3003 h24 aluminum coil

When evaluating 3003 H24 aluminum coil for your projects, you likely already know the alloy designation—but choosing the right temper and avoiding common pitfalls can still be tricky. This guide cuts through the noise and gives you practical insights to make a confident decision.

What Does 3003 H24 Actually Mean?

3003 is a well‑known aluminum‑manganese alloy (Mn: 1.0%–1.5%). Adding manganese boosts strength above pure aluminum (like 1100) and improves corrosion resistance—that’s why it’s often called an “anti‑rust” alloy.

H24 describes the temper. “H” stands for strain‑hardened, and “24” means the material is partially annealed after hardening. In plain terms: H24 delivers a balanced state—stronger than fully soft (O temper), but more formable than full‑hard (H28). It gives you both rigidity and workability.

Why Choose H24 Temper?

Think of it as “stiff yet flexible” —that’s the sweet spot.

- Moderate strength – Tensile strength ranges roughly 145–195 MPa, with yield strength ≥115 MPa. That’s enough for structural rigidity without making forming difficult.

- Excellent formability – Bending, stamping, and deep drawing are smooth; cracking is rarely an issue, even for complex shapes.

- Good corrosion resistance – Outperforms pure aluminum in atmospheric, fresh water, seawater, and many chemical environments.

- Weldable – Supports common welding methods (TIG, MIG, etc.), giving you flexibility in fabrication.

> *We supply the bare aluminum coil substrate and do not offer coating, anodizing, or any secondary processing.*

Where Is 3003 H24 Most Commonly Used?

Its versatility covers many industries. Here are the typical applications:

- Building & decoration – curtain walls, roofing, ceiling panels, wall cladding  

- Transportation – truck bodies, mudguards, refrigerated container liners, marine parts  

- Pipe insulation – protective jacketing for power plants and chemical facilities  

- Electronics – heat sinks, battery housings for EVs  

- Packaging & containers – bottle caps, food utensils  

Whenever you need light weight, corrosion resistance, and easy forming, 3003 H24 is a solid candidate.

H24 vs. H14 – Which One Fits Your Project?

This is one of the most frequent dilemmas. The short answer:

- H14 – higher strength, but less formable  

- H24 – slightly lower strength, but much better formability  

If your part needs high load‑bearing capacity with simple shapes → go H14. If you need bending, stamping, or drawing → H24 is the safer choice.

4 Practical Tips When Ordering 3003 H24 Aluminum Coil

① Confirm alloy + temper on paper – Always specify “3003‑H24” in the contract. Some suppliers may substitute with 1xxx series, so request a mill test certificate.

② Check thickness tolerance – Low‑price offers often cheat on gauge. A nominal 0.5 mm may actually measure 0.42 mm. Upon delivery, use a caliper and measure at multiple points.

③ Clarify size range – Typical thickness goes from 0.2 mm up to 8.0 mm, and widths from 100 mm to 2600 mm. Know your required dimensions and ask whether custom sizes are available.

④ Evaluate supplier capacity – Prefer mills with stable stock and proven production scale to ensure reliable lead times. Stable quality and on‑time delivery matter more than the lowest price.

FAQ – Quick Answers

Q1: Which temper is better for bending, H24 or H14?  

A: H24 – the partial annealing gives it superior formability and reduces cracking risk during bending.

Q2: What thickness range is available for this product?  

A: Commonly 0.2–8.0 mm, with widths up to 2650 mm.

Q3: How does its corrosion resistance compare to pure aluminum?  

A: It is noticeably better, especially in atmospheric, fresh‑water, and mild chemical environments.

Q4: What’s the most common trap when buying this material?  

A: Receiving under‑thickness coils; always verify the actual gauge and require a material certificate.

Q5: Do you offer coating or further processing?  

A: No – we focus on supplying high‑quality bare coils without any surface treatment or secondary fabrication.

Henan Mingtai Al. Industrial Co., Ltd. offers a comprehensive range of 3003 H24 aluminum coils with stable quality and flexible specifications to meet diverse project needs—welcome to inquire for more details.