Dom Round Tubing Welded Carbon Round Steel Tube for Precision Machinery

Material Overview

Dom Round Tubing—commonly referred to as DOM (Drawn Over Mandrel)—is produced from electric-resistance-welded (ERW) steel (typically AISI 1020, 1026, or equivalent). It undergoes cold drawing over a mandrel to remove weld flash, enhancing dimensional accuracy, concentricity, strength, and surface quality. It is widely used in precision machinery due to these enhanced characteristics.

Specifications

• Standards: Conforms to ASTM A513 Type 5 (mechanical tubing), as well as international equivalents like EN DIN EN 10250‑2 (C22E), GOST 10704‑91, JIS G3445 STKM 13B, and GB/T 31315‑2014.

• Typical Grades: AISI 1020 is most common; 1026 is used for larger ODs or thicker walls. Some sources also list ST52.3.

• Size Range: OD from ~0.188″ to 12″ (4.8 mm–127 mm); wall thickness from 0.028″ to 0.625″ (0.7 mm–15.9 mm).

Chemical Composition Comparison

Here's a table comparing chemical composition among five common low‑carbon steel grades used in DOM/precision tubing:

Application Fields

DOM tubing is favored in precision-sensitive mechanical applications. Typical usage includes:

• Hydraulic Systems: Cylinder barrels, piston rods

• Automotive: Axles, gears, bushings, steering components

• Industrial Machinery: Shafts, spindles, couplings, structural supports

• Agricultural Equipment: Drive shafts, rollers, frame members

• Consumer & Construction: Furniture frames, accurate support members

Q: Are you trading company or manufacturer ?

A: manufacturer,also can do trading.

Q: How long is your delivery time?

A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock,

it is according to quantity.

Q: Do you provide samples? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact with me.