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OEM/ODM ER5087 Magnesium Aluminum Welding Wire Manufacturers

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ER5087 Magnesium Aluminum Welding Wire
  • ER5087 Magnesium Aluminum Welding Wire
  • ER5087 Magnesium Aluminum Welding Wire
  • ER5087 Magnesium Aluminum Welding Wire
  • ER5087 Magnesium Aluminum Welding Wire
Aluminum Welding Wire

ER5087 Magnesium Aluminum Welding Wire

Aluminum Welding Wire ER5087 is about 4.5% Magnesium Aluminum filler metal added micro Zr which acts as grain-refiner, has high strength, excellent corrosion resistance, better bending property and the excellent resistance of hot cracking sensitivity, recommended for welding the wrought Aluminum alloys of 5000 series, 6000 series and 7000 series, such as 5083,6005 A, 6082,7005,7020, etc. Mainly used in ships, offshore facilities, storage tanks, rail transportation, high-speed trains, automobiles and other industries.

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ER5087
Magnesium Aluminum Welding Wire
Zirconium Grain Refined | Cryogenic Service
Mg 4.5-5.2%
Magnesium Content
Zr 0.08-0.20%
Zirconium Addition
-196°C
Service Temperature
Technical Data Sheet

ER5087 is a magnesium-zirconium alloyed filler metal formulated for gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) of 5083 and 5086 aluminum alloys. Zirconium addition within 0.08-0.20% promotes grain refinement in the weld deposit, resulting in a fine equiaxed microstructure. This refinement reduces solidification cracking susceptibility and improves ductility in the as-welded condition. The wire undergoes precision shaving and chemical cleaning to remove surface oxides, ensuring arc stability and consistent metal transfer. ER5087 maintains mechanical properties at cryogenic temperatures down to -196°C without ductile-to-brittle transition.

▍▍▍
Performance Characteristics
01
Grain Structure Control
Zirconium acts as nucleating agent during solidification, producing fine grain size and reducing hot cracking tendency in restrained joints.
02
Low Temperature Toughness
Impact strength remains above 35J at -196°C, supporting LNG storage tank construction and cryogenic piping systems.
03
Marine Corrosion Resistance
Magnesium content provides passive oxide stability in seawater, matching 5xxx series base alloy performance.
04
Feedability Assurance
Shaved surface finish with residual lubricant below 0.003g/kg enables consistent wire feeding at speeds up to 12 m/min.
Specification Matrix
AWS Classification
AWS A5.10 ER5087
ISO Equivalent
ISO 18273 S Al 5087
Diameter Range
0.8 mm · 1.0 mm · 1.2 mm · 1.6 mm
Packaging Configurations
D300 Spool (7 kg) · K355 Drum (50 kg) · Pay-off Bin (200 kg)
Shielding Gas
100% Argon (99.996% purity) · Ar-He mixtures for thicker sections
Chemical Composition Limits
Magnesium (Mg)4.5 - 5.2 %
Zirconium (Zr)0.08 - 0.20 %
Manganese (Mn)0.20 - 0.50 %
Chromium (Cr)0.05 - 0.20 %
Titanium (Ti)0.06 - 0.20 %
Aluminum (Al)Remainder
Total impurities below 0.15%
Industry Applications
Shipbuilding & Offshore
Welding of hull structures, deck plates, offshore platform modules, and marine riser systems.
Cryogenic Equipment
Liquefied natural gas (LNG) storage tanks, cryogenic transport vessels, liquid nitrogen containers.
Rail Transportation
High-speed train bodies, subway car structural components, aluminum freight car fabrication.
Heavy Machinery
Dump truck bodies, crane booms, excavator components, and industrial material handling equipment.
▼
Welding Process Parameters
Parameter
Value Range (1.2mm wire)
Voltage
21 - 25 Volts
Current
130 - 190 Amperes
Wire Feed Speed
4.0 - 7.0 m/min
Argon Flow Rate
18 - 24 L/min
Contact Tip Distance
12 - 18 mm
Operational Guidelines
Storage Conditions
Store spools in original packaging at 10-35°C with relative humidity below 55%. Opened spools must be used within 96 hours. For extended storage, place in heated cabinet at 35-45°C to prevent moisture absorption.
Surface Preparation
Remove oxide layer from base metal using stainless steel brush dedicated to aluminum. Clean with acetone to eliminate hydrocarbon residues. Avoid contamination from carbon steel particles.
Feeder Configuration
Use U-groove drive rolls with minimal tension setting. Install Teflon or nylon liners. Replace contact tip when bore wear exceeds 0.1mm. Maintain straight torch cable to reduce feeding resistance.
Interpass Temperature
Maintain interpass temperature below 120°C. For plate thickness above 15mm, apply preheat at 80-100°C. Use backstep welding sequence for long seam assemblies.
Certified to AWS A5.10 and ISO 18273 standards. Traceable batch certification available upon request. Mechanical property verification recommended for critical applications.

