A513 DOM (Drawn Over Mandrel) Round Tubing is a high-precision seamless steel tube manufactured through cold drawing process, featuring exceptional dimensional accuracy and superior surface finish. Utilizing advanced production technology, this product ensures uniform wall thickness and outstanding mechanical properties, making it an ideal choice for high-end mechanical applications.

Key Features:
✅ Ultra-High Precision: OD tolerance ±0.1mm, WT tolerance ±5%
✅ Excellent Surface Finish: Surface roughness Ra≤1.6μm, ready for precision machining
✅ High Strength: Tensile strength up to 850MPa
✅ Seamless Construction: Cold drawing process eliminates structural defects
✅ Multiple Material Options: Premium steel grades including 1020, 1026, 4130, etc.

Email : iris@txdmetal.com
Phone/Whatsapp : +15264150304
Addess : Room 111, Dongfang Xingye Steel Market, No. 121 Daqiao Road, Licheng District, Jinan City, Shandong Province, China

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Description

Cross Section	Round	Surface Treatment	Hot-Rolled
Tolerance	±1%	Oiled/Non-Oiled	Non-Oiled
Weight Calculation	Actual Weight	Origin	Shandong, China
Alloy or Not	Alloy Steel	Standard	ASTM A513
Delivery Time	Within 7 days	Brand	Tian Xinda
Application	Boiler Pipe, Drill Pipe	Special Pipes	Thick-Wall Pipe
Wall Thickness	0.5mm - 12mm	Length	6m/12m/Customized
Processing Services	Welding/Punching/Cutting,	Application	Machinery

Standard: ASTM A513

Material:
Carbon steel, mainly low-carbon steel, with common grades such as 1010, 1020, 1026, etc. These steels have excellent processability and mechanical stability.

Manufacturing Process:
DOM (Draw Over Mandrel) process. This process is based on Electric Resistance Welded (ERW) steel pipes. By cold-drawing the steel pipe with a mandrel, the burrs at the weld are eliminated, making the inner wall of the pipe smoother, with higher dimensional accuracy and more uniform mechanical properties.

Shape: Round, a specific round pipe treated by the DOM process in the A513 standard.

Applications:
Due to its high precision, high strength, and good surface quality, A513 DOM Round Tubing is widely used in fields with high requirements for dimensional accuracy and mechanical properties. For example, in the automotive industry, it is used to manufacture steering tie rods, drive shaft sleeves, suspension system components, etc.; in hydraulic and pneumatic systems as precision oil pipes and gas pipes; in mechanical manufacturing for making precision bushings, guide pipes, piston rods, etc.; in addition, it is also commonly used in sports equipment (such as bicycle frames, fitness equipment components) and some structural parts in the aerospace field.

Advantages:

Extremely high dimensional accuracy, with small errors in outer diameter, wall thickness, and roundness, which can meet the needs of precision assembly.

Excellent mechanical properties. After cold working, the strength and hardness are significantly improved while maintaining good toughness.

Smooth inner and outer surfaces, reducing fluid resistance, facilitating subsequent processing (such as electroplating, painting), and improving the aesthetics of the product.

Reliable weld quality. After treatment by the DOM process, the performance difference between the weld and the base metal is reduced, and the overall structure is more stable.