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Hebei Huayang Steel Pipe Co., Ltd. was established in 2005 with fixed assets of RMB 1.2 billion. In 2024, Hebei Huayang Steel Pipe Co., Ltd. was ranked 69th among the top 100 private enterprises in Hebei Province, China and 57th among the top 100 manufacturing enterprises. Boiler pipes are piping made from chromium molybdenum alloys for high-temperature applications. They can be seamless or ERW, but the former is more popular due to its higher pressure/temperature resistance.

X60 OCTG Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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Oil Line Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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Carbon Steel Seamless OCTG Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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GR.B Casing Tube
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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API 5L Oil Tubing
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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Api 5l Boiler Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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ASTM Boiler Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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Carbon Round Boiler Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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Boiler Seamless Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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Carbon Boiler Pipe
Brand: Huayang
Origin: China
Diameter: 76mm-1442mm
Thickness: 2.5mm-50mm
Material: carbon steel
Standards: national standard, American standard, European standard, British standard, etc.
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Why Choose Us?

Fully Equipped

Huayang currently has 17 new automated steel pipe production lines and an advanced testing center that can conduct various physical and chemical tests on steel pipes.

Customized Solutions

We provide steel pipe processing services and provide customized solutions such as customized pipe sizes, materials and specifications to meet specific customer requirements.

Strong Strength

Hebei Huayang Steel Pipe Co., Ltd. was established in 2005 with a registered capital of RMB 500 million, covers an area of 600,000 square meters, has more than 600 employees, annual sales revenue of nearly RMB 10 billion, and an annual production capacity of 2 million tons.

Production Market

Our products are exported to more than 80 regions including Southeast Asia, the Middle East, South America, Europe and the United States, and "Huayang" brand steel pipes have won a good reputation at home and abroad.

Type of Boiler Pipes

Water-Tube Boiler Tubes:

In a water-tube boiler, water flows through tubes that are heated externally by hot gases. Fuel burns in the furnace, producing hot gases that heat the water in the tubes to create steam. Smaller water-tube boilers have the furnace separated from the heating tubes, while larger industrial boilers use water-filled tubes that form the furnace walls to produce steam. These boilers are ideal for high-pressure applications.

Fire-Tube Boiler Tubes:

In a fire-tube boiler, hot gases from a flame pass through one or more tubes surrounded by water. Heat transfers from the gases through the tube walls to the water, eventually producing steam. This type of boiler was widely used in horizontal locomotive engines. It features a tubular structure with a firebox on one end and a cylindrical container to hold the fire tubes. The firebox has an open base for the fuel grate, often extending outward to create a rectangular or tapered design for better heating efficiency.

Thickness Tolerance of Boiler Pipe

Wall thickness	Tolerances a
≤ 0.157	-1.2
> 0.157 to < 0.948	+ 0.150t / – 0.125t
≥ 0.984	+ 0.146 or + 0.1t, whichever is the greater
≥ 0.984	– 0.120 or – 0.1t, whichever is the greater

Heat Treatment Method of Boiler Pipes

Quenching

Hardening, also called quenching, is that high pressure boiler pipe is heated evenly to the appropriate temperature, then quickly immerse in water or oil for rapid cooling, and cooling in the air or in the freezing zone. So that the high pressure boiler pipe can obtain the required hardness.

Tempering

High pressure boiler pipe will become brittle after hardening. And the stress caused by quenching can make the high pressure boiler pipe tapped and broken. The tempering method can be used to eliminate brittleness. Although the hardness of high pressure boiler pipe is lighter reduced, its the toughness can be increased to reduce the brittleness.

Annealing

Annealing is the method to eliminate the internal stress of high pressure boiler pipe. The annealing method is that the steel parts need to be heated to the critical temperature, then put in dry ash, lime, asbestos or closed in the furnace, then let it cooling slowly.

Ultimate Tensile Strength of Boiler Pipe

The ultimate tensile strength of API 5L Boiler Pipe refers to the maximum stress or load that the steel pipe can withstand before it breaks or fails. It is a crucial property that determines the pipe's ability to resist tensile forces, which are essential in applications such as oil and gas transportation, where the pipes are subjected to high internal pressures and external loads.

API 5L X70 steel is classified as a high-strength low-alloy (HSLA) steel, which means it has a higher strength-to-weight ratio compared to conventional carbon steels. The "X70" designation in the API 5L specification indicates that the minimum yield strength of the steel is 70,000 psi (483 MPa). However, the ultimate tensile strength of API 5L Boiler Pipe is typically higher than the yield strength and falls within the range of 70,000 to 80,000 psi (483 to 552 MPa).

