Automotive Tube
Zhejiang Dingxin Steel Tube Manufacturing Co., Ltd., founded in 2004, is a leading precision seamless steel tube manufacturer in China.
The steel pipes we manufacture primarily encompass hydraulic cylinder tube, automotive tube, tube for mining and drilling, as well as precision seamless steel tube.
Why Choose us
Our Certifications
Certified under ISO 9001 and IATF 16949.
Production Capacity
With an annual production capacity exceeding 30,000 tons.
Production Experience
Dingxin possesses over 20 years of experience in the production of precision seamless steel tubes, coupled with a fully integrated in-house manufacturing process and comprehensive quality management systems.
Parameter
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Product name |
1026 Seamless Tubing |
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Standard |
ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing |
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Material |
SAE 1010 1020 1026 1045 1541 4130 4140 |
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Dimension |
OD: 16-245mm, WT1-32mm, Length: 3-6m or cut length based on customer requirements |
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Delivery condition |
Cold worked, Stress relieved, Annealed, Normalized, Quenched, and tempered |
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Certificate |
ISO 9001, IATF 16949 |
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Applications |
Automotive parts, motorcycle parts |
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Steel Grade |
C |
Mn |
P |
S |
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1026 |
0.22-0.28 |
0.60-0.90 |
≤0.040 |
≤0.050 |
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Material |
Delivery conditions |
Tensile strength (Mpa) |
Yield strength (Mpa) |
Elongation (%) |
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No less than |
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1026 |
HR |
379 |
241 |
25 |
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CW |
517 |
448 |
5 |
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SR |
483 |
379 |
8 |
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A |
365 |
207 |
25 |
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N |
379 |
248 |
22 |
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Types of Automotive Tube
The automotive tube produced by our company mainly include the following types:

1026 Seamless Tubing
The 1026 material, as defined by the ASTM A519 standard and commonly utilized in North America, presents several notable characteristics and applications.

ASTM A519 SAE AISI 1010 1020 1026 1045 1541 4130 4140 Mechanical Tubing
ASTM A519 is specified for Seamless Carbon and Alloy Steel Mechanical Tubing. It covers several grades of carbon steel tube and alloy steel seamless mechanical tubing including SAE 1008, 1010, 1020, 1026, 1045, 1541, 4130, 4140, etc.

ASTM A519 SAE AISI 4130 4140 QT Seamless Tubing
ASTM A519 seamless tubing covers several grades of carbon and alloy steel seamless tubing. A519 4130 and 4140 tubing are two kinds of alloy steel which are commonly used as raw materials in the automotive industry.

Motorcycle Front Fork Tube SAE 1536 1541
ASTM A519 SAE 1541 is medium carbon steel. The addition of manganese improves the mechanical properties such as strength and hardness. This material has good wear properties and can be used for applications such as motorcycle front fork, mining, etc.

EN 10305-1 E215 E235 E355 +C+SR+A+N Cold Drawn Seamless Tube
EN10305-1 specifies the delivery conditions for cold drawn seamless tube of circular cross section for precision applications. The tubes applied for EN10305-1 are characterized by having precisely defined tolerances on dimensions and specified surface roughness. Main applications are in automotive and general engineering industries.
Benefits of Automotive Tube
High strength
Automotive tubes are known for their high strength due to their uniform structure and absence of welded seams. This uniformity enables them to withstand significant mechanical stress and pressure, making them ideal for high-pressure environments such as fuel systems and hydraulic cylinders. The lack of weak points typically found in welded tubes enhances their durability and reliability, which is crucial for maintaining the safety and performance of automotive systems.
Corrosion resistance
A key benefit of automotive tubes is their exceptional resistance to corrosion. This is particularly valuable in the automotive industry, where components face harsh conditions like moisture, chemicals, and varying temperatures. Automotive tubes, especially those made from stainless steel, effectively resist corrosion, ensuring a longer lifespan for parts such as exhaust systems and chemical processing lines. This resistance helps reduce maintenance costs and downtime, improving the overall efficiency of automotive operations.
Thermal performance
Automotive tubes exhibit stable thermal performance, essential for applications involving high temperatures and corrosive gases. They can endure extreme heat without losing structural integrity, making them suitable for exhaust systems and other high-temperature applications. This ability to maintain performance under thermal stress ensures that vehicle systems remain functional and safe, even under demanding conditions.
Uniform thickness and smooth surface
The manufacturing process of automotive tubes ensures uniform thickness and a smooth internal surface. This consistency is critical for applications requiring precision, such as fuel injection systems and hydraulic applications. A smooth internal surface reduces friction, enhances fluid flow, and contributes to better fuel efficiency and engine performance. Additionally, it minimizes the risk of blockages and wear, extending the lifespan of the tubes and the systems they are part of.
High wear resistance
Automotive tubes are also known for their high wear resistance, which is particularly beneficial in automotive applications where components are subjected to constant friction and impact. This wear resistance makes them suitable for critical components like suspension arms, steering rods, and braking systems. By withstanding the rigors of daily use, these tubes help maintain the stability and safety of the vehicle over time.
Application of Automotive Tube
Fuel injection systems: Automotive tubes are used in fuel injection systems, which are responsible for delivering the fuel from the tank to the engine. Automotive tubes are used as fuel lines, which must have high pressure and temperature resistance, and tight dimensional accuracy to ensure a precise and efficient fuel flow.
Hydraulic cylinders: Automotive tubes are used in hydraulic cylinders, which are responsible for converting the hydraulic pressure into mechanical force for various automotive applications, such as braking, lifting, and steering. Automotive tubes are used as cylinder tubes, which must have high strength and toughness to withstand the heavy loads and impacts involved in the hydraulic operations.
Shock absorbers: Automotive tubes are used in shock absorbers, which are responsible for absorbing the vibrations and impacts from the road and improving the ride comfort and stability of the vehicle. Automotive tubes areused as piston rods, which must have high strength, fatigue resistance, and smooth surface finish to ensure a long and reliable service life.
Steering columns: Automotive tubes are used in steering columns, which are responsible for transmitting the steering input from the driver to the wheels of the vehicle. Automotive tubes are used as shafts, which must have high torsional stiffness, fatigue resistance, and corrosion resistance to ensure a precise and smooth steering operation.
Drive shafts and axles: Automotive tubes are used in drive shafts and axles, which are responsible for transmitting the torque from the engine to the wheels of the vehicle. Automotive tubes are used as tubes and shafts, which must have high strength, toughness, and dimensional accuracy to withstand the heavy loads and vibrations involved in the drive train.
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Packaging |
Long pipe: Hexagonal bundles with steel-hooped. |
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Short-cut pipes: Wooden box or metal frame. |
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Payment |
30% advance payment, 70% balance against B/L copy. |
Certificate


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