  • DIN EN ISO 18273

    S Al 5087 (AlMg4,5MnZr)

    Werkstoff-Nr.

    3.3546

    AWS/ASME A 5.10

    ER5087

    CHEMICAL COMPOSITION（wt）/%

    Si

    Fe

    Cu

    Mn

    Mg

    Cr

    Zn

    Ti

    Zr

    Be

    other

    Al

    single

    total

    ≤0.25

    ≤0.4

    ≤0.05

    0.7~1.1

    4.5~5.2

    0.05~0.25

    ≤0.1

    ≤0.15

    0.1~0.2

    ≤0.0003

    ≤0.05

    ≤0.15

    Rem.

    TYPICAL CHARACTERISTICS  

    melting range

    1075 - 1185°F

    conductivity

    16~19Ω·m/mm2

     density

    2.66g/mm3

    corrosion resistance

    A(Gen) A(SCC)

    coefficient of thermal expansion（20℃~300℃）

    23.7×10-6/K

    heat conductivity（20℃）

    110-120W/m·K

    Authentication

    ■ DB（61.069.03）

    ■ ABS

    The mechanical properties of typical welded joint

    Starting Sheet

    Starting Sheet Performance

    Joint Performance

    Rm (MPa)

    RP0.2 (MPa)

    A/%

    Rm (MPa)

    RP0.2 (MPa)

    A/%

    6061-T6/T651

    310

    275

    12

    205

    130

    11

    6063-T6

    240

    210

    12

    135

    80

    12

    7005-T6/T63

    370

    315

    12

    320

    215

    10

    7039-T64

    445

    380

    13

    310

    180

    12

    5083-O

    310

    200

    18

    300

    140

    16

    6082-T6

    310

    275

    11

    210

    130

    10

    Size and Packet 

    Class

    Typical Diameter/mm

    Reference Packet/Kg

    MIG

    0.8, 0.9, 1.0,1.2,1.6,2.4

    0.5,2,5,6,7,9

    TIG

    1.6,2.0,2.4,3.0,3.2,4.0,5.0/1000

    5,10

    DRUM

    0.8,0.9,1.0,1.2,1.6

    40,80

    COIL

    2.4,3.0,3.2,4.0

    8-15

     

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ER5087 Magnesium Aluminum Welding Wire

Coming From China，
Marketing To The World.

Hangzhou Kunli welding materials Co., Ltd. is located in the industrial zone of Puyang Town, Xiaoshan District, Hangzhou, Zhejiang Province. It is a high-technology and high-performance China Aluminum Welding Wire Manufacturers and wholesale ER5087 Magnesium Aluminum Welding Wire factory. The company has more than 20 years of aluminum alloy wire production experience, with international advanced aluminum alloy welding wire manufacturing equipment, complete testing equipment, stable production process and strict quality control system. The high-performance OEM/ODM ER5087 Magnesium Aluminum Welding Wire produced by the company has successfully passed a number of international authoritative certification, such as DB, CE, ABS, DNV, CCS, etc. We have more than 200MT production capacity per month and 50% was exported to over 30 countries such as USA, Mexico, Southeast Asia, Japan, Korea, Australia, New Zealand and etc.

  • 30+

    USED IN HEAVY INDUSTRY TECHNOLOGY SECTOR

  • 35

    YEARS OF RESEARCH AND DEVELOPMENT EXPERIENCE

  • 200+

    COOPERATIVE LARGE-SCALE R & D INSTITUTIONS

  • 20+

    GLOBAL TRADE COUNTRIES AND REGIONS

Coming From China,
Marketing To The World.

More than 90% of our field operators have professional and technical education background, and have many years of experience in equipment processing and assembly. It is precisely because of this united, dedicated, pioneering, skilled and experienced team that the company's technology and products can be continuously updated and improved.

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Industry Information Extension

Enhanced Performance: Why ER5087 is Preferred Over ER5356 for 7xxx Series Aluminum

The structural welding of 7xxx series aluminum alloys (Al-Zn-Mg-Cu) presents significant challenges, primarily due to their high susceptibility to solidification cracking and the softening of the Heat-Affected Zone (HAZ). ER5087 