ASTM A519 1020

ASTM A519 1020 Seamless Mechanical Tubing (UNS G10200)

ASTM A519 1020 (UNS G10200) seamless mechanical tubing is a low-carbon steel grade known for its excellent machinability, good weldability, and superior formability. Manufactured through hot-finished or cold-finished processes, A519 1020 tubing is widely used for precision mechanical components, hydraulic cylinders, automotive parts, axles, shafts, and general engineering applications.

Its consistent microstructure and dimensional accuracy make it a reliable choice for high-performance machining and fabrication needs.

Key Features

• Low carbon content for easy cold-forming
• Excellent weldability and machinability
• High dimensional accuracy
• Smooth internal & external surface finish
• Ideal for case-hardening applications
• Suitable for precision machined components

ASTM A519 1020 Chemical Composition (Typical %)

ASTM A519 1020 Mechanical Properties

Sizes

• Outside Diameter (OD): From 10 mm up to 323.9 mm
  (Equivalent to 1/2 inch to 12 3/4 inches)

• Wall Thickness: From 1 mm up to 40 mm
  (Equivalent to 0.040 inch to 1.575 inches)

• Length:

  • Cut-to-length

  • Single Random Length (SRL): 4–7 meters

  • Double Random Length (DRL): 7–13 meters

  • Custom lengths up to 12–13 meters

Types of Grade 1020 Tubing

• Seamless Mechanical Tubing
• Cold-Drawn Seamless (CDS) Tubing
• Hot-Finished Seamless (HFS) Tubing
• Drawn Over Mandrel (DOM) Tubing
• Annealed Tubing
• Normalized Tubing
• Quenched & Tempered Tubing
• Carburizing Quality Tubing
• Precision Cut-to-Length Tubes

Applications

• Automotive parts
• Hydraulic cylinders
• Shafts, axles & spindles
• Precision-machined components
• Bushings & sleeves
• Industrial machinery
• Structural support components