5019 Aluminium-Legierung

What Is 5019 Aluminum Alloy?

5019 aluminum alloy (EN AW-5019, UNS A95019) is a non-heat-treatable 5000 series aluminum-magnesium alloy, with magnesium as the primary alloying element at 4.5–5.6%. Also known as AlMg5, this alloy is classified as a medium-strength marine-grade aluminum that offers an excellent combination of corrosion resistance, weldability, and formability. Unlike 6000 and 7000 series alloys, 5019 is strengthened by strain hardening (H tempers) rather than heat treatment, which makes it particularly well suited for welded structures that must retain their strength after welding.

5019 is widely specified in marine, transport, and architectural applications where exposure to seawater, industrial atmospheres, or moisture is a concern. It is approved for food contact and is commonly used in tanks, pressure vessels, and piping systems. The alloy is supplied in tempers O, H111, H112, H116, H321, H32, H34, and H36, covering the full range from fully annealed to strain-hardened conditions.

Available 5019 Aluminum Products

Linsy supplies 5019 aluminum in sheet, coil, plate, bar, tube, wire, and custom profiles. Dimensions and tolerances can be tailored to your project requirements.

5019 Aluminum Sheet & Coil

5019 Aluminum Plate

5019 Aluminum Bar

5019 Aluminum Tube

5019 Aluminum Wire

5019 Aluminum Profiles

Custom extruded profiles are available on request. Please provide drawings or dimensional specifications for a quotation.

5019 Specifications & Equivalent Designations

Chemical Composition of 5019 Aluminum

Mn + Cr: 0.10 – 0.60%. Composition per EN 573-3.

Mechanische Eigenschaften je nach Temperierung

Values per EN 755-2 / EN 754-2 for wrought products. Actual values may vary with product form and thickness. MTC reports are provided with every order.

Leitfaden zur Auswahl der Härtung

Key Characteristics of 5019 Aluminum

Korrosionsbeständigkeit

5019 offers excellent resistance to atmospheric corrosion, seawater, and industrial chemicals. The H116 and H321 tempers are specifically stabilized to resist exfoliation and stress corrosion cracking in marine environments. This makes 5019 a preferred choice for shipbuilding, offshore platforms, and coastal architectural applications.

Umformbarkeit und Schweißbarkeit

5019 retains good formability in O and H111 tempers, allowing complex shaping and bending without cracking. The alloy has very good weldability using TIG (GTAW) and MIG (GMAW) processes; welded joints retain a high percentage of the parent material’s strength, and post-weld heat treatment is not required. Note that strain-hardened tempers (H32/H34/H36) will soften in the heat-affected zone after welding.

Gemeinsame Anwendungen

Hinweise zur Bearbeitung und Oberflächenveredelung

Linsy supports a range of downstream processing services for 5019 aluminum products:

• CNC Machining: 5019 machines well in O and H111 tempers. Strain-hardened tempers (H32/H34/H36) machine to a finer finish but with increased tool wear.
• Welding: Excellent weldability with TIG and MIG. No post-weld heat treatment required. For maximum corrosion resistance in welded assemblies, consider using H116/H321 tempers.
• Laser Cutting: Clean cuts achievable on sheet and plate. Minimal heat-affected zone; edge preparation for welding is typically straightforward.
• Formung: O and H111 tempers accept bending and drawing without cracking. Minimum bend radius depends on temper and thickness; consult Linsy technical support for critical forming applications.
• Surface Finishing: 5019 accepts anodizing, polishing, and mill finish. For architectural applications, PVC protective film and custom coating options are available on request.

Qualitätsdokumente und Qualitätsprüfung

Linsy provides the following quality documents with every 5019 aluminum order:

• MTC Report: Material Test Certificate issued by Linsy Aluminum, included with every order at no additional cost.
• SGS Test Reports: Available on request (additional testing cost applies) — chemical composition, mechanical properties, ultrasonic testing for thick plates, RoHS + REACH compliance.
• Dimension Inspection Report: Full dimensional verification available on request.

All 5019 aluminum products are supplied under Linsy’s ISO 9001, ISO 14001, and ISO 45001 certified quality management system.

Why Choose Linsy for 5019 Aluminum

Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience. For 5019 and other 5000 series marine-grade alloys, Linsy offers:

• Umfassende Bestandsabdeckung: Standard sizes in sheet, plate, bar, and tube available for prompt shipment.
• Custom sizes: Low-MOQ custom production for non-stock dimensions, with typical lead time of 10–60 days depending on alloy, dimensions, and processing requirements.
• Eigenbearbeitung: CNC machining, laser cutting, TIG/MIG welding, anodizing, polishing, and custom surface finishing — all under one roof.
• Full traceability: MTC report with every order; SGS third-party testing available on request.
• Technical support: Assistance with temper selection, formability evaluation, and welding preparation for marine and structural applications.

5019 Aluminum FAQ

1. What is 5019 aluminum alloy used for?
   5019 is primarily used in marine, transport, and industrial applications where corrosion resistance and weldability are required. Typical uses include ship hull plates, bus bodies, pressure vessels, storage tanks, and architectural cladding.
2. Is 5019 aluminum suitable for seawater exposure?
   Yes. 5019 offers excellent resistance to seawater corrosion, particularly in H116 and H321 tempers which are stabilized against exfoliation and stress corrosion cracking.
3. What tempers are available for 5019 aluminum?
   Linsy supplies 5019 in O, H111, H112, H116, H321, H32, H34, and H36 tempers. Select O/H111 for maximum formability, H116/H321 for marine use, and H32–H36 for higher strength.
4. Can 5019 aluminum be welded?
   Yes. 5019 has very good weldability using TIG and MIG processes. Post-weld heat treatment is not required. Note that strain-hardened tempers will soften in the heat-affected zone.
5. What is the difference between 5019 and 5083 aluminum?
   Both are 5000 series Al-Mg alloys for marine use. 5083 (AlMg4.5Mn) has higher strength and is more common for heavy marine plate; 5019 (AlMg5) has slightly higher magnesium content and is often preferred for formed sheet applications and food-contact equipment.
6. Does Linsy provide MTC reports for 5019 aluminum?
   Yes. A Material Test Certificate is issued with every order at no additional cost, documenting chemical composition and mechanical properties.
7. Can 5019 aluminum be anodized?
   Yes, but the anodized layer on 5000 series alloys is typically less decorative than on 6000 series alloys. For architectural appearance, discuss expectations with Linsy before specifying.
8. What lead time can I expect for custom 5019 aluminum?
   Typical custom lead time is 10–60 days, depending on alloy, dimensions, processing requirements, and order complexity. Stock items are available for faster shipment.

Allgemeine Fragen zur Bestellung

1. Wie hoch ist die Mindestbestellmenge (MOQ)?
   Linsy supports low-MOQ orders for custom sizes. Standard stock items have no minimum. Contact us with your requirements for a specific MOQ.
2. Can I request a sample before placing a full order?
   Yes, sample pieces are available. Sample cost and shipping terms are confirmed case by case.
3. What payment methods does Linsy accept?
   Linsy accepts T/T, L/C, and other standard international payment methods. Terms are confirmed at quotation stage.
4. Does Linsy ship internationally?
   Yes. Linsy ships to Europe, Asia, the Middle East, Africa, and the Americas. Shipping terms (FOB, CIF, DAP) are confirmed at order stage.
5. How do I request a quote for 5019 aluminum?
   Provide alloy, temper, product form, dimensions, quantity, and any processing requirements. Linsy will respond with availability, lead time, and pricing.