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15crmog High-Pressure Boiler Tube

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15crmog High-Pressure Boiler Tube

MOQ： 1 PCE
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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

15crmog High-Pressure Boiler Tube

15CrMoG is a chromium-molybdenum (Cr-Mo) alloy steel tube specifically designed for high-temperature and high-pressure applications in power generation, petrochemical, and industrial boiler systems. As a seamless steel tube, it conforms to strict international standards, including GB 5310 (China), ASTM A335 (USA), and EN 10216-2 (Europe), ensuring reliability in critical environments. The "G" in its designation denotes its use in high-pressure boiler systems, highlighting its suitability for transporting superheated steam, hot water, and other high-temperature fluids under extreme conditions.

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级	≥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

Chemical Composition and Mechanical Properties

The exceptional performance of 15CrMoG stems from its optimized chemical composition:

Carbon (C): 0.12-0.18% - Provides fundamental strength and hardness.
Chromium (Cr): 0.80-1.10% - Enhances oxidation and corrosion resistance at elevated temperatures.
Molybdenum (Mo): 0.40-0.55% - Improves high-temperature strength and creep resistance.
Other elements like Silicon (Si), Manganese (Mn), Phosphorus (P), and Sulfur (S) are controlled to ensure weldability, toughness, and purity.

Mechanical Properties:

Tensile Strength: ≥440 MPa
Yield Strength: ≥295 MPa
Elongation: ≥22%
These properties ensure structural integrity under high internal pressures and mechanical loads.

Manufacturing Process

15CrMoG tubes are manufactured using a seamless process, typically hot extrusion or rotary piercing, followed by cold drawing to achieve precise dimensions and superior surface quality. Key steps include:

Smelting: Electric arc furnace refining with secondary refining (e.g., ladle furnace) ensures low impurity levels and homogeneous composition.
Heat Treatment: Normalizing (at ~900-960°C) and tempering (at ~680-730°C) optimize the microstructure, enhancing toughness and stress relief.
Testing: Each batch undergoes rigorous non-destructive testing (ultrasonic, eddy current) and hydrostatic tests to guarantee defect-free performance.

High-Temperature Performance and Microstructure

15CrMoG operates reliably in temperatures up to 550°C, owing to its stable microstructure and alloy design:

Creep Resistance: Molybdenum forms stable carbides, resisting deformation under prolonged stress and high temperatures.
Oxidation Resistance: Chromium forms a protective Cr₂O₃ layer, preventing scaling and degradation in steam environments.
Microstructure: The heat-treated structure consists of fine bainite or ferrite with pearlite, balancing strength and ductility.

Applications

15CrMoG is widely used in:

Superheaters and reheaters in coal-fired and biomass power plants.
High-pressure steam pipelines and headers in industrial boilers.
Heat exchangers and catalyst tubes in petrochemical industries.
Its durability reduces downtime and maintenance costs, making it a preferred choice for critical infrastructure.

Company Details

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Business Type:

Manufacturer,Trading Company 
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Year Established:

2014 
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Total Annual:

30000000-50000000
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Employee Number:

<300 
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Ecer Certification：

Verified Supplier 

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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https://www.hengxinzhicheng.com/

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