seamless black steel pipe

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Product Description:

Quick Details

· Material: Carbon Steel

· Technics: WELDING

· Type: pipe

· Place of Origin: China (Mainland)

· Model Number: 2-80mm

· Brand Name: CNBM-CMAX

· Connection: Welding

· Shape: Equal

· Head Code: Square

Packaging & Delivery

Packaging Details:

in wooden case or pallet or according to customers requirement.

Delivery Detail:

20 days


We offer steel pipes and pipe fittings with high quality and low price.

Main Markets:

North America

South America
Southeast Asia
Western Europe

Product Description

Quick Details


2.5 - 80 mm

Section Shape:


Outer Diameter:

21.3 - 610 mm

Place of Origin:

China (Mainland)

Secondary Or Not:



Gas Pipe


Hot Rolled



Surface Treatment:


Special Pipe:

API Pipe

Alloy Or Not:


seamless steel pipes:



A106(B,C),A53(A,B),API J55,API K55,API L80,St37-2,St45,A53-A369,API J55-API P110,ST35-ST52


API 5L,ASME B36.19M-1985,ASTM A106-2006,GB 3087-1999,API,ASTM,GB

Packaging & Delivery

Packaging Detail:


Delivery Detail:



1.Seamless pipe professor
2.MTC,ISO,API certificate
4.On time delivery
5.Big store,excellent package.


1.Seamless pipe professor
2.MTC,ISO,API certificate
4.On time delivery
5.Big store,excellent package.

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Q:Flange specification PL80-1.6RF
For more flange types and sealing surfaces, please learn HG20592-1997 and HG20615-1997 standards
Q:Where is the difference between the double flange limit expansion joint and the double flange transmission joint?
Advantages: a large amount of expansion, convenient installation. Features: applicable to both ends of the upper flange connection pipe
Q:I am learning machinery, there is a book in the book, LAN type,
According to the different grades of pressure, the flange pad also has different materials, from low pressure asbestos pad, high pressure asbestos pad to metal padFlange connection is easy to use and able to bear greater pressureIn the industrial pipeline, using flange connection is very extensive. Within the family, the small diameter of the pipe and low pressure, see flange connection. If a boiler room or a production site, everywhere is the flange connection of pipes and equipment.
Q:Shandong 03 fixed ventilation pipe flange production, installation, how to take charge?
The first chapter of the corresponding item to support.- fixed number: 9-546~749The eleventh chapter plastic ventilation pipe and components production and installationFour, the wind pipe production and installation projects include pipe fittings, flanges, reinforcement box, but does not include hanging support bracket, hanging support bracket, using the first chapter of the stent project.- fixed number: 9-590 interface and flexible expansion joint flange9-589 flexible interface and expansion joint without flange (pay attention to the difference between two quotas)The twelfth chapter of glass steel ventilation ducts and parts installationThree, glass steel ventilation pipe installation project, including three links, elbow, tube, pipe fittings and Tianyuandifang installation flange reinforced frame and the hanging bracket installation, not including the cross wind landing bracket. The landing bracket shall be calculated in accordance with the first chapter of the support project.- according to the above description, flange manufacture and installation has been included in the amount of wind control stability.
Q:WF face flangeI'd like to ask what flange form WF is,
The pattern of the flange sealing surface: plane (FF), sudden surface (RF), (MF), convex concave groove (TG) and ring junction (RJ). So far, there is no other form of sealing surface, is the concave and convex surface (MF) write backwards,
Q:What's the thickness tolerance of neck flange?
Technical specification for GB/T15530.8-1995 copper alloy and composite flangesDifferent standards require different tolerances. You can choose what standards you want
Q:What's the difference between a clip flange and a flange?
Flanged butterfly valves are flanged on the valve and bolted to both ends of the valve to connect the flanges to the pipe flanges. Sealing surface wear resistance, long service life. The utility model has the advantages of unique structure, flexible operation, labor saving, convenience, and high and low pressure without the pressure of the medium
Q:What's the meaning of the middle flange? What's the difference between the flange and the flange?
for example, the flange valve flange has three, in the channel on the side flange, in the middle to connect the valve cover for the flange in the middle flange.
Q:How many kinds of flanges are there?
3. according to the structure of the flangeThe flange in the form of the structure can be divided into the whole neck flange, threaded flange, flange, butt welding and hubbed flange hubbed socket welding flange, butt welding ring loose plate flange, welding ring loose plate flange, flange ring loose plate flange, flange cover etc.. Type and code of flange are shown in the following table.Table flange type codeFlange type, flange type code, flange type, flange type codePL Th threaded flange welding plate flangeHubbed flange butt welding flanges PJ/SE SO ringWN welding neck flange ring loose flange PJ/RJIntegral flange IF flange cover BLSocket welded flange, SW lining, flange cap BL (S)
Q:Where can I buy Alkeran in Hongkong?
Alkeran in Hongkong Shi Yin shopping mall, Edward pharmacy can buy, the price is cheaper, I suggest you go to see

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