What is DOM Tubing and The Benefits Of DOM Tubing

DOM tubing (Drawn-Over-Mandrel tubing) is made from cold-drawn, electrically-resistance-welded tubes. It is drawn through a die and over a mandrel, which gives it exceptional dimensional accuracy, strong weld integrity, and a smooth surface finish. One of the major advantages of DOM tubing is its cost-effectiveness, making it a preferred choice for many applications. Additionally, its tight tolerances allow it to be used in mechanical parts with minimal or no further processing.

Solitaire Overseas sells and distributes DOM tubing in various sizes, weights, and specifications to meet diverse customer needs.

The Many Purposes of DOM Tubing

DOM tubing (Drawn Over Mandrel tubing) serves various industries due to its strength and seamless finish. It is commonly used in machinery, hydraulics, motorcycle frames, and bearings, to name a few. Unlike welded tubes, DOM tubing offers a seamless connection, making it ideal for applications requiring high pressure or heavy workloads.

Its durability makes it a popular choice for automotive parts, race car and motorcycle frames, and farming equipment. DOM tubing comes in a wide range of sizes and specifications, including stainless steel DOM tubing. It is also widely used for bushings and structural applications.

When looking for a reliable DOM tubing supplier, Solitaire Overseas is your top choice. We meet all tubing standards, such as ASTM A513, ensuring high wall uniformity and offering a wide selection of sizes to suit your needs.

DOM Tubing Specifications

Tube Type

Chemical Composition

Tensile Strength (ksi)

Yield Strength (ksi)

Hardness

1010ERW tube

.08-.13

.30-.60

.035 max

RB55 min

1020DOM tube

.15-.25

.30-.60

.040 max

.050 max

RB80

4130DOM tube (chromoly)

C	.28-.33
Mn	.40-.60
P	.035
S	.040
Si	.15-.35
Cr	.80-1.10
Mo	.15-.25

100

RB90

Weights of DOM tubing sizes

Outside Diameter	Wall thickness	Inside Diameter	Type	Weight, lbs/ft.	Wgt/80ft.
1.25″	0.120	1.010″	HREW/DOM	1.448	116
1.375″	0.120	1.135″	HREW/DOM	1.608	128.6
1.5″	0.095″	1.310	HREW/DOM	1.426	114
1.5″	0.120″	1.260″	HREW/DOM	1.769	141.5
1.75″	0.109″ (FIA)	1.532″	DOM	1.910	152.8
1.75″	0.120″	1.510″	HREW/DOM	2.089	167.1

DOM Tubing Specs Count

Gauge Number	Thickness (Inches)		Pounds Per Sq. Ft.
Gauge Number	Nominal	Tolerance Range	Pounds Per Sq. Ft.
10	.1345	.1405 to .1285	5.48695
11	.1196	.1256 to .1136	4.87911
12	.1046	.1106 to .0986	4.26718
13	.0897	.0947 to .0847	3.65933
14	.0747	.0797 to .0697	3.04740
15	.0673	.0723 to .0623	2.74552
16	.0598	.0648 to .0548	2.43955
17	.0538	.0578 to .0498	2.19478
18	.0478	.0518 to .0438	1.95001
19	.0418	.0458 to .0378	1.70524
20	.0359	.0389 to .0329	1.46455
21	.0329	.0359 to .0299	1.34216
22	.0299	.0329 to .0269	1.21978
23	.0269	.0299 to .0239	1.09739
24	.0239	.0269 to .0209	.97501
25	.0209	.0239 to .0179	.85262
26	.0179	.0199 to .0159	.73023
27	.0164	.0184 to .0144	.66094

Benefits of Drawn Over Mandrel (DOM) Tubing

Uniform grain structure and controlled hardness for enhanced durability.
Consistent wall thickness with precise outer and inner diameter tolerances.
High tensile and yield strength, making it suitable for demanding applications.
Great machining characteristics, allowing easy fabrication and customization.
Smooth and clean surfaces on both the outer and inner sides, reducing the need for extra finishing.

These features make DOM tubing ideal for applications that require strength, precision, and reliability

FAQ

Drawn Over Mandrel (DOM) tubing is a type of mechanical tubing made from cold-drawn 1020/1026 steel. It is produced by drawing the tubing over a mandrel, which removes the internal flash from the electric resistance welded (ERW) tube. This process ensures tighter outer diameter (OD) and inner diameter (ID) tolerances compared to standard welded tubing, resulting in a stronger and more uniform product.

DOM tubing is strong and reliable, often preferred for high-pressure or heavy workloads. It’s commonly used in automotive parts, race car frames, motorcycle frames, and farming equipment due to its sturdiness.

DOM tubing is typically made from 1020 to 1026 grade steel or ST52.3. It's a cold-drawn, electric resistance welded tube with the flash removed before being drawn to size for tight tolerances.