Boiler pipe is one of the seamless steel pipes. The method of manufacturing is same to seamless pipe,
but this pipe has an requirement of the steel grades.Depending on the operating temperature,
it can be divided into two kinds: general boiler pipes and high-pressure boiler pipes.
● General boiler pipes is suitable for under 450℃.Its made of hot finished or cold rolled carbon steel pipes.
● The general boiler pipe is used to produce water screen tube、boiling water tube、superheating steam tube、
superheating steam tube of locomotive boiler、tobacco tube and generating tube etc.
● High-pressure boiler pipe is used to produce high-pressure or ultrahigh pressure superheater tube、
reheater tube、gas-guide tube、main steam pipe and so on.
Carbon Steel Seamless Tubes for High pressure Boiler.
For manufacture heating-pipelines,containers,coal-saving devices,superheaters
and reheaters of high pressure boilers(P＞9.8Mpa, 450＜T＜650)
|
Standard
|
Grade
|
Chemical Composition(%)
|
Mechenical Properties
|
|||||||||
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
No
|
V
|
(Mpa)
Tensie strength |
(Mpa)
Yield strength |
(%)
Elongation
|
||
|
GB5310
|
20G
|
0.17-
0.24
|
0.17-
0.37
|
0.35-
0.65
|
≤
0.030
|
≤
0.030
|
/
|
/
|
/
|
410-550
|
≥245
|
≥24
|
|
20MoG
|
0.17-
0.24
|
0.17-
0.38
|
0.70-
1.00
|
≤
0.030
|
≤
0.030
|
/
|
/
|
/
|
≥415
|
≥240
|
≥22
|
|
|
15MoG
|
0.12-
0.20
|
0.17-
0.37
|
0.40-
0.80
|
≤
0.030
|
≤
0.030
|
/
|
0.25-
0.35
|
/
|
450-600
|
≥270
|
≥22
|
|
|
15Cr1
MoG
|
0.12-
0.18
|
0.17-
0.37
|
0.40-
0.70
|
≤
0.030
|
≤
0.030
|
0.80-
1.10
|
0.40-
0.55
|
/
|
440-640
|
≥235
|
≥21
|
|
|
12Cr2
MoG
|
0.08-
0.15
|
≤0.50
|
0.40-
0.70
|
≤
0.030
|
≤
0.030
|
2.00-
2.50
|
0.90-
1.20
|
/
|
450-600
|
≥280
|
≥20
|
|
|
12Cr1
MoVG
|
0.08-
0.15
|
0.17-
0.35
|
0.40-
0.70
|
≤
0.030
|
≤
0.030
|
0.90-
1.20
|
0.25-
0.35
|
0.15-
0.30
|
470-640
|
≥255
|
≥21
|
|
Low-Medium-High Pressure Boiler Tube Catalogue 
Size range: 1-3/4 " nominal through 18 "OD
Wall Thickness up through 2 " thick
Specifications & Grades:
SA-106 Grade B/C, SA-335 P5, P9, P11, P22, P91
SA-333, Grade 1/6 , SA-213 T5, T9, T11, T22, T91
API 5LB & X-Grades through X-80
SA-53 Grade B
A-519 1020 / 1026
A-513 Type 5 (DOM)
Carbon Steel Seamless Tubes for High pressure Boiler.
|
Standard
|
Grade
|
Chemical Composition(%)
|
Mechenical Properties
|
|||||||||
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
No
|
V
|
(Mpa)
Tensie strength |
(Mpa)
Yield strength |
(%)
Elongation
|
||
|
GB5310
|
20G
|
0.17-
0.24
|
0.17-
0.37
|
0.35-
0.65
|
≤
0.030
|
≤
0.030
|
/
|
/
|
/
|
410-550
|
≥245
|
≥24
|
|
20MoG
|
0.17-
0.24
|
0.17-
0.38
|
0.70-
1.00
|
≤
0.030
|
≤
0.030
|
/
|
/
|
/
|
≥415
|
≥240
|
≥22
|
|
|
15MoG
|
0.12-
0.20
|
0.17-
0.37
|
0.40-
0.80
|
≤
0.030
|
≤
0.030
|
/
|
0.25-
0.35
|
/
|
450-600
|
≥270
|
≥22
|
|
|
15Cr1
MoG
|
0.12-
0.18
|
0.17-
0.37
|
0.40-
0.70
|
≤
0.030
|
≤
0.030
|
0.80-
1.10
|
0.40-
0.55
|
/
|
440-640
|
≥235
|
≥21
|
|
|
12Cr2
MoG
|
0.08-
0.15
|
≤0.50
|
0.40-
0.70
|
≤
0.030
|
≤
0.030
|
2.00-
2.50
|
0.90-
1.20
|
/
|
450-600
|
≥280
|
≥20
|
|
|
12Cr1
MoVG
|
0.08-
0.15
|
0.17-
0.35
|
0.40-
0.70
|
≤
0.030
|
≤
0.030
|
0.90-
1.20
|
0.25-
0.35
|
0.15-
0.30
|
470-640
|
≥255
|
≥21
|
|
tubehigh qualiuty boiler tube used in manufaturing the boiler economizer, reheater, superheater and stea
1. Material: 10, 20, 20G, 20MnG, 25MnG, 15MoG, 12Cr1MoVG, SA106B, SA335 P11, SA 335 P22, ST45-8, 15Mo3, SA210C, SA192, STB 340, P235TR2 etc.
2. Standard: GB5310, GB3087, ASTM A106, ASTM A213, ASTM A210, ASTM A179, ASTM A192, ASTM A333, ASTM A335, JIS G3461, JIS G3462, DIN17175, BS3059, EN 10216-1
