Steel Tube

Precision Steel Tubing

Precision Steel Tubes for the Automotive Industry An outstanding strength of SMP is its technical support and consulting service targeting at customized solutions for the Automotive Industry Automotive tubes with standard EN10305-1,material E255,delivery condition NBK 1. Precision seamless tubes...
Send InquiryChat Now

Precision Steel Tubes for the Automotive Industry An outstanding strength of SMP is its technical support and consulting service targeting at customized solutions for the Automotive Industry


Automotive tubes with standard EN10305-1,material E255,delivery condition NBK

1. Precision seamless tubes for automotive industry are made using the cold drawing process. Precision tubes are made from carbon steel from quality Bao Steel,XingCheng Steel,and HuaiSteel.

2. The tubes are high precision in tolerance,excellent surface brightness,no oxidization on the outer and inner walls after heat treatment,high cleanness of inside wall.

3. No deformation after cold bending,no crack after flaring and flattening.


Synopsis of Process Routing: 

Quality Carbon steel — Cold Drawn — Heat Treatment Without Oxidization (NBK Status) — Nondestructive Testing— Flushing The Internal Hole With Special Equipment Under The High Pressure —Dealing With Antirust Oil On Surface — Plastic Capping On Both Ends.

We are committed to our core competence of manufacturing corrosion resistant, high strength, nickel alloy, titanium and stainless steel tubing.


range consists of straight and coiled tubing in stainless steel, duplex stainless steel, titanium nickel and zirconium alloys. These precision tubes can be manufactured in either seamless, welded or welded and cold drawn process, depending on the alloy you require.


Our welded, welded and drawn tubes size range goes up to 38.1mm (1 1/2") OD. We can manufacture welded straight lengths up to 20m (65.6ft) and coiled tubes with orbital joints up to 10,000m (33,000 ft) long.


Our seamless tubes size range starts at less than 1mm (0.04") and goes up to 45mm (1 5/8") OD. We can manufacture seamless straight lengths up to 20m (65.6ft) and seamless coiled tubing from 6.35 mm (1/4") to 25.4 mm (1") OD.


supplies top quality high pressure tubing to a range of industries. Our products are particularly crucial in oil and gas extraction projects, as well as in commercial and military aerospace programmes.



High pressure tubing manufactured by Fine Tubes is used to help extract oil and gas in some of the most hostile downhole conditions including deepwater and sour oil well projects. These high performance tubes can be produced for low, medium, high and super high pressure applications.


Fine Tubes offers coiled and straight length tubing in a wide range of corrosion resistant austenitic, super austenitic, duplex and super duplex stainless steels. Various titanium grades and nickel alloys are also available. We cover a broad range of size specifications meeting the requirements of the oil and gas industry.


A wide range of wall thicknesses are sold, starting from 1.6mm (0.063”) outer diameter for precision instrumentation, chemical injection and monitoring applications on downhole tools. Sizes go up to 63mm (2.475") OD. Operating conditions can require our products to be rated up to 60,000psi operating pressure and with tensile strengths greater than 220ksi (1,515MPa).


Major players in both the oil and gas extraction and nuclear power industries rely on Fine Tubes for tubing to protect their control systems and instrumentation. Thousands of metres beneath the surface of the sea, Fine Tubes products are deployed in control units for hydraulic pumps, measuring devices and more.


Meanwhile, control and measuring devices that are critical in the nuclear and turbine islands of reactors also require our high performance tubes. Below is a summary of how Fine Tubes instrumentation tubing is used, the sizes available and materials used in its manufacture.


Seamless straight lengths of precision tubing are used for instrumentation that controls measuring devices and supplies hydraulic pumps and tools. The tubing is used in onshore control panels, topside processing facilities and subsea manifolds and templates up to 2,000m under the sea.


Control and instrumentation tubing is available from 1.6mm (0.063”) outside diameter for precision instrumentation and monitoring applications on drilling tools up to 63mm (2.475") OD. High strength stainless steel, duplex and super duplex stainless steel, titanium and nickel alloys are used in manufacture. Operating conditions can require our products to be rated up to 60,000Psi operating pressure and with tensile strengths greater than 220ksi (1,515 MPa).


