less  than

ballistic work (vertical)

No less than


Hardness no more than

Standard

Rockwell hardness

Brinell hardness

Wall thickness
<5.1mm

Wall thickness
≥5.1mm

<15mm

≥15mm

St35.8

360-480

235

225

25

-

-

-

DIN17175

Sr45.8

410-530

255

245

21

-

-

-

15Mo3

450-600

270

22

-

-

-

13CrMo44

440-590

290

22

-

-

-

10CrMo910

450-600

280

20

-

-

-

14MoV63

460-610

320

20

55

-

12Cr1MoV

470-640

255

245

21

41

-

-

<15mm ≥15mm

SA192

≥325

180

35

-

77HRB

137HB

ASMESA192

SA106-B

≥415

240

 

-

-

-

ASMESA106

SA106-C

≥485

275

-

-

-

SA556-C2

≥480

280

-

-

ASMESA556

SA210-A1

≥415

255

-

79HRB(143HB)

ASMESA210

SA210-C

≥485

275

-

89HRB(179HB)

SA209-T1a

≥415

220

-

81HRB

153HB

ASMESA209

SA213-T12

≥415

205

-

163HB(85HRB)

ASMESA213

SA213-T22

≥415

205

-

163HB(85HRB)

● Composition(%):

0.44-0.65

Standard

Trademark

C

Si

Mn

P≤

S≤

Cr

Mo

V

GB 3087

10

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

-

-

DIN 17175

St35.8

≤0.17

0.10-0.35

0.40-0.80

0.030

0.030

-

-

-

St45.8

≤0.21

0.10-0.35

0.40-1.20

0.030

0.030

-

-

-

15Mo3

0.12-0.20

0.10-0.35

0.40-0.80

0.030

0.030

-

0.25-0.35

-

13CrMo44

0.10-0.18

0.10-0.35

0.40-0.70

0.030

0.030

0.70-1.10

0.45-0.65

-

10CrMo910

0.08-0.15

≤0.50

0.40-0.70

0.030

0.030

2.00-2.50

0.90-1.20

-

14MoV63

0.10-0.18

0.10-0.35

0.40-0.70

0.030

0.030

0.30-0.60

0.50-0.70

0.22-0.32

12Cr1MoV

0.08-0.15

0.17-0.37

0.40-0.70

0.030

0.030

0.90-1.20

0.25-0.35

0.15-0.30

ASME

0.08-0.15

0.45-0.75

0.45-0.65

0.030

0.030

1.60-2.10

0.50-0.65

0.28-0.42

ASME SA192

SA192

0.06-0.18

≤0.25

0.27-0.63

0.035

0.035

-

-

-

ASME SA106

SA106-B

≤0.30

≥0.10

0.29-1.06

0.035

0.035

-

-

-

SA106-C

≤0.35

≥0.10

0.29-1.06

0.035

0.035

-

-

-

ASME SA556

SA556-C2

≤0.30

≥0.10

0.29-1.06

0.035

0.035

-

-

-

ASME SA209

SA209-T1a

0.15-0.25

0.10-0.50

0.30-0.80

0.025

0.025

-

0.44-0.65

-

ASME SA210

SA210-A1

≤0.27

≥0.10

≤0.93

0.035

0.035

-

-

-

SA210-C2

≤0.35

≥0.10

0.29-1.06

0.035

0.035

-

-

-

ASME SA213

SA213-T12

0.05-0.15

≤0.50

0.30-0.61

0.025

0.025

0.80-1.25

-

SA213-T22

0.05-0.15

≤0.50

0.30-0.60

0.025

0.025

1.90-2.60

0.87-1.13

-