ASTM A519 Seamless Automotive Steel Tube

Material, Specification, Key Features

ASTM A519 is a standard specification for seamless carbon and alloy steel mechanical tubing used in various automotive applications. This specification covers several grades of carbon and alloy steel seamless mechanical tubing.

Material:

Carbon Steel

Alloy Steel

ASTM A519

Seamless

Cold drawn or hot finished

Key Features:

Seamless construction ensures uniformity and strength

Wide range of sizes and shapes available

Suitable for high-stress applications in automotive engineering

Excellent machinability and weldability

Chemical Composition

Mechanical Properties

Physical Properties

Process Performance

Steel Grade

ASTM A519 Grade 1020

ASTM A519 Grade 1026

ASTM A519 Grade 4130

ASTM A519 Grade 4140

Application

The ASTM A519 seamless automotive steel tube finds application in various automotive components such as:

Suspension systems

Drive shafts

Steering columns

Chassis components

Hydraulic cylinders

Possible Alternative Grades

While ASTM A519 offers a comprehensive range of grades suitable for automotive applications, some alternative grades that may be considered include:

SAE J524 for low-carbon steel tubing

DIN 2391 for precision steel tubes

JIS G3445 for carbon steel tubes for machine structural purposes

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