1. Material

This product is heavy-wall, cold-drawn, seamless tubing crafted from carbon steel (typically ASTM A519 1018/1026 or SAE 1541), delivering superior dimensional tolerance, surface finish, and strength—ideal for demanding mechanical applications. Cold drawing enhances physical properties versus hot-finished tubing.

2. Specifications

• Shape: Round seamless tube

• Wall Type: Heavy-wall

• Process: Cold drawing (from hot-rolled billet)

• Typical Sizes: OD 0.25" to 10" (6 mm to 254 mm); Wall thickness 0.035" to 1.5" (0.89 mm to 38 mm)

3. Chemical Composition

4. Mechanical Properties

5. Key Features

• Excellent dimensional accuracy and tight OD/ID tolerances

• Superior surface finish and uniform microstructure

• Increased strength and machinability compared to hot-rolled tubing

• High strength-to-weight ratio, reducing machining time and improving efficiency

6. Applicable Standards

• ASTM A519 – Mechanical seamless tubing (cold-drawn or hot finish) for grades like 1018, 1026, etc.

• ASTM A179 – Cold-drawn low-carbon steel tubes for heat exchangers and condensers

• ASTM A512 – Cold-drawn buttweld mechanical tubing up to 3½″ OD

• DIN 2391 – Cold-drawn seamless steel pipe (e.g., ST52 grade)

• SAE/ASTM – For 41xx family alloyed steels (like 4130) used under ASTM A519 when enhanced toughness/heat treatment is needed

7. Application Areas

General Field: Mechanical equipment—bushings, bearings, spacers, hydraulic cylinders, structural components.

Use Cases within Field:

• Bushings and spacers in automotive, aerospace, and heavy machinery

• Bearings/hydraulic cylinder parts requiring high precision

• Heavy-wall structural supports in construction, agriculture, and drilling equipment

• Heat exchanger tubing (ASTM A179) in boilers, condensers, and pressurized systems

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.