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

 

 

Product name

1026 Seamless Tubing

Standard

ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing

Material

SAE 1010 1020 1026 1045 1541 4130 4140

Dimension

OD: 16-245mm, WT1-32mm, Length: 3-6m or cut length based on customer requirements

Delivery condition

Cold worked, Stress relieved, Annealed, Normalized, Quenched, and tempered

Certificate

ISO 9001, IATF 16949

Applications

Automotive parts, motorcycle parts

Steel Grade

C

Mn

P

S

1026

0.22-0.28

0.60-0.90

≤0.040

≤0.050

 

Material

Delivery conditions

Tensile strength (Mpa)

Yield strength (Mpa)

Elongation (%)

No less than

1026

HR

379

241

25

CW

517

448

5

SR

483

379

8

A

365

207

25

N

379

248

22

 

Types of Automotive Tube

 

The automotive tube produced by our company mainly include the following types:

1026 Seamless Tubing
 

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 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 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
 

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
 

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.

 

Packaging and Payment Methods

 

Packaging

Long pipe: Hexagonal bundles with steel-hooped.

Short-cut pipes: Wooden box or metal frame.

Payment

30% advance payment, 70% balance against B/L copy.

 

Certificate

 

 

productcate-1-1productcate-1-1

 

FAQ

 

Q: What grade of steel is 1026?

A: 1026 steel is a low-carbon, mild steel alloy with approximately 0.22% to 0.28% carbon content. It falls under the category of carbon steel, known for its excellent weldability, formability, and machinability.

Q: What is the Rockwell hardness of 1026 steel?

A: Hardness, Rockwell B 78 78 Converted from Brinell hardness. Hardness, Vickers 149 149 Converted from Brinell hardness.

Q: How long is your delivery time?

A: Generally it takes 30-50 days to manufacture the pipes.

Q: What are the manufacturing tolerances for seamless pipe?

A: The wall thickness tolerance of 12.5 % for hot rolled seamless pipes is specified fundamentally in ASTM A999 or EN ISO 1127 T2. However, wall thickness differences caused by the manufacturing procedure may lead to a possible eccentricity, that is, to a deviation from symmetry .

Q: What is the limit of seamless pipe?

A: When manufacturing seamless pipes, the length manufactured depends on the weight per metre or per rod. Thus up to NB 100, pipe lengths of a maximum 13 m, and up to NB 200 pipe lengths of a maximum of around 4 m can be produced.

Q: What is the tolerance thickness of steel pipe?

A: Tolerances on the wall Thickness The minimum wall thickness at any point shall not be more than 12.5 % under the specified wall thickness. Tolerances in Mass The mass of any length of pipe shall not vary more than 10 % over and 3.5 % under that specified.

We're professional automotive tube manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale high-grade automotive tube at competitive price from our factory.ASTM A519, 4130 tubing, Cold drawn precision steel tube

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