Impact Toughness of Boiler Pipe

Impact toughness is a measure of the pipe's ability to absorb energy during sudden or abrupt loading conditions, such as those encountered during transportation, installation, or accidental impacts.

For API 5L Grade B pipes, the minimum impact toughness requirement is 27 J (20 ft-lbs) at 0°C (32°F) when tested using the Charpy V-notch impact test.

This property is crucial in ensuring the pipe's resistance to fracture under impact loads, particularly in colder environments where materials tend to become more brittle. Factors influencing the impact toughness of Grade B pipes include chemical composition, heat treatment, and manufacturing processes.

Usage of Boiler Pipe

Energy Generation:
Boiler pipes are fundamental in energy generation processes. They carry water which is heated to produce steam. This steam is then used to drive turbines connected to generators, thus generating electricity. For example, in a coal - fired power plant, the boiler pipes are exposed to high - temperature combustion gases, transferring heat to the water inside to create high - pressure steam for energy conversion.

Electric Power Plants:
They are designed to withstand extreme temperatures and pressures. The pipes ensure a continuous supply of high - quality steam to the turbines, which is vital for the efficient operation of the power plant. Different types of power plants may use boiler pipes made of various materials depending on the operating conditions, such as high - alloy steels in high - temperature applications.

Steam Boilers:
The boiler pipes are arranged in a way to facilitate the circulation of water and the collection and distribution of steam. In industrial steam boilers, for instance, the boiler pipes help in heating water to generate steam for industrial processes like sterilization in the food industry, powering machinery in manufacturing plants, or providing heat for chemical reactions.

Petrochemical Industry:
Boiler pipes transport the steam to different parts of the petrochemical plant. They need to be resistant to corrosion from the chemicals present in the petrochemical environment. For example, in an oil refinery, boiler pipes supply steam for processes like separating different components of crude oil through distillation columns, and their reliable operation is essential for the overall production and profitability of the refinery.

Other Services

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FAQ

Q: What is the use of boiler pipe?

A: Boiler tubes are seamless tubes and are made of either carbon steel or alloy steel. They are widely used in steam boilers, for power generation, in fossil fuel plants, industrial processing plants, electric power plants, etc. Boiler tubes can either be medium-pressure boiler pipe or high-pressure boiler pipe.

Q: Do boiler pipes leak?

A: As the water runs around the system, it can pick up this debris and return it to your boiler. The older the system, the more likely you are to have issues with corrosion, which in turn can lead to your boiler leaking water from the bottom. Unfortunately, many people don't know corrosion is there as it can't be seen.

Q: Do boiler pipes get condensation?

A: Sweating pipes are often confused with plumbing leaks, but in reality the 'sweat' on a pipe is actually due to condensation. When the pipe itself is considerably colder than the air in the room, then humidity in the air will collect on the pipe, creating moisture.

Q: Do boiler pipes freeze?

A: In a modern boiler, your condensate pipe is the part that will most likely freeze during winter. A condensate pipe carries wastewater formed during the condensing process. Usually, this plastic pipe runs from the boiler to an outside drainage system or soakaway.

Q: Do boiler pipes get hot?

A: The mains water pipe is a vital part of a combi boiler system as it provides a constant flow of water to the boiler, which then gets heated and distributed throughout your home to ensure that the system can quickly and efficiently provide hot water & heating whenever you need it.

Q: What material is used for boiler pipes?

Q: What size are boiler pipes?

A: Gas pipes can vary in size (15mm, 22mm, 28mm or 35mm) depending on the distance between the boiler and the meter, the boiler manufacturer and the type of boiler.

Q: What is the yield strength of API 5L boiler pipe?

A: This API 5L boiler pipe Material is 77000 PSI while their minimum yield strength is 65000 PSI.

Q: What are the mechanical properties of API 5L boiler pipe?

A: API 5L grade X52 (L360 pipe) the yield strength minimum at 52220 Psi 360 Mpa, it's the meaning that we call this grade in the API 5L X52 or L360. Tensile strength is 66700 Psi and 460 Mpa. X52 performance is better than Grade X46, X42, and Grade B.

Hebei Huayang Steel Pipe Co., Ltd is one of the most professional boiler pipe manufacturers and suppliers in China, providing high quality customized products with low price. We warmly welcome you to wholesale cheap boiler pipe from our factory.

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