Mechanical strength is a make-or-break factor for many aluminum projects—and 3003 and 5052 aluminum differ sharply here. 3003 aluminum has a moderate tensile strength of 110–130 MPa and a yield strength of ~95 MPa, with a high elongation of 20–35%. This means it’s soft and flexible, easy to bend or stretch into shapes like lamp shades or cookware bowls.

5052 aluminum, however, is significantly stronger: its tensile strength ranges from 210–230 MPa, yield strength is ~190 MPa, and elongation is 12–20%. The higher magnesium content gives it the rigidity to withstand pressure and stress, making it ideal for automotive components or boat hatches. Temper also plays a role—3003 in O-temper (annealed) is softest for deep drawing, while 5052 in H32 temper balances strength and formability for bending. Choosing based on strength prevents issues like cracking: 3003 would fail in high-pressure cookers, but 5052 handles the stress easily. Click here to know more.