Aluminum Extruded Square Tube

This grade is commonly referred to as the architectural alloy, or 'square corner'. It was developed as an extrusion alloy with reasonable tensile strength, excellent finishing characteristics, and excellent corrosion resistance..

ABOUT

SPECIFICATIONS:

ASTM B221

APPLICATIONS:

Structural applications, fencing, handrails, frames and columns.

HOW TO MEASURE:

A (Width) X B (Height) X C (Wall)

CHEMISTRY

CHEMISTRY: LESS THAN 3/4" THICK

Chemistry: Less than 3/4" thick

Aluminum 98.9
Copper .01
Silicon .20 - .60
Iron .035 max
Magnesium .45-.9
Zinc .1
Chromium .01
Titanium .1

MECHANICAL PROPERTIES:

Tensile Strength = 27
Yield Strength = min 21
% Elongation = 12%
Brinell Hardness 60
Rockwell Hardness 17