Seamless Steel Pipe from China Mainland

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2000 PCS
Supply Capability:
38000 PCS/month

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Product Description:

 Seamless Steel Pipe from China Mainland Details


4 - 100 mm

Section Shape:


Outer Diameter:

20 - 500 mm

Place of Origin:

China (Mainland)

Secondary Or Not:



Structure Pipe


Hot Rolled



Surface Treatment:


Alloy Or Not:

Is Alloy





BS 1387,BS 6323,GB 3087

Packaging & Delivery

Packaging Detail:wrapped in bundles with steel strips
Delivery Detail:within 35 days

 Seamless Steel Pipe from China Mainland  Specifications



Steel Grade

API 5L Grade B/ASTM A106B, BS 1387







End protection

plastic caps

Outside Coating

black painting, anti-corrosion oil, galvanized or as per required by customer

Production Capacity

Three mills with full production capacity, 400,000tons per year

Delivery time

20 days


independent import and export qualifications

Main market

Asia, India, Middle East, America, Europe

 Seamless Steel Pipe from China Mainland  Pictures

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Q:Heating system DN40 and DN32 welded steel pipe how to connect?
Is the wire: also called pipe thread connection, the malleable steel pipe fittings, malleable iron is the thread connection using DN40X32 diameter hoop.
Q:What's the difference between straight steel pipe and seamless steel pipe?
Observe whether there is weld seam. Welded pipe without treatment, there are obvious weld, there are bulges, like scars. A better point will shave off the weld, but there is a distinct difference between the eye and the eye. Also a small number of pipe will be processed after cold rolling, surface roughness and accuracy are relatively high, may be counterfeit seamless pipe sales. Careful observation will still show that the pipe wall will have a continuous spiral, metal luster slightly brighter, that is, the original welding seam, metallographic structure and other parts of the difference. To tell the truth, the layman would have to observe that it might be a little difficult.
Q:Difference between cold rolled steel pipe and common steel pipe
From the above point of view, the hot rolled steel pipe used in fluid transport, mechanical structure and other requirements of the size of the situation is not high, cold-rolled steel pipe used in precision instruments, hydraulic systems, pneumatic and other places demanding.
Q:What does cathodic protection of steel tubes mean?
There are two ways of cathodic protection: sacrificial anode, cathodic protection and impressed current cathodic protection.Sacrificial anode: connect a living metal or alloy to a protective metal to form a galvanic cell. The active metal replaces the protected metal to lose electrons so that the protected metal is not corroded.
Q:DN80 seamless steel tube, what is the standard thickness?
Generally speaking, the diameter of the pipe can be divided into outer diameter, inner diameter and nominal diameter. Tubes are made of seamless steel tubes. The outer diameter of the tubes is indicated by the letter D, followed by additional outer diameter dimensions and wall thicknesses such as seamless steel tubes with an outer diameter of 108.
Q:Why seamless steel pipe called seamless steel pipe?
Seamless steel pipe is a hollow section, without the joint round, square, rectangular steel. Seamless steel tubes are made of ingots or billets made by piercing and are then made by hot rolling, cold rolling or cold casting. Seamless steel pipe with a hollow section, as pipe conveying fluid, compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, bike frame and construction using steel scaffolding.
Q:Why should the weak electricity be pre buried with galvanized steel pipe?
Galvanized steel pipe mainly because of anti-interference and electrical connectivity, to prevent other strong magnetic strong signal interference weak signal, while in the electrical connection, galvanized steel pipe can be directly connected to the bridge.
Q:How do you solder purple copper plate and steel tube?
The copper plate and the steel tube are brazed by brazing or argon arc welding.
Q:What do you mean by "SC" in welded pipe SC200? What's the diameter of 200?
SC in principle, it should be called water gas pipe, also called thick wall steel pipe;
Q:The outer circle of a seamless steel pipe 50 head into the outer circle of the 40 to close
According to the metal processing performance, pipe size, quality requirements, as well as investment and benefits to choose different processing methods and corresponding auxiliary processes. The basic process of cold rolling of cold drawn pipe are: (1) tube feeding, the pipe material for hot-rolled finished or semi-finished tube, pipe extrusion pipe and welded pipe; (2) pipe material preparation, including inspection, bundling, pickling, cleaning, washing, drying, neutralization, grease and so on; (3) cold processing (cold or cold); (4) finished finishing finished including heat treatment, straightening, sampling, end cutting, inspection (manual inspection and various testing), pressure test, oiling, packaging and warehousing etc.. Different products are refined and the content varies.

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