Name: 1020 DOM Steel Tube Cold Drawn for Mechanical Applications
Brand: TORICH INTERNATIONAL LIMITED
SKU: 1020 DOM
Price: 900.00 USD
Availability: InStock

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1020 DOM Steel Tube Cold Drawn for Mechanical Applications

Place of Origin:

Zhejiang/China

Brand Name:

TORICH

Certification:

ISO9001 ISO 14001 TS16949

Model Number:

1020 DOM

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Product Details

Application:

Mechanical

Outer Diameter(round):

30 - 426 Mm

Thickness:

2 - 100 Mm

Standard:

ASTM,DIN,GB,JIS,API

Certification:

API,CE,ISO,ISO9001-2008,ISO9001

Technique:

Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn

Grade:

1008 1018 1020 1030 1045

Length:

6M Or As Requirement,As Customer's Require

Payment & Shipping Terms

Minimum Order Quantity

1Ton

Price

800-1000 USD/Ton

Packaging Details

In bundles or in wooden boxes.

Delivery Time

20-30days upon products

Payment Terms

L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability

60000 Ton/Tons per Year

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Product Description

1020 DOM Tubing Drawn Over Mandrel (DOM) Steel Round Tube

Product Specifications

Attribute	Value
Application	Mechanical
Outer diameter (round)	30 - 426 mm
Thickness	2 - 100 mm
Standard	ASTM, DIN, GB, JIS, API
Certification	API, CE, ISO, ISO9001-2008, ISO9001
Technique	Cold Drawn, Hot Rolled, Cold Rolled, ERW, Hot Rolled/Cold Drawn
Grade	1008, 1018, 1020, 1030, 1045
Length	6M or as requirement, As customer's require

Product Description

1020 DOM tubing is a cold-drawn, seamless steel tube produced by drawing a hot-finished tube over a mandrel, resulting in precise dimensions, smooth surface finish, and enhanced mechanical properties. Commonly manufactured from low-carbon grades such as AISI 1020, it offers excellent machinability, weldability, and uniform wall thickness, making it ideal for demanding mechanical applications.

Material Properties

"Drawn Over Mandrel" (DOM) tubing is manufactured by cold drawing a seamless tube over a tight-fitting mandrel, which refines inner and outer diameters, improves surface finish, and enhances mechanical properties through work hardening. The base material is low-carbon steel, commonly AISI 1020, known for its ductility, weldability, and consistent grain structure.

Technical Specifications

Parameter	Typical Range	Source
Outside Diameter (OD)	4 mm - 200 mm	GOST 8734-75 tolerances
Wall Thickness (WT)	1 mm - 20 mm	GOST 8734-75 tolerances
Length	3 m - 6 m	Industry practice
Surface Finish	Ra ≤ 1.6 µm	ASTM A519 requirements
Straightness	≤ 0.5% of length	GOST 8734-75 requirements

Chemical Composition

Grade	C (wt%)	Mn (wt%)	P (≤ wt%)	S (≤ wt%)	Other Highlights
AISI 1008	0.08-0.10	0.40-0.70	0.035	0.035	Si 0.15-0.30; minor Ni, Cr, Cu, Mo
AISI 1018	0.15-0.20	0.60-0.90	0.040	0.050	Fe balance
AISI 1020	0.17-0.23	0.30-0.60	0.040	0.050	Si ≤ 0.35; Cu ≤ 0.40; Ni ≤ 0.40
AISI 1030	0.28-0.34	0.60-0.90	0.025	0.015	Si 0.15-0.35; trace Mo
AISI 1045	0.42-0.50	0.60-0.90	0.040	0.050	Fe balance

Mechanical Performance

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HB)
AISI 1008	340	285	20	95
AISI 1018	440	370	15	126
AISI 1020	395	295	36.5	111
AISI 1030	650-880	350-550	8-25	-
AISI 1045	565	310	16	163

Key Characteristics

Dimensional Precision: Tight tolerances (< ± 0.13 mm on OD; ± 0.12 mm on WT) ensure interchangeability
Enhanced Strength: Cold work increases yield and tensile strength versus hot-finished tubes
Improved Surface: Smooth, machine-ready finish (Ra ≤ 1.6 µm) reduces post-machining labor
Excellent Machinability & Weldability: Low-carbon steel matrix supports easy cutting and effective fusion welding
Uniform Wall Thickness: Mandrel drawing achieves consistent wall thickness with minimal eccentricity

Compliance Standards

ASTM A519: Standard for seamless mechanical tubing, including DOM by cold drawing
ASTM A513: Standard for electric-resistance welded mechanical tubing
EN 10305-1: Cold drawn seamless steel tubes for pressure purposes, precision grade
GOST 8734-75: Cold-formed seamless steel pipes, defining OD, WT, and mass tolerances
JIS G3445: Cold drawn steel tubes for general mechanical and structural use
GB/T 4161: Cold drawn steel tubes for general engineering purposes (China)

Applications

General Field: Mechanical and structural engineering for movable components.

Automotive: Drive shafts, steering components, suspension parts where precision and fatigue strength are critical
Hydraulics: Cylinder barrels and piston rods in hydraulic equipment requiring smooth bore and high straightness
Furniture: Chair legs, railing spindles, connectors demanding aesthetic finish and uniformity
Agriculture: Gear shafts, linkage rods, pick-up tubes where durability and machinability are essential

Frequently Asked Questions

Are you trading company or manufacturer?

Manufacturer, also can do trading.

How long is your delivery time?

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.

Do you provide samples? Is it free or extra?

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

What is your terms of payment?

Payment <=2000USD, 100% in advance. Payment >=2000USD, 30% T/T in advance, balance before shipment. If you have another question, please feel free to contact with me.

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