Precision ERW Round Mechanical Tubing

01. Product Overview

For mechanical components, tube dimensions and fabrication requirements matter as much as the steel itself. Precision ERW Round Mechanical Tubing provides a round welded steel profile for applications involving cutting, machining, welding and component manufacturing.

We supply round ERW carbon steel tubes for mechanical structures, automotive components, industrial equipment and general metal fabrication.

Our ERW tube product range uses a manufacturing process in which steel strip or coil is formed into a round tubular section and joined along its longitudinal edges through electric resistance welding. The tube then undergoes sizing and cutting to produce the required sections.

Typical applications include automotive shock absorber tubes, steering tubes, drive shaft tubes, engine support components, stabilizer bar tubes and mechanical equipment parts. The required dimensions and steel grade depend on the design and manufacturing requirements of each component.

02. Product Specifications & Selection

The main selection factors are outside diameter, wall thickness, steel grade, dimensional tolerances and delivery length. These determine the tube dimensions and material requirements for subsequent fabrication.

For automotive and mechanical applications, outside diameter and wall thickness should correspond to the component drawing and machining requirements. Steel grade and mechanical properties should also match the specified material requirements.

For repeated production runs, dimensional tolerances, ovality and straightness are important purchasing considerations. Specifying these requirements in advance gives both parties clear dimensional and inspection criteria.

03. Manufacturing & Quality Control

The ERW tubing manufacturing process includes steel strip preparation, tube forming, longitudinal resistance welding, sizing and cutting.

Each stage relates to a specific product requirement:

• Forming and sizing: Establish the round tube profile and specified dimensions.
• Longitudinal ERW welding: Joins the formed steel strip edges to create the tubular section.
• Dimensional inspection: Checks outside diameter, wall thickness and specified geometric tolerances.
• Surface inspection: Checks the tube surface against the agreed finish requirements.
• Material verification: Checks the supplied steel against the specified grade and applicable requirements.

Inspection requirements are established according to the selected product standard and purchase order. Material and inspection documentation can be discussed as part of the order specifications.

04. Customization & Supply Options

We offer order-based product specification and supply arrangements for round ERW steel tubing.

For orders involving specific mechanical components, you can provide a drawing or specification sheet. We can review the required dimensions, material grade, surface condition, end finish and inspection criteria before confirming the order.

05. Company & Supply Support

Shanxi Midas Industrial Co.,Ltd was established in 2012 in Shanxi, China. Our steel product range covers steel coils, steel plates, steel strips, angle steel, H-beams and steel pipes, including ERW carbon steel tubes.

Our company introduction reports a site area of 600,000 square metres and a building area of 10,000 square metres. These facilities form part of our overall steel business.

For mechanical tubing orders, we provide product selection assistance, technical specification communication, quotations, order detail confirmation, production and inspection progress updates, and after-sales communication.

We coordinate the main order details before production, including tube dimensions, steel grade, delivery length, surface condition, end finish, inspection requirements and packaging. This gives customers a clear basis for confirming product specifications and purchase arrangements.

06. FAQ & RFQ