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12cr1movg High-Pressure Boiler Tube

China 12cr1movg High-Pressure Boiler Tube

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12cr1movg High-Pressure Boiler Tube

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Payment Terms	L/C, T/T
Delivery Time	10 to 35 days
Packaging Details	Default bare pipe bundling, or packaging according to customer requirements, such as oil cloth packaging, wooden box packaging, frame packaging
Brand Name	Hengxin Zhicheng
Model Number	High-Pressure Boiler Tube
Certification	ASTM, GB, ISO, etc.
Place of Origin	CHINA

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Product Specification


Payment Terms	L/C, T/T	Delivery Time	10 to 35 days
Packaging Details	Default bare pipe bundling, or packaging according to customer requirements, such as oil cloth packaging, wooden box packaging, frame packaging	Brand Name	Hengxin Zhicheng
Model Number	High-Pressure Boiler Tube	Certification	ASTM, GB, ISO, etc.
Place of Origin	CHINA

12cr1movg High-Pressure Boiler Tube
12Cr1MoVG is a high-quality chromium-molybdenum-vanadium alloy steel specifically designed for service in high-temperature and high-pressure environments. Its name provides a concise description of its chemical composition: approximately 1% Chromium (Cr), Molybdenum (Mo), and Vanadium (V), with "G" signifying its primary use for high-pressure boiler tubes (Gao - meaning high in Chinese, from the GB standard). This material falls under the category of heat-resistant and creep-resistant steels, making it a critical component in the thermal power generation and petrochemical industries.

The exceptional properties of 12Cr1MoVG stem from its carefully balanced alloying elements. Chromium enhances oxidation and corrosion resistance at elevated temperatures, molybdenum increases strength and helps minimize temper brittl

eness, while vanadium contributes to strength and stabilizes carbides, improving long-term creep resistance. This combination allows components made from 12Cr1MoVG to maintain structural integrity under severe conditions of stress, temperature, and corrosive atmospheres for extended periods.

Dimensional tolerance:

Pipe types	Outer-caliber(D)		Thickness(S)
	Pipe outer-caliber(mm)	Allowable warp(mm)	Pipe thickness(mm)	Allowable warp(mm)
Hot-rolled pipes	＞219～457	±1.0％	≤20	－10％,＋12.5％
			＞20～40	－10％,＋10％
	＞457～1066	±0.9％	＞40～70	－7％,＋9％
			＞70～120	－6％,＋8％

Mechanical Properties:

Standards	Steel pipes No.	Tensile strength(MPa)	Bend strength(MPa)	Elongation(％)	Impact energy(J)	Hardness
GB3087	10	335～475	≥195	≥24		/
GB3087	20	410～550	≥245	≥20		/
GB5310	20G	410～550	≥245	≥24	≥35	/
	20MnG	≥415	≥240	≥22	≥35	/
	25MnG	≥485	≥275	≥20	≥35	/
	15CrMoG	440～640	≥235	≥21	≥35	/
	12Cr2MoG	450～600	≥280	≥20	≥35	/
	12Cr1MoVG	470～640	≥255	≥21	≥35	/
	10Cr9Mo1VNb	≥585	≥415	≥20	≥35	/
ASME SA106	SA106B	≥415	≥240	≥22	≥35	/
ASME SA106	SA106C	≥485	≥275	≥20	≥35	/
ASME SA333	SA333Ⅰ	≥380	≥205	≥28	－45≥18	/
ASME SA333	ASME SA335	SA335 P11	≥415	≥205	≥22	≥35	≤163HB
SA335 P12		≥415	≥220	≥22	≥35	≤163HB
SA335 P22		≥415	≥205	≥22	≥35	≤163HB
SA335 P5		≥415	≥205	≥22	≥35	≤187HB
SA335 P91		585～760	≥415	≥20	≥35	≤250HB
SA335 P92		≥620	≥440	≥20	≥35	250HB
DIN17175	ST45.8/Ⅲ	410～530	≥255	≥21	≥27(DVM)	/
	15Mo3	450～600	≥270	≥22	≥34(DVM)	/
	13CrMo44	440～590	≥290	≥22	≥34(DVM)	/
	10CrMo910	480～630	≥280	≥20	≥34(DVM)	/
EN10216-2	15NiCuMoNb5-6-4 (WB36)	610～780	≥440	≥19	≥40	/

Chemical composition:

Standards

Steel pipes No.

