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DOM Carbon Steel Tube for Precision Machinery 30-425mm OD

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DOM Carbon Steel Tube for Precision Machinery 30-425mm OD

Name: DOM Carbon Steel Tube for Precision Machinery 30425mm OD
Brand: TORICH
Price: 800 USD

China DOM Carbon Steel Tube for Precision Machinery 30-425mm OD wholesale

Brand Name : TORICH

Model Number : Dom Round Tubing

Certification : ISO9001 ISO 14001 TS16949

Place of Origin : Zhejiang/China

MOQ : 1Ton

Price : 800-1100 UUSD/Ton

Payment Terms : L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability : 60000 Ton/Tons per Year

Delivery Time : 20-30days upon products

Packaging Details : In bundles or in wooden boxes.

Application : Structure Pipe,Hydraulic Pipe,Construction,Fluid Pipe,Oil Pipe

Outer diameter(round) : 30 - 425 mm,

Thickness : 2 - 100 mm,0

Standard : ASTM,DIN,GB,JIS,API

Technique : Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn

Grade : 1008 1010 1015 1018 1020

Special pipe : Thick Wall Pipe,API Pipe,Precision steel tube,

Length : 6M or as requirement

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DOM Carbon Steel Tube for Precision Machinery 30-425mm OD

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:

Grade	C (%)	Mn (%)	P (max %)	S (max %)
AISI 1008	0.08–0.10	0.30–0.50	0.040	0.050
AISI 1010	0.08–0.13	0.30–0.60	0.040	0.050
AISI 1015	0.13–0.18	0.30–0.60	0.040	0.050
AISI 1018	0.15–0.20	0.60–0.90	0.040	0.050
AISI 1020	0.18–0.23	0.30–0.60	0.040	0.050

Mechanical Properties Comparison

Mechanical properties for the same five grades are outlined below:

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HB)
AISI 1008	~340	~285	~20	~95
AISI 1010	~365	~305	~20	~105
AISI 1015	~385	~325	~18	~111
AISI 1018	~440	~370	~15	~126
AISI 1020	~420	~350	~15	~121

Key Features

Tight Dimensional Tolerances: Cold drawing yields excellent OD/ID accuracy and concentricity
Surface Finish: Smooth, flash-free internal and external surfaces
Enhanced Mechanical Performance: Improved tensile/yield strength from cold worked processing; still offers great machinability and weldability, especially in 1020
Cost-Efficient: Offers high performance at lower cost relative to seamless options

International Standard Equivalents

EN: DIN EN 10250‑2 (C22E)
GOST: GOST 10704‑91
JIS: JIS G3445 STKM 13B
GB: GB/T 31315‑2014 (cold‑drawn/rolled precision welded tubes)

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

DOM Carbon Steel Tube for Precision Machinery 30-425mm OD

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.

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