EN AW 5251 5251 Aluminium Alloy Coil

Prime Quality EN AW 5251 Aluminum Coil 5251 Aluminium Alloy Coil

5251 aluminum coil delivers optimal balance for marine and industrial applications, combining

5052's workability with near-5083 performance at competitive pricing. Its unique property

profile makes it particularly valuable for coastal infrastructure and specialized transportation

equipment.

Key Characteristics

• Moderate Mg content (2.0-2.5%) offering balanced strength

• Exceptional corrosion resistance - outperforms 5052 in marine environments

• Excellent weldability - suitable for MIG/TIG welding

• Anodizing-friendly with good surface treatment adaptability

• Cost-performance leader between 5052 and 5083 alloys

Mechanical Properties

Competitive Advantages

✅ Marine-Grade Corrosion Resistance

  • Superior to 5052 in salt spray tests (1000+ hours)

  • Excellent SCC resistance

✅ Manufacturing Flexibility

  • Cold work hardening rate: 40-50% strength increase (H32 vs O)

  • Minimum bend radius: 2×thickness (H32 temper)

✅ Economic Value

  • 15-20% cost saving vs 5083 with comparable performance

✅ Welding Performance

  • Weld efficiency: >90% (using 5356 filler)

  • No post-weld heat treatment required

 Industry Applications

① Transportation

 • Shipbuilding: Cabin panels, auxiliary decks (1.5-4mm)

 • Automotive: Truck flooring, fuel tank brackets (H34, 2.0-3.0mm)

② Architecture

 • Coastal building facades (1.2-2.5mm)

 • Bridge guardrails (H32, 3.0-6.0mm)

③ Industrial

 • Chemical tank linings (O temper for deep drawing)

 • Cryogenic equipment housings

Our company advantages

Technological & Production Strengths:

♦ R&D Capabilities: Own a national-level corporate technology center and contributes to industry

standards.

♦ Production Scale: We had an annual capacity exceeding 1 million tons of aluminium large-scale 

rolling mills.

♦ Production Ability: We can produce the great Aluminum material for automobile, railway transp

-ortation, marine, aerospace etc fields, and obtained the relevant certification.

Our factory own the world advanced equipments, include: