JIS 7075 Plate - AFNOR 7075A-Z5GU Sheets Plates Blocks

Product Description

7075 Aluminium is the flagship high-strength alloy of the 7000 series (Al-Zn-Mg-Cu). Often referred to as "Aircraft Grade," it offers a strength profile comparable to many steels while remaining lightweight. It is the primary choice for structural components subjected to high stress.

1. Key Designations and Equivalents

The designations you mentioned refer to the same base alloy chemistry standardized across different regions.

2. Typical Mechanical Properties (T6 Temper)

The T6 temper (solution heat-treated and artificially aged) is the standard for maximum strength.

3. Key Characteristics

• High Strength: Offers one of the highest strengths available in the aluminium family.

• Machinability: Excellent. It machines to a very high finish and is preferred for complex, high-precision CNC parts.

• Corrosion Resistance: Average to Low. It is prone to stress corrosion cracking and atmospheric pitting. It is often anodized or Alclad (coated with a layer of pure aluminium) for protection.

• Weldability: Poor. Resistance welding is possible, but arc welding (MIG/TIG) is generally avoided as it significantly weakens the alloy and creates risk of cracking.

4. Common Applications

• Aerospace: Aircraft fittings, gears and shafts, fuse parts, and missile structures.

• Tooling & Mold Making: Highly popular for injection mold tools and blow molds due to its high thermal conductivity and hardness.

• High-End Sports Equipment: Bicycle components, rock climbing equipment, and professional archery bows.

• Defense: Critical structural parts for military vehicles and hardware.

5. Form Availability

• Sheets: Thinner gauges used for skins and lightweight panels.

• Plates: Thicker sections (often up to 200mm+) used for heavy-duty structural machining and mold bases.

• Blocks: Pre-cut rectangular sections tailored for precision tool and die work.

Comparison: 7075 vs. 2014

While both are "high strength" alloys, they differ in their primary alloying elements:

• 7075 (Zinc-based): Generally higher overall strength and better fatigue resistance.

• 2014 (Copper-based): Better performance at slightly elevated temperatures, but slightly lower peak strength than 7075.