ASTM/API Carbon Seamless/welded 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:



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 WN50 (B) -25 RF S=6 specific points
WN indicates that butt welding 50 means nominal diameter DN (B means B series diameter is 57) - 25 is pressure, new standard is 25 kg pressure, old standard is 250 kg pressure RF, sealing surface protrusion S=6 flange diameter thickness is pipe thickness
Q:When the toilet is fitted with flanges, is the rubber side of the flange facing the floor or the toilet? The installation is more reasonable
The rubber side of the flange is toward the toilet, and this has to be done by the master of water and electricity, or by the people who sell the toilet. The flanges and the toilet do not have space, but it will take some time!In addition, after the toilet is loaded, all sides should be put on glass glue, to prevent leakage of dirty gas
Q:Flange specification PL80-1.6RF
RF is the code for sealing form, is the process of meaning.
Q:SolidWorks why can't the side flange be gray?
The side flange is the sheet metal command of the SW, so this command is optional only when the current part must be sheet metal.
Q:What is the silk flange?
Generally refers to the pipe, pipe connections, the commonly used way is divided into: silk and flange two. The screw thread is a screw thread connection; the flange is to weld the two end of the connecting pipe on the convex ring, drill a few holes, and penetrate the bolt in the hole to connect.
Q:The soul of darkness, how about the souls on the slopes beside the cursed frogs outside 3 flanges?
Extinguish the flames of the 3 towers; open the doors; there is a way to go there
Q:Are couplers and flanges the same thing for optical fiber? Five
Fiber coupler is removable between the optical fiber and optical fiber (active) connection device, it is the two fiber surface precision docking, so that the optical output of the light energy to maximize the coupling to the receiving optical fiber, and the effect of intervention on the system caused by the optical link to minimize the.
Q:What are the advantages of a flanged plunger valve?
Advantages of flanged plunger valves:In 1, the flange valve in the plunger and the seal ring used between the interference fit, by adjusting the gland in the flange bolts, the lateral force and the valve body sealing ring compression product in cylindrical hole surface and the plunger seal, thus ensuring the sealing performance of the valve, to prevent the internal leakage, and valve opening moments small, can realize the rapid opening and closing the valve;2, because the sealing ring adopts the strong rebound resistance and the abrasion resistance of the non-toxic new sealing material, has a long-term high temperature, high pressure without losing elasticity, so the sealing performance is reliable and durable.Extension of knowledge point:Flange plunger valve by the valve body, valve cover, stem, plunger, hole frame, ring, hand wheel and other components. When the hand wheel rotates, the plunger is driven to move up and down in the middle of the hole frame through the valve stem to complete the opening and closing function of the valve. Currently, flanged valves are widely used in petroleum, chemical, chemical, gas, gas, liquefied petroleum gas, HVAC and general industries
Q:How high is the flange flange?
You need to understand the flange protruding this piece is why, suddenly face RF, itself protruding surface it is used to put a car washer, water bursting on the surface, to seal gasket and better. Flange strength requirement is flange thickness of C, not protruding out of the thickness, too thick, coupled with the gasket, exposing a large gap, easy to rain or water rusty.
Q:How many kinds of flanges are there?
4. according to the material for making flangesAccording to the flange material can be divided into: cast iron flange, steel flange, plastic flange, copper flange and so on.At the same time, there are 4 standards for flanges in our country, namely, versatility and specificity. Each flange standard is not limited to the scope of this trade, but it is crossed and permeated. In order to gradually unify the flange standard, the National Machinery Committee has formulated a series of flange standard, where GB/T9112~9124 - 2000 "steel pipe flange" series standard is quite comprehensive, but this does not mean the national standard to replace the other flange standard. HG/T20592~20635 - 2009 "steel pipe flanges, gaskets and fasteners" is adjusted and revised based on the original HG/T20592~20635 - 1997, which is set by European and American system system respectively in the preparation of pipe flange standard system, clear and operational use.

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