Stock code: 601677
Stock code: 601677
When working on projects like sheet metal fabrication, cookware manufacturing, or tank production, have you ever hesitated between the H14 and H24 tempers for Aluminum 3003? Choosing the right temper is crucial, as it directly impacts formability, strength, surface quality, and the overall success of your project. This article will provide a clear analysis of Aluminum 3003 H14 vs H24 to guide you toward the best choice for your application.
Aluminum 3003 is a widely used aluminum-manganese alloy. It offers excellent corrosion resistance, good formability, and medium strength, maintaining the inherent advantages of aluminum, such as good thermal conductivity and non-magnetic properties. Its common applications include:
* Cookware: Pots, pans, oven liners.
* Construction: Louvres, roofing sheets, decorative panels.
* Containers: Chemical tanks, silos.
* General Sheet Metal: Various chassis, cabinet shells.
The final performance characteristics of 3003 aluminum sheet are primarily determined by its temper designation, such as H14 or H24.
The “H” in the temper designation stands for strain-hardened. The numbers that follow specify the exact processing technique:
* The first digit (H1x): Indicates the material is strain-hardened only (e.g., through cold rolling) to achieve the desired strength.
* The first digit (H2x): Indicates the material is strain-hardened and then partially annealed.
* The second digit (x4): Signifies the material’s strength is approximately midway between O (annealed) and Hx8 (fully hard) tempers.
The core difference lies in the manufacturing process:
* 3003-H14: Achieves its required hardness and strength directly through cold rolling. The process is more direct.
* 3003-H24: Is first cold-rolled to a strength slightly above the target, then undergoes partial annealing. This extra step slightly reduces the strength to the standard range and is key to its enhanced properties.
The table below provides a clear, side-by-side comparison of their key properties.
|
Characteristic |
3003-H14 |
3003-H24 |
Key Takeaway
|
|
Production Process |
Cold-rolled to specified hardness |
Cold-rolled + Partial Annealing |
Root of all differences. H24’s heat treatment results in a more stable structure. |
|
Tensile Strength (MPa) |
150 – 200 |
140 – 190 |
H14 is slightly stronger due to pure strain hardening. |
|
Yield Strength (MPa) |
145 min |
115 min |
H14 has a higher resistance to permanent deformation. |
|
Elongation (%) |
4 – 10 |
8 – 15 |
|
|
Formability |
Good |
Excellent |
Critical Difference! H24 has significantly better ductility. |
|
Flatness |
Good |
Superior |
H24’s softer nature and higher elongation make it superior for deep drawing and complex bends, reducing cracking risk. |
|
Typical Applications |
General parts requiring moderate strength and simple forming. |
Parts requiring deep drawing, complex forming, or high flatness standards. |
Partial annealing relieves internal stresses from rolling, giving H24 better flatness, which minimizes distortion after machining. |
Selecting the right material supplier is as important as selecting the material itself. With decades of experience in aluminum processing, Mingtai Aluminum guarantees the quality and consistency of our 3003 series products.
Contact Mingtai Aluminum today to request detailed technical data sheets for our 3003 alloys and a competitive quote. Let our expertise in materials like Aluminum 3003 H14 vs H24 become your competitive advantage.
