5019 铝合金

5019 aluminum alloy (EN AW-5019, AlMg5) is a non-heat-treatable 5000 series aluminum-magnesium alloy with 4.5–5.6% magnesium. It offers excellent corrosion resistance—especially to seawater—combined with very good weldability and formability, making it a preferred marine-grade alloy for shipbuilding, transport, and industrial applications. Linsy supplies 5019 aluminum sheet, plate, coil, bar, tube, wire, and profiles in tempers O, H111, H112, H116, H321, H32, H34, and H36, with custom sizes, surface finishing, and MTC reports available.

可选格式： 板材 / 板 / 卷材 / 棒材 / 管材 / 线材 / 型材
常见脾气： O / H111 / H112 / H116 / H321 / H32 / H34 / H36
处理支持： 数控加工 / 激光切割 / TIG 和 MIG 焊接 / 阳极氧化 / 抛光
质量文件： 每笔订单均附带MTC报告，可根据要求提供SGS检测报告

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

形式	脾气	厚度（毫米）	宽度（毫米）	长度（毫米）
5019 Sheet / Coil	O, H111, H112, H32, H34, H36	0.5 – 6.0	500 – 2600	500 – 16000

5019 Aluminum Plate

形式	脾气	厚度（毫米）	宽度（毫米）	长度（毫米）
5019 Plate	O, H111, H112, H116, H321	6.0 – 120	500 – 2600	500 – 16000

5019 Aluminum Bar

形式	脾气	直径（毫米）	长度（毫米）
5019 Round Bar	O, H111, H112, H32, H34	6 – 400	500 – 6000

5019 Aluminum Tube

形式	脾气	外径 (mm)	壁厚（毫米）	长度（毫米）
5019 Tube / Pipe	O, H111, H112, H32	6 – 400	0.5 – 40	500 – 12000

5019 Aluminum Wire

形式	脾气	直径（毫米）
5019 Wire / Rod	O, H111, H12, H14	1.0 – 12.0

5019 Aluminum Profiles

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

5019 Specifications & Equivalent Designations

标准	名称
EN AW (Europe)	EN AW-5019
UNS (USA)	A95019
Alloy Name	AlMg5
DIN WNR (Germany)	3.3555
ASTM B209 / B210 / B211	AA 5019
ISO 6361	AlMg5

5019铝的化学成分

要素	内容 (%)
Si	≤ 0.40
铁	≤ 0.50
铜	≤ 0.10
锰	0.10 – 0.60
镁	4.5 – 5.6
Cr	≤ 0.20
锌	≤ 0.20
Ti	≤ 0.20
其他（每项）	≤ 0.05
其他（共计）	≤ 0.15
Al	剩余

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

不同回火状态下的力学性能

脾气	拉伸强度（兆帕）	屈服强度（兆帕）	伸长率 A50 (%)	Brinell Hardness (HBW)
O / H111	250 – 320	≥ 110	≥ 15	≈ 65
H112 (F)	≥ 250	≥ 110	≥ 14	≈ 65
H32	290 – 350	≥ 195	≥ 8	≈ 80
H34	320 – 380	≥ 255	≥ 6	≈ 90
H36	340 – 400	≥ 285	≥ 4	≈ 100

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.

硬度选择指南

脾气	条件	主要特点	典型应用
O / H111	Annealed / stabilized	Maximum ductility, best formability, lowest strength	Deep drawing, complex forming, weld preparation
H112 (F)	As fabricated	Moderate strength, good corrosion resistance	Structural plate, marine hull plates, general fabrication
H116 / H321	Strain hardened + stabilized	Excellent corrosion resistance, suitable for marine exposure	Ship hulls, offshore structures, seawater piping
H32	¼ hard	Good strength with retained formability	Boat superstructures, vehicle panels, welded assemblies
H34	½ hard	Higher strength, moderate formability	Pressure vessels, walkways, structural framing
H36	¾ hard	High strength, limited formability	Rigid panels, stiffeners, applications with minimal forming

5019铝的关键特性

耐腐蚀性

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.

可成形性与可焊性

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.

常见应用

行业	典型应用
Marine & Shipbuilding	Hull plates, superstructures, bulkheads, seawater piping, tank lids
运输	Bus bodies, trailer panels, caravan skins, railway carriage interiors
工业	Pressure vessels, storage tanks, chemical processing equipment, pipework
建筑	Wall cladding, roofing, facades, walkways, platform flooring
家具	Framing, panels, architectural indoor applications
Food & Beverage	Processing tanks, piping (approved for food contact)

加工与表面处理说明

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

CNC加工： 5019 machines well in O and H111 tempers. Strain-hardened tempers (H32/H34/H36) machine to a finer finish but with increased tool wear.
焊接： Excellent weldability with TIG and MIG. No post-weld heat treatment required. For maximum corrosion resistance in welded assemblies, consider using H116/H321 tempers.
激光切割： Clean cuts achievable on sheet and plate. Minimal heat-affected zone; edge preparation for welding is typically straightforward.
成型： 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.

质量文件与检验

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测试报告： 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.

为什么选择Linsy的5019铝材

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:

Broad inventory coverage: 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.
内部处理： CNC machining, laser cutting, TIG/MIG welding, anodizing, polishing, and custom surface finishing — all under one roof.
全程可追溯性： 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

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.
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.
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.
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.
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.
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.
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.
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.

常见订购问题解答

最低订购量（MOQ）是多少？
Linsy supports low-MOQ orders for custom sizes. Standard stock items have no minimum. Contact us with your requirements for a specific MOQ.
在下全订单前可以申请样品吗？
Yes, sample pieces are available. Sample cost and shipping terms are confirmed case by case.
林西接受哪些付款方式？
Linsy accepts T/T, L/C, and other standard international payment methods. Terms are confirmed at quotation stage.
林西是否提供国际运输？
Yes. Linsy ships to Europe, Asia, the Middle East, Africa, and the Americas. Shipping terms (FOB, CIF, DAP) are confirmed at order stage.
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.