ASTM A513 Type 2 Cold-Rolled Tube – Grade 1010, 1” x 0.065” DOM Finish for Automotive Components

Cold-Rolled Steel Tube – ASTM A513 Type 2 Grades 1010, 1015, 1020, 1026 (1” x 0.065” DOM & 0.5”–12” for Automotive Components)

Overview
Discover our Cold-Rolled Steel Precision Tubes, engineered to ASTM A513 Type 2 standards in grades 1010, 1015, 1020, and 1026 with a Drawn Over Mandrel (DOM) finish. Available in sizes from 0.5” to 12” outer diameter (OD) and 0.035” to 0.5” wall thickness (WT), including the popular 1” OD x 0.065” WT, these tubes offer superior dimensional accuracy, smooth surface finish, and excellent mechanical properties. Ideal for automotive components, hydraulic cylinders, and conveyor rollers, our tubes deliver precision and durability across industries.

Manufacturing Process
Our ASTM A513 Type 2 precision tubes are produced through a meticulous cold-rolling and DOM process, ensuring high quality and precision:
1. Electric Resistance Welding (ERW): Steel strips are cold-formed and welded to create a continuous tube, ensuring a strong base material.
2. Cold Rolling: Tubes are cold-rolled to refine dimensions and improve surface quality.
3. Drawn Over Mandrel (DOM): Tubes are drawn over a mandrel and through a die to achieve precise dimensions (e.g., 1” OD x 0.065” WT), enhanced strength, and a smooth, seamless-like finish.
4. Heat Treatment: Tubes may be normalized or stress-relieved to optimize mechanical properties and ensure uniform microstructure.
5. Surface Finishing: Tubes are finished with a smooth, clean surface, often oiled or phosphated for corrosion resistance.
6. Quality Testing: Rigorous inspections, including dimensional checks, tensile testing, and surface quality assessments, ensure compliance with ASTM A513 standards.
The DOM process delivers tubes with tight tolerances, improved strength, and a superior surface finish compared to standard ERW tubes, making them ideal for precision applications.

Material Grades

Our precision tubes are available in grades 1010, 1015, 1020, and 1026, each tailored for specific applications and available in various delivery conditions:
Chemical Composition Comparison (Max % unless specified)

Note: Silicon content is typically not specified for ASTM A513 grades unless alloyed.

Mechanical Properties Comparison (DOM Condition)

Note: Mechanical properties are for the DOM condition. Properties may vary in other delivery conditions (e.g., as-welded or sink-drawn), with differences in strength or elongation.

Delivery Conditions

·Drawn Over Mandrel (DOM): The primary condition for ASTM A513 Type 2, where tubes are cold-drawn over a mandrel to achieve tight tolerances, high strength, and a smooth finish. Ideal for automotive components, cylinders, and rollers requiring precision and durability.
·As-Welded (AW): Tubes are welded and supplied without further cold-working, offering lower cost but less precision and strength compared to DOM. Suitable for less demanding applications.
·Sink-Drawn (SD): Tubes are cold-drawn through a die without a mandrel, providing improved surface finish and moderate strength, suitable for applications requiring less stringent tolerances than DOM.
·Normalized (+N): Tubes are heat-treated to normalize the microstructure, improving ductility and uniformity for applications like bending or forming in automotive or structural components.
·Stress-Relieved (+SR): Tubes are heat-treated after cold-working to relieve internal stresses, enhancing formability for complex fabrication processes.

Grade Descriptions

·1010 (ASTM A513): A low-carbon steel with excellent weldability and formability, ideal for lightweight automotive components and general mechanical fabrication, such as conveyor rollers.
·1015 (ASTM A513): A low-carbon steel with slightly higher strength than 1010, suitable for automotive parts and cylinders requiring moderate strength and good weldability.
·1020 (ASTM A513): A versatile low-carbon steel with excellent machinability and weldability, ideal for automotive components, hydraulic cylinders, and conveyor rollers.
·1026 (ASTM A513): A higher-carbon steel with superior strength and toughness, perfect for high-stress applications like heavy-duty hydraulic cylinders or robust conveyor rollers.