Chemical composition(%)

GB3087

0.07～0.13

0.17～0.37

0.38～0.65

≤0.030

0.3～0.65

≤0.25

≤0.30

0.17～0.23

0.17～0.37

0.38～0.65

≤0.030

0.3～0.65

≤0.25

≤0.30

GB5310

0.17～0.24

0.17～0.37

0.35～0.65

≤0.030

≤0.25

≤0.15

≤0.20

≤0.25

≤0.08

20MnG

0.17～0.25

0.17～0.37

0.70～1.00

≤0.030

≤0.25

≤0.15

≤0.20

≤0.25

≤0.08

25MnG

0.23～0.27

0.17～0.37

0.70～1.00

≤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

0.80～1.10

0.40～0.55

≤0.20

≤0.30

12Cr2MoG

0.08～0.15

≤0.50

0.40～0.70

≤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

0.90～1.20

0.25～0.35

≤0.20

≤0.30

0.15～0.30

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 SA106

SA106B

0.17～0.25

0.70～1.00

≤0.030

SA106C

0.23～0.27

0.70～1.00

≤0.030

ASME SA333

SA333Ⅰ

0.09～0.12

0.7～1.00

≤0.020

≤0.010

SA333Ⅵ

0.09～0.12

0.9～1.10

≤0.020

≤0.010

ASME SA335

SA335 P11

0.05～0.15

0.50～1.0

0.30～0.60

≤0.030

1.00～1.50

0.50～1.00

SA335 P12

0.05～0.15

≤0.50

0.30～0.61

≤0.030

0.80～1.25

0.44～0.65

SA335 P22

0.05～0.15

≤0.50

0.30～0.60

≤0.030

1.90～2.60

0.87～1.13

SA335 P5

≤0.15

≤0.50

0.30～0.60

≤0.030

4.00/
6.00

0.45/
0.65

SA335 P91

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

SA335 P92

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

0.04～0.09

0.03～0.07

DIN 17175

ST45.8/Ⅲ

≤0.21

0.10～0.35

0.40～1.20

≤0.040

≤0.30

15Mo3

0.12～0.20

0.10～0.35

0.40～0.80

≤0.035

0.25～0.35

13CrMo44

0.10～0.18

0.10～0.35

0.40～0.70

≤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

≤0.015

EN1021 6-2

15NiCuMoNb5-6-4 (WB36)

≤0.17

0.25～0.50

0.80～1.20

≤0.025

≤0.020

≤0.30

0.25～0.50

0.50～0.80

1.00～1.30

≤0.05

0.015～0.045

Characteristics and Properties

Excellent High-Temperature Strength: It retains a significant portion of its room-temperature strength even when exposed to temperatures up to 580-600°C. This prevents deformation or failure under internal pressure and structural load.
Superior Creep Resistance: Creep is the slow, time-dependent deformation of a material under constant stress at high temperatures. 12Cr1MoVG exhibits excellent resistance to creep, ensuring dimensional stability and preventing rupture over the designed lifespan of the boiler (often decades).
Good Oxidation Resistance: The chromium content forms a stable, protective oxide layer (Cr₂O₃) on the surface, which significantly slows down further oxidation (scaling) in steam and flue gas environments.
Enhanced Thermal Stability: The microstructure of the steel remains stable during long-term exposure to high temperatures, preventing undesirable phase changes that could lead to embrittlement or strength loss.
Good Organizational Stability: The alloy maintains a fine, stable carbide distribution after proper heat treatment, which is crucial for its long-term performance.

Chemical Composition

Carbon (C)0.08 - 0.15
Silicon (Si)0.17 - 0.37
Manganese (Mn)0.40 - 0.70
Chromium (Cr)0.90 - 1.20
Molybdenum (Mo)0.25 - 0.35
Vanadium (V)0.15 - 0.30
Phosphorus (P)≤ 0.025
Sulfur (S)≤ 0.025
Nickel (Ni)≤ 0.25
Copper (Cu)≤ 0.20

12Cr1MoVG tubes are exclusively used in critical high-temperature sections of:

Superheater and Reheater Tubes in Power Plant Boilers: These are the sections where saturated steam is further heated to become superheated steam and where steam is reheated after passing through a high-pressure turbine. They operate under the most extreme temperature and pressure conditions in the boiler.
High-Temperature High-Pressure Pipelines: Used for main steam lines and other piping systems that transport superheated steam within power plants.
Heat Exchanger Tubes in Petrochemical Industries: In facilities where processes involve high temperatures and pressures, such as in hydrocrackers and reformer furnaces.

Company Details

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Manufacturer,Trading Company 
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Year Established:

2014 
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Total Annual:

30000000-50000000
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Employee Number:

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Wuxi Hengxin Zhicheng International Trade Co., Ltd. is a professional supplier and stockist specializing in seamless steel pipes and precision steel tubes. With years of experience in the steel industry, we are committed to providing high-quality steel pipe products and customized solutions to meet ... Wuxi Hengxin Zhicheng International Trade Co., Ltd. is a professional supplier and stockist specializing in seamless steel pipes and precision steel tubes. With years of experience in the steel industry, we are committed to providing high-quality steel pipe products and customized solutions to meet ...

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