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: