ASTM A513 Steel Tube

Material and Specification

ASTM A513 is a standard specification for electric-resistance-welded carbon and alloy steel mechanical tubing. This specification covers round, square, rectangular, and special shape tubing that is suitable for welding, riveting, or bolting purposes. The steel tube produced under this specification is commonly used in a variety of mechanical applications.

Chemical Composition

The chemical composition of steel tube ASTM A513 is as follows:

Element	Composition Range (%)
Carbon	0.10 - 0.20
Manganese	0.30 - 0.60
Phosphorus	0.035 (max)
Sulfur	0.035 (max)

Mechanical Properties

ASTM A513 steel tube possesses excellent mechanical properties, ensuring its suitability for various mechanical applications. The mechanical properties of steel tube ASTM A513 are provided in the table below:

Property	Value
Tensile strength	65,000 psi (min)
Yield strength	52,000 psi (min)
Elongation in 2 inches	25% (min)
Hardness (Rockwell B)	80 (max)

Steel Grade

steel tube ASTM A513 is available in different grades, including but not limited to:

Grade 1008

Grade 1010

Grade 1020

Grade 1026

These grades offer varying properties and are selected based on specific application requirements.

Application

The steel tube ASTM A513 finds wide application in the manufacturing and construction sectors due to its high strength, excellent weldability, and good formability. Some common applications of steel tube ASTM A513 include:

Machinery parts

Automotive components

Structural supports

Roll cages

Furniture frames

Construction equipment