High-quality Carbon Seamless Steel Pipe For Boiler 20#CNBM

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10 pc
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30 pc/month

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Product Description:

Quick Details


3 - 60 mm

Section Shape:


Outer Diameter:

21.3 - 1220 mm

Secondary Or Not:



fluid pipe,boiler pipe, structural pipe, oil/gas/water pipe etc


Hot Rolled


ISO9001-2000, ISO14000, ISO18000 , API 5L

Surface Treatment:

Painted, Oiled, galvanized or phosphate etc

Special Pipe:

API Pipe

Alloy Or Not:

Is Alloy


Hot rolled or cold rolled

Special pipe::

API/ ASME/thickwall/oil/gas/water pipe



Treatment of two ends::

Beveled end , plain end etc


Bai Chuan

Third Party Inspection::

BV, SGS etc.



Other Material::

10#, 20#, 16Mn, Q345 etc

Material Type::

Carbon steel/ Low alloy steel

Producing standard::

American/Japanese/ German/ Britain/ Chinese standard


A53(A,B),A106(B,C),A210,API J55,St37,STPG42,A53-A369,API J55-API P110,ST35-ST52


BS EN10296,JIS G3452-2004

1. Out Diameter:


2. Wall Thickness:


3. Length:


4. Producing Standard:

  • American ASME B36.10M, ASTM, API 5L, API 5CT

  • Japanese JIS

  • German DIN

  • Chinese GB

  • BS standard

5. Main Material:

(Carbon Steel & Low Alloy steel)

  • ASTM A53, A106, A210, A252, A333 etc;

  • X42, X46, X52, X60, X65, X70 etc;

  • JIS STPG42, G3454, G3456 etc;

  • German St37, St42, St45, St52, DIN1626, DIN17175

  • Chinese 20#, Q345, 16Mn etc.

6. Special specifications:

Available according to customer’s requirements and quantity.

7. End Shape:

Beveled end , plain end, varnished, or adding plastic caps to protect the two ends as per customer’s requirements.

8. Surface treatment:

Painted, Oiled, galvanized, phosphate etc.

9. Usage:

  • Widely used in the mechanical treatment field, petrochemical industry, transport and construction field

  • Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;

  • The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc

  • Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc

10. Certificates:

ISO9001-2000, ISO14000, ISO18000, API 5L certificate

11. Third party inspection:

Welcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products.

12. Pictures:

our producing flow chart, our factory, production line, inspecting equipments, our products are listed below for your reference.

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Q:Water, gas, steel pipes, thick steel wire means?
Often used in water, heating, gas, compressed air and vacuum lines. Can be used in pressure gauge pressure of 0.6 MPa (6 atm) steam pipe and condensate pipeline below, can also be used for conveying non erosive and non flammable and explosive media. Is divided into ordinary (working pressure is 1 MPa pressure gauge, 10) and strengthening (working pressure gauge is 1.6 MPa, 16 ATM) two. Galvanized white iron tube (galvanized iron tube). Non galvanized black iron pipe (black pipe).
Q:Which is better, galvanized steel pipe or stainless steel?
Most of the use requirements are to maintain the original appearance of the building for a long time. In determining the type of stainless steel to be chosen, the main consideration is the aesthetic standards required, the corrosivity of the atmosphere in the area, and the cleaning system to be adopted. However, other applications increasingly seek only structural integrity or watertightness. For example, the roof and side walls of industrial buildings. In these applications, the construction cost of the owner may be more important than the aesthetic, the surface is not very clean can also. The use of 304 stainless steel in a dry indoor environment is quite effective.
Q:What are the uses of welded steel pipes?
Low pressure fluid conveying galvanized steel tube (GB/T3091-1993) is also called galvanized pipe, commonly known as white tube. It is used for hot water, gas, air, oil, heating, steam, warm water and other generally low pressure fluid or other hot dip galvanizing (furnace welding or welding) steel pipe. The wall thickness of the steel pipe is divided into ordinary galvanized steel pipe and thick galvanized steel pipe. The end of the pipe is divided into non - threaded galvanized steel pipe and threaded galvanized steel pipe. The specification of steel pipe is expressed by nominal caliber (mm). The nominal diameter is the approximate value of the inner diameter. Usually used in inches, such as 11/2.
Q:What does seamless steel tube mean? What are the main uses? What are the classifications?
Electrical, gas, water, power, fluid, pipe.The main production process for hot rolling seamless steel tube (the main inspection):Tube preparation and check delta to billet heating, heating, rolling, perforated pipe, steel pipe and heat treatment, diameter (minus) Delta to finished tube straightening, finishing and inspection of delta (nondestructive, physicochemical, Taiwan inspection and warehousing)Main production process of cold rolled (drawn) seamless steel tube:Blank preparation, pickling, lubrication, cold rolling (drawing), heat treatment, straightening, finishing and inspection
Q:What's wrong with the 3PP anticorrosive steel tube?
PP and PE are similar in processability, and the 3PE coating can be used to produce 3PP coatings without the need for a special 3PP coating line. However, the difference between PP and PE materials makes the 3PP and 3PE coatings show different properties, which can be applied to different environments. The advantages of 3PP coating on some properties make it possible to play an important role in the field of 3PE coating. Therefore, many foreign pipeline projects use 3PP anticorrosive coating.
Q:Why can't stainless steel be put together with carbon steel tube?
Stainless steel can not be put together with carbon steel because of galvanic corrosion
Q:What's the difference between the fastener type steel pipe scaffold, the floor type steel pipe scaffold and the overhanging type steel pipe scaffold?
Classification is not the only way, fastener type steel pipe scaffolding is divided by force, and the latter 2 are classified according to the structure.
Q:What's the difference between No. 20 steel pipe and 27SiMn Steel Pipe?
Cold plastic deformation and for bending, rolling, bending and hammer arch processing, arc welding and contact welding welding performance is good, when the thickness is small, prone to strict requirement of shape crack or complex shape parts. The cold or normalizing condition of cutting is better than that of annealing. It is generally used to make the material with little force and high toughness.
Q:Hot galvanized steel pipe for use?
Hot galvanized pipe: in order to improve the corrosion resistance of steel pipe, galvanized steel pipe. Galvanized steel pipe hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, zinc plating cost is low, the surface is not very smooth.The hot-dip galvanized pipe is an alloy layer that causes molten metal to react with the iron matrix, thus combining the substrate with the two coating. Hot dip galvanizing is the first steel pickling, in order to remove iron, steel pipe surface after pickling, cleaning by ammonium chloride or zinc chloride solution or ammonium chloride and zinc chloride aqueous solution tank, and then into the hot dip tank. Hot galvanizing has the advantages of uniform coating, strong adhesion, long service life and so on. A complex physical and chemical reaction is formed between the steel tube matrix and the molten plating solution to form a corrosion resistant structure with a tight zinc - iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, it has strong corrosion resistance.
Q:What does "1.5" steel tube mean?
1.5 inch [1 1/2 steel pipe, outer diameter 48.3mm, 1.5 inches, refers to the pipe bore is approximately the inner diameter (25.4x1.5 = 38.1mm). [DN40] the specific parameters of the steel pipe are as follows;The average wall thickness is: 3.5mm;The minimum wall thickness is 3.06mm,Nominal diameter is 40mm,External Jing is 48.3mm,

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