Precision Steel Tubing

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

Applications:

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.

Specifications:

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.

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

Challenges

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

References

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.

Features:

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.

Features:

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.

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