Specifications

Standard: ASTM A513 Type 2 (Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing, DOM Finish)
Size Range:

·Outer Diameter (OD): 0.5” to 12” (12.7 mm to 304.8 mm) (e.g., 1” OD as a common size)
·Wall Thickness (WT): 0.035” to 0.5” (0.89 mm to 12.7 mm) (e.g., 0.065” WT as a common size)
·Length: Random (1,000–12,000 mm) or custom-cut

Tolerances (per ASTM A513 Type 2, DOM):

·OD (0.5”–1.0”): ±0.005”; (>1.0”–2.0”): ±0.006”; (>2.0”): ±0.010”
·WT: ±10%
·Length: ±3 mm (for cut lengths)

Delivery Conditions:

·Drawn Over Mandrel (DOM): For high precision and strength.
·As-Welded (AW): For cost-effective applications.
·Sink-Drawn (SD): For moderate precision.
·Normalized (+N): For improved ductility.
·Stress-Relieved (+SR): For enhanced formability.
·Surface Conditions: Smooth, clean, or coated (e.g., oiled or phosphated) for corrosion resistance and fabrication ease.

Key Benefits

·High Precision: DOM process ensures tight tolerances (e.g., 1” OD ±0.005”, 0.065” WT ±10%) for precise automotive and mechanical components.
·Smooth Surface Finish: DOM finish reduces friction in conveyor rollers and enhances cylinder performance.
·Excellent Weldability: Low carbon content in all grades ensures reliable welds for cylinder and roller assemblies.
·Versatile Size Range: Sizes from 0.5” to 12” OD and 0.035” to 0.5” WT suit small to heavy-duty applications.
·Flexible Delivery Conditions: DOM, as-welded, or normalized options meet diverse fabrication needs.
·Cost-Effective: Carbon steels provide reliable performance at a lower cost compared to alloyed or stainless steels.

Applications

ASTM A513 Type 2 grades 1010, 1015, 1020, and 1026 precision tubes (e.g., 1” OD x 0.065” WT, DOM) are used in:

·Automotive Components: Steering columns, drive shafts, and suspension components (1020 or 1026, DOM for strength and precision).
·Hydraulic and Pneumatic Cylinders: Barrels for pistons in automotive, agricultural, or industrial equipment. 1026 (+CR2) for high-pressure cylinders; 1010 or 1015 (+N) for standard applications.
·Conveyor Rollers: Outer shells for rollers in automotive assembly lines, logistics, or material handling systems. 1010 or 1015 (DOM or +CR1) for lightweight rollers; 1020 or 1026 for heavier systems.
·Mechanical Fabrication: Precision components like spacers, bushings, and structural supports in machinery.
·Furniture and Design: Tubular frames for industrial or aesthetic applications (1010 or 1015, +SR for formability).
·General Engineering: Telescopic systems, rollers, and precision fittings.

Quality Assurance

All 1010, 1015, 1020, and 1026 precision tubes comply with ASTM A513 Type 2 standards. Test certificates per DIN EN 10204 3.1 are provided, verifying chemical composition, mechanical properties, and dimensional accuracy. Additional tests, such as eddy current testing, tensile testing, and surface inspections, ensure reliability and performance.

Why Choose Our Precision Tubes?

·Tailored Solutions: Custom sizes (0.5” to 12” OD, 0.035” to 0.5” WT) and delivery conditions (DOM, as-welded, normalized) to meet your project needs.
·Global Standards Compliance: Manufactured to ASTM A513 Type 2 for consistent quality.
·Reliable Supply Chain: Stocked in standard sizes (e.g., 1” OD x 0.065” WT) and customizable for specific applications.
·Expert Support: Our team provides technical guidance to select the ideal grade, size, and delivery condition for automotive components, cylinders, or rollers.

For more information or to request a quote, contact us at hongli-jy@126.com or visit hltube.com. Elevate your projects with high-quality ASTM A513 Type 2 Cold-Rolled Steel Precision Tubes.