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boiler steel pipe

Boiler tubes often work under high temperature and high pressure, and the pipe flue water will undergo oxidation and corrosion in high temperature steam. Therefore, durable steel is required to have high strength, high oxidation resistance and good structural stability. In addition to chemical composition and mechanical Performance, the roots need to be hydrostatically tested, and flaring and flattening tests are required. Steel is delivered with heat treatment. In addition, there are certain requirements for the structure, grain size and decarburization of the finished steel. High-pressure boiler tubes belong to the category of seamless steel tubes.

How to choose a good quality boiler tube?

When choosing boiler tubes, look at the following to select a suitable and good quality tube.Look at the cross-section of the tube. A good quality seamless tube will have a smooth cross-section with no bumps or irregularities.Check the density of the pipe to know the percentage of impurities in the pipe. If the pipe shows a low density, avoid it!Check the surface of the boiler tube. A good quality boiler tube has a smooth surface. If a rough and uneven surface is found, you can be sure that the quality is not acceptable.Small diameter high pressure boiler tube surface defects affect the quality, mainly the generation of scrap.

Product Introduction of boiler steel pipe


Boiler tube,high pressure boiler tube, carbon steel tube, 

 alloy steel tube,Seamless steel tube

Boiler pipe,high pressure boiler pipe,  carbon steel pipe,  

alloy steel pipe,seamless steel pipe


GB5310-2008,ASTM SA106,ASME SA210,ASME SA213




Carbon steel grade:

ASTMA179,A192,A178 GR.C,A210 A1,ASTM A210 C,DIN 17175 ST35.8,


Alloy steel grade:

ASTM A213 (T2,T11,T12,T22,T9),ASTM A200 T5,ASTM A199 (T11,T22),

16Mn,Q345A,Q345B,Q345C,Q345D,Q345E,15CrMoG, 12CrMo,15CrMo,






Out diameter: 10mm~3050mm

Wall Thickness: 1mm~300mm

Length:1m~15m or customize

Surface treatment

Black painted, black varnish, transparent oil, hot galvanized, 

3PE,epoxy coating,BE,PE.HDPE,NACE etc.



 Standard export package,or as required






Steel pipe can be used in the pipeline, thermal technology equipment, 

industrial machinery, petroleum geological exploration, containers, chemical 

industry, and special purpose

(1) general boiler tube is mainly used to produce water wall tube, water pipe, 

superheated steam tube, locomotive boiler superheated steam pipe, large 

and small pipe and tube arch brick, etc.

(2) high pressure boiler tube is mainly used to manufacture high-pressure 

and ultrahighpressure boiler superheater tubes, reheater tube, airway,

 such as main steam pipe.

Use of boiler tubes

Boiler tubes can withstand temperatures up to 700°C and pressures up to 300 bar, and are therefore mainly used in energy equipment. They are most commonly used for steam pipes and steam boilers.
The use of boiler tubes is often determined by their additional properties. For example, acid-resistant boiler tubes are ideal for building installations that transport various chemicals because they are resistant to corrosion. On the other hand, heat-resistant boiler tubes do not deform even under the influence of high temperatures. In addition, their structural composition includes special steel alloys that minimize wear and tear.
Using thick-walled boiler tubes is worthwhile if we want to combine high strength with relatively low weight in the installation. They are also a good choice for installations where hot liquids need to be transported under pressure. Stainless steel boiler tubes are also often used. They are covered with an additional layer that protects them from corrosion, allowing them to be used in wet conditions.

Chemical composition of boiler steel pipe

Grade C Si Mn P S Cu
ASTM A36 0.25-0.290 0.28 1.03 0.04 0.05 0.2

Mechanical property of boiler steel pipe

Grade Yield Strength (MPa) Ultimate Tensile Strength (MPa) Elongation at Break (%)
ASTM A36 250 400 - 550 22

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lndustries Served

Every industry has its unique set of material specifications and needs. That’s why you can count on the exceptional experience and industry knowledge of the professionals at Kuaima Steel - Meeting the Exact Needs of Every Industry That Uses steel.

  • Machinery manufac- turing industry
  • Power Generation
  • Oil & Gas
  • Manufacturing
  • Construction
  • Ship Building
  • Automobile manufacturing
  • Pipe Fabrication

boiler steel pipe Outlet

We are a well known worldwide exporter of boiler steel pipe Qatar, Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Italy, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Philippines, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, China, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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