The standard tubes are available in nominal 6m straight lengths or in coiled form. Coiled tubing reduces the number of couplings which can help lower installation costs and improve reliability. Our control and instrumentation tubes can be delivered with end caps for transport and protection from potential contamination during storage.



In the nuclear and turbine islands of nuclear reactors our instrumentation and control tubing encases equipment monitoring various factors such as pressure, temperature, density differences and fuel burn up rates. Fine Tubes supplies seamless nuclear instrumentation tubing in straight and coiled tube forms. The most common material used is various grades of specially specified stainless steel.



All high pressure tubing products supplied to the aerospace industry are hydraulic tubes. For further information on our products in this area, please refer to our page on hydraulic tubes.

Production process quality control: We use the domestic first-class drawing machine,the production process is controlled with high hardness alloy internal and external matrix,so the product dimensions tolerance and ovality are strictly controlled in high level.Through the first, middle and last process inspection to ensure product quality.


Inner and Outer Surface Cleaning: We adopt automatic inner surface cleaning machine, rotating brush cleaning and high pressure oil flushing to clean the inner and outer surface.The new steel tube production craftsmanship can effectively remove all particulate attached to the inner and outer surface of tubes and thus achieving the utmost surface cleaness and polishness.


Finished tube anti-rust oil plating: We adopt high pressure spray plating method, the antirust oil is plated by high pressure jet after ten passes of filtering and one pass of precipitation to safeguard the tubes’ outer and inner surface cleaness and polishness.



Automotive tubes are used for production of automotive steering systems,clutch system, braking system engine high pressure oil injecting tube,cardan shafts, shock absorbers and air springs, parts of the chassis, axle shafts, construction parts of chassis and axles, steering components, seats construction, bracing for dashboard.


To be used in hydraulic system,automobile and in the occasion where the high precision,brightness,cleanness and mechanical properties of the tube are required.



Automotive Tube diamensions for the automotive industry

Outside diameter ranges from 4 to 60 mm and wall thickness ranges from 0.5 to 7mm.

Delivery condition and heat treatment processing of precision tubes for the automotive industry


Delivery Condition

Heat treatment process

+C  Cold drawn/hard.After the last cold forming,no heat treatment.

+LC  Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing pass.

+SR  Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.

+A  After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.

+N  Normalized. After the last cold drawing process the tubes are annealed in a controlled atmosphere.

Length of precision tubes for the automotive industry

random length precision tubes in the range of 3 – 10 m

approximate length with tolerance +/-10 mm

tubes for the automotive industry also can be delivered as cut tubes according to customers’ requirment.

Marking of precision tubes and bundles of precision tubes

Marking of standard precision tubes is done according to standards or upon agreement by the InkJet system either in one spot or along the whole length of a tube. Bundle marking is done either by one or multiple labels with required data.

Surface protection of precision tubes for the automotive industry

Tubes are supplied with anticorrosion application. Internal surface and external surface are flushed with antirust oil.

Testing of precision tubes for the automotive industry

The mandatory tests for standard precision tubes are chemical analysis, tensile test, dimensional inspection and visual inspection.

Specific testing – acceptance testing certificate 3.1.B (3.1.A, 3.1.C).

Elective testing: flattening test or drift expanding test, roughness measurement and NDT to find longitudinal defects: eddy current inspection test,as a proof of tightness or leakage test by eddy current EN 10246-1.

Certificates for precision tubes

Certificates are issued according to standards, as an example we are showing: EN 10 204 (non-specified testing – 2.2, specified testing 3.1.B or 3.1.A, 3.1.C).

Competitive Advantage:

Certificate we awarded:TS 16949

Our typical customer: Continential Contitech,Benteler.

We have passed BMW’S review.

We have been cooperating with many auto parts manufacture,our tubes are widely used in BMW,Volkswagen,and other brands.

400 tons precision steel tubes stock capacity,this make our delivery time short and timely.


