3A21 Aluminum Rectangular SQUARE Block Bar

May 12, 2023

3A21 Al-Mn aluminum alloy,3A21 Aluminum Rectangular SQUARE Block Bar is a kind of widely used anti rust aluminum, the intensity is not high (only slightly higher than that of pure aluminum), can be strengthened by heat treatment, so we often use cold processing methods to improve its mechanical properties; in the annealed state have high plasticity, in the semi cold hardening plastic is good, when the low plasticity of cold hardening, good corrosion resistance, good weldability, poor machinability.

The specification of 3A21 Aluminum Rectangular SQUARE Block Bar
Alloy Temper Thickness（mm） Width（mm） Length（mm） Final Product
3A21 O,H12,H14,H16 0.2-4.5 100-2600 500-16000 Truck Body skin,
Aluminum H18,H19,H22,H24 floor, roof, etc.
Plate H26,H28,H32,H34
Sheet H36,H38

Performance advantage of 3A21 Aluminum Rectangular SQUARE Block Bar
1,3A21 Aluminum Rectangular SQUARE Block Bar is a typical antirust aluminum, with excellent corrosion resistance, can adapt to the humid environment;
2,3A21 Aluminum Rectangular SQUARE Block Bar is good weldability, good tensile strength, elongation is better than 3003 aluminum plate 25%;
3, 3A21 Aluminum Rectangular SQUARE Block Bar with smooth surface, good plasticity, pressure resistance;