High Quality Seamless Steel Tubes For Hydraulic Pillar Service

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China Main Port
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TT or LC
Min Order Qty:
20M.T. m.t.
Supply Capability:
5000 Tons Per Month m.t./month

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Product Description:

Specifications of High Quality Seamless Steel Tubes for Hydraulic Pillar Service




1.Carbon steel pipe: ASTM A106,A53, ASTM A179, ASTM A192,DIN17175 ST45.8 ST35.8


2.Alloy steel pipe: ASTM A335,ASTM A213


3.Stainless steel pipe: ASTM A312,ASTM A213


4.Line pipe and cashing pipe: API5L ,API 5CT


Out Diameter:


1/8 – 30 inch (10.3-762mm)


Wall Thickness:


0.049” – 2.5” (1.24- 63.5mm)




Random Length, Fixed Length, SRL, DRL


Steel Grade:


API 5L: GR B, X42, X46, X56, X60, X65, X70


ASTM A53/A106: GR A, GR B, GR C




ASME SA192: SA192


ASME SA209M: T1, T1a


ASME SA210: GR.A-1, GR.C


ASME SA213: T2, T5, T9, T11, T12, T22


ASME SA335: P2, P5, P9, P11, P12, P22, P91


DIN17175:ST35.8, ST45.8, 15Mo3, 13CrMo44


Usage/Application of High Quality Seamless Steel Tubes for Hydraulic Pillar Service


Applicable to the general structure, mechanical structure, Low, medium and high pressure boiler,


transportation for gas, water, oil and natural gas, tubes for heat exchanger and chemical fertilizer


equipments, for hydraul hydraulic pillar service etc..




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Q:What's the difference between steel pipe and pipe fittings?
Steel: steel pipe is a hollow steel strip, used as pipe conveying fluid, such as oil, gas, water, gas, steam, in addition, the bending and torsional strength of the same, the weight is light, so it is widely used in the manufacture of machinery parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q:Seamed steel pipe seamless steel pipe, carbon steel pipe, galvanized pipe, four how to distinguish between
Major use differentiation:1, seamed tube can withstand the maximum operating pressure is generally less than 20 kg, which is the most secure use. It is generally used in water, gas, compressed air and other low-pressure fluid;2 seamless tube can withstand ultra-high pressure, of course, its wall thickness will also increase, which needs to be designed according to pressure requirements. It is generally used in high-pressure oil pipes, boiler tubes and other high temperature and high pressure equipment. There are also seamless tubes for structural purposes, depending on the design requirements.3, there are some seamed steel pipe seamless treatment tube, it is the weld annealing treatment, eliminate the residual stress of the weld, the weld and base material, the pressure range of basic and seamless pipe is. May also consider the use of.4, of course, the market also has some use overall heating after drawing steel pipe joints or mandrel rolling seamless steel pipe, mainly in small size, only in the shape of this kind of pipe belongs to the seamless tube, it is not very good
Q:What are the main aspects of precision steel tubes?
Its inside and outside diameter size can be accurate to less than 0.2mm, and it is widely used in the manufacture of precision machinery parts and engineering structure when the bending resistance and torsion strength are the same. It is also used to produce all kinds of conventional weapons, guns, shells, bearings and so on.
Q:How long are the seamless tubes? Are they six meters long?
The length of the seamless tube is 3000~12000mm, including 6 meters.
Q:What does "spiral welded steel pipe" DN325*10 mean?
Labeling is wrong: it should be said for 325*10, the diameter of pipe wall thickness of 10, 325;For example, the nominal diameter shall be: DN300.
Q:What is the diameter of the steel tube DN20?
Pipe installation without conversion, because in the same standard in the same diameter connecting dimensions of the same nominal pressure level of the same, and the same material have the same diameter, the nominal diameter of the purpose is to facilitate connectivity
Q:What connections are there for concrete filled steel tubular column foundations?
The Liang Duan local widening joint is achieved by the continuous construction of longitudinal steel bars around the steel tube. At the beginning of the creation of additional stirrups should be widened longitudinal reinforced wrap, Liang Duan local widened joints of steel reinforced concrete beam and corbel overlapping transition zone can transmits beam internal force, bending steel bracket in both shear and participation. The node form is used in building engineering in Xiamen. The force transfer path of this joint is clear and reliable, with less welding on site and more convenient for construction. This kind of node passes shear stress through the bracket, and the stress is more concentrated.
Q:Why seamless steel pipe called seamless steel pipe?
Steel pipe is divided into seamless steel pipe and welded steel pipe two kinds: seamless steel pipe is ingot or tube billet, through the perforation made capillary, and then by hot rolling, cold rolling or cold drawn made, so seamless steel pipe is divided into hot-rolled and cold drawn two categories. Welded steel pipe is through the steel plate or steel strip after bending forming, and then welded to make, according to the form of weld is divided into longitudinal welded pipe and spiral welded pipe two kinds. It is obvious that seamless welded pipe has no weld and that welded steel pipe has weld line.
Q:Does the seamless steel pipe need rust removal?
The use of solvent, emulsion cleaning steel surface, in order to achieve the removal of oil, grease, dust, lubricants and other similar organic compounds, but it can not remove rust, scale, welding of steel surface, so the production in anti-corrosion only as an auxiliary means.
Q:What's the difference between a cracked carbon steel tube and a liquid carbon steel tube?
If the material is the same, the process is different from the test.
Perfect detection system, our physical & chemical laboratory is equipped with test facilities included spectrum detection and metallographic analysis etc. The company has successively passed ISO9000 quality system, the American Petroleum Institute API, and also earned the environment healthy license, national special equipment manufacturing license.

1. Manufacturer Overview

Location Henan, China
Year Established 2001
Annual Output Value 800,000Tons
Main Markets Europe and the United States; Canada; India; South etc.
Company Certifications API 5L; API 5CT; GB/T19001-2000 idt ISO9001:2000

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Qingdao; Lianyungang
Export Percentage 50% - 60%
No.of Employees in Trade Department 1000-1100 People
Language Spoken: English; Chinese; Spanish
b)Factory Information  
Factory Size: Above 423,000 square meters
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average