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Seamless steel tubes in small calibers for high(low and medium) Pressure boilers and petro chemical industry

Low medium tubes are used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5.88Mpa)
Seamless steel tubes in small calibers for high(low and medium) Pressure boilers and petro chemical industry
Main Steel Pipe Model
10, 20, 20G, 20MnG, 25MnG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, SA210A1, SA210C, SA213 T11, SA213 T12, SA213 T22, SA213 T23, SA213 T91, SA213 T92, ST45.8/Ⅲ, 15Mo3, 13CrMo44, 10CrMo910etc.

Standard Size
GB3087 Chinese national standard
GB5310 Chinese national standard
ASME SA210 Boiler and pressure vessel code of ASME
ASME SA213 Boiler and pressure vessel code of ASME
DINl7175 Deutsches industrial standard~

Diamensional tolerances:
Types of steel tubes Outer diameters Wall thickness
Cold-rolled tubes Tube sizes(mm)

Tolerances(mm)

Tube sizes (mm)

Tolerances(mm)

>30~50

±0.3

>3~20

±10%


Application
Used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5.88Mpa and operating temperature below 450 oC), as the pipes on the heated sides of high·pressure boilers, economizers, overheaters, reheaters and pipes for petrochemical industry(with the operating pressure above 9.8Mpa and operating temperature ranging between 450C-650C1


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Tel: +8621-33780199
Note:
This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.
Mechanical properties:
Standard codes
Models of steel tubes
Tensite strength(MPa)

Yield strength(MPa)

Elongation(%)
Hardness

GB3087

10

335~475

≥195

≥24

/

20

410~550

≥245

≥20

/

GB5310

20G

410~550

≥245

≥24

/

20MnG

≥415

≥240

≥22

/

25MnG

≥485

≥275

≥20

/

15CrMoG

440~640

≥235

≥21

/

12Cr2MoG

450~600

≥280

≥20

/

12Cr1MoVG

470~640

≥255

≥21

/

12Cr2MoWVTiB

540~735

≥345

≥18

/

10Cr9Mo1VNb

≥585

≥415

≥20

/

ASME SA210

SA210A-1

≥415

≥255

≥30

≤143HB

SA210C

≥485

≥275

≥30

≤179HB

ASME SA213

SA213 T11

≥415

≥205

≥30

≤163HB

SA213 T12

≥415

≥220

≥30

≤163HB

SA213 T22

≥415

≥205

≥30

≤163HB

SA213 T23

≥510

≥400

≥20

≤220HB

SA213 T91

≥585

≥415

≥20

≤250HB

SA213 T92

≥620

≥440

≥20

≤250HB

DIN17175

ST45.8/Ⅲ

410~530

≥255

≥21

/

15Mo3

450~600

≥270

≥22

/

13CrMo44

440~590

≥290

≥22

/

10CrMo910

480~630

≥280

≥20

/



Chemical composition:
Standard codes
Models of steel tubes
Chemical compositions (%)
C
Si
Mn
P
S
Cr
Mo
Cu
Ni
V
Al
W
Ti
Nb
N
GB3087
10
0.07~0.13
0.17~0.37
0.38~0.65
≤0.030
≤0.030
0.3~0.65
/
≤0.25
≤0.30
/
/
20
0.17~0.23
0.17~0.37
0.38~0.65
≤0.030
≤0.030
0.3~0.65
/
≤0.25
≤0.30
/
/
GB5310
20G
0.17~0.24
0.17~0.37
0.35~0.65
≤0.030
≤0.030
≤0.25
≤0.15
≤0.20
≤0.25
≤0.08
20MnG
0.17~0.24
0.17~0.37
0.70~1.00
≤0.030
≤0.030
≤0.25
≤0.15
≤0.20
≤0.25
≤0.08
25MnG
0.18~0.24
0.17~0.37
0.80~1.10
≤0.030
≤0.030
≤0.25
≤0.15
≤0.20
≤0.25
≤0.08
15CrMo
0.12~0.18
0.17~0.37
0.40~0.70
≤0.030
≤0.030
0.80~1.10
0.40~0.55
≤0.20
≤0.30
12Cr2MoG
0.08~0.15
≤0.50
0.40~0.70
≤0.030
≤0.030
2.00~2.50
0.90~1.20
≤0.20
≤0.30
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
≤0.20
≤0.30
0.15~0.30
12Cr2MoWVTiB
0.08~0.15
0.45~0.75
0.45~0.65
≤0.030
≤0.030
1.60~2.10
0.50~0.65
≤0.20
≤0.30
0.28~0.42
0.30~0.55
0.08~0.15
B 0.002~0.008
10Cr9Mo1VNb
0.08~0.12
0.20~0.50
0.30~0.60
≤0.020
≤0.010
8.00~9.50
0.85~1.05
≤0.20
≤0.40
0.18~0.25
≤0.015
0.06~0.10
0.03~0.07
ASME SA210
SA210A-1
0.13~0.19
≥0.1
0.45~0.65
≤0.030
≤0.030
SA210C
0.18~0.24
≥0.1
0.80~1.10
≤0.030
≤0.030
ASME SA213
SA213 T11
0.05~0.15
0.50~1.0
0.30~0.60
≤0.030
≤0.030
1.00~1.50
0.50~1.00
SA213 T12
0.05~0.15
≤0.50
0.30~0.61
≤0.030
≤0.030
0.80~1.25
0.44~0.65
SA213 T22
0.05~0.15
≤0.50
0.30~0.60
≤0.030
≤0.010
1.90~2.60
0.87~1.13
SA213 T23
0.04~0.10
≤0.50
0.10~0.60
≤0.030
≤0.030
1.90~2.60
0.05~0.30
≤0.030
1.45~1.75
B 0.0005~0.006
0.02~0.08
≤0.040
SA213 T91
0.08~0.12
0.20~0.50
0.30~0.60
≤0.020
≤0.010
8.00~9.50
0.85~1.05
≤0.40
0.18~0.25
≤0.015
0.06~0.10
0.03~0.07
SA213 T92
0.07~0.13
≤0.50
0.30~0.60
≤0.020
≤0.010
8.50~9.50
0.30~0.60
≤0.40
0.15~0.25
≤0.015
1.50~2.00
B 0.001~0.006
0.04~0.09
0.03~0.07
DIN 17175
ST45.8/
≤0.21
0.10~0.35
0.40~1.20
≤0.040
≤0.040
15Mo3
0.12~0.20
0.10~0.35
0.40~0.80
≤0.035
≤0.035
0.25~0.35
13CrMo44
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
0.08~0.15
≤0.50
0.30~0.70
≤0.025
≤0.020
2.00~2.50
0.90~1.10
≤0.30
≤0.30
≤0.015
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