Tubes for Diesel Injection Lines

Diesel Injection Tubes for 2,500 bar and Even Higher Pressures Expectations tend to become more and more challenging in the automotive sector. Technical requirements as well as legislative constraints are strongly linked to higher injection pressures. Today’s market predictions project injection pressures rising up to more than 2,500 bar for cars while these might go beyond 3,000 bar in the case of heavy-duty vehicles.


Tubes for Stabilizers, Precision Steel Tubes for Side Shafts: Monobloc Tubular Shafts (MTS) and Welded Tubular Shafts (WTS) Precision Steel Tubes for Welded Tubular Shafts are endowed

with outstanding geometrical properties and delivered as high-quality Carbon, Manganese Boron or air hardening steel.

Dedicated wall thickness and eccentricity tolerances give way for excellent dynamic response as well as fatigue properties.

Precision Steel Tubes for Monobloc Tubular Shafts are designed either for quenching and tempering (C and CrMo-grades) or hardening processes (MnB-grades). Our steel material shows

well-defined microstructure and large deformation capacities perfectly suitable for any deformation process carried out at low temperature, just as needed for tapering and splining.


TS provides hollows for the cold drawing process for a large number of applications in the automotive, energy, and mechanical engineering industries.


In serving the precision tube industry we draw on our unique know-how regarding the cold drawing requirements of our customers.


Products and Solutions

TS offers high-quality hollows for precision tubes in a wide range of grades and dimensions, including unique long-length tubes. TS has a time-honored tradition of providing its customers with tubes for tailor-made engineering solutions.


Product Properties, Multiple grade options, A wide size range, Tight tolerances, Long lengths



Airbags, Diesel injection pipes, Gear shafts, Transmission & suspension components, Hydraulic cylinders, Ball bearing cages, Heat-exchanger tubes, Multiple sections, Various automotive and aircraft parts, And many more


Stamped precision tubes (For shock absorber of automotive)

Precision tubes (For shock absorber of motorcycle)

Mounted ring (For shock absorber of automotive)

Bright precision tubes (For suspension system of automotive)

Preicision tubes (For inner cylinder of shock absorber of automotive)

Precision tubes (For oil cylinder)

Precision tubes (For gas spring)


Seamless Heavy Wall Thickness Tubes

We are engaged in offering a wide range of Seamless Heavy Wall Thickness Tubes. Our team members make use of high-grade steel to ensure their adherence with international standards and norms. The tubes offered by us are available in various thickness and diameters that meet the various requirements of our clients. Owing to their superior finish, dimensional accuracy and longer life, these tubes are widely used in sugar mills & distilleries, pumps and petrochemicals, cement and construction industries & steel plants.



Strong construction, Durability, High Tensile, Precision Tubing

With the help of our experienced professionals and advanced manufacturing facility, we have been able to offer a precision engineered range of Precision Tubings. The tubings offered by us are manufactured in adherence with international standards and norms using high-grade raw material such as carbon steel. Owing to their features like corrosion resistance, durability and dimensional accuracy, these tubings are widely demanded by the clients.



Precision engineered, Accurate dimensions, Superior finish

We provide seamless mechanical steel tubing products designed to thrive in demanding, high-stress applications. You find these products in automotive components where performance depends on reliability and quality. In addition, you find our seamless mechanical steel tubing for industrial applications – ranging from bearings to cylinders and gears – where toughness is essential for functionality. Oil and gas exploration is another common use for our seamless mechanical tubing, where durability and component life below the Earth’s surface is paramount.


We produce seamless mechanical steel tubing close to your finished part size, which makes it very competitive compared to other forging or machining processes. You may also purchase tubes in sizes recommended to clean up at finished part dimensions, which allows for optimum material utilization.


We focus on continually improving the quality of our processes. With recent investments in an intermediate finishing line, water-blast descaling process, and continuous induction thermal treat facility, we strengthened our ability to offer quality, customized solutions. Our approach to manufacturing integrates our melting, rolling, piercing and finishing operations, helping to ensure quality control from start to finish. Our seamless mechanical tubing processes include piercing (rotary forging), thermal treatment, and testing and finishing.

Hot Tags: precision steel tubing, China, suppliers, manufacturers, price
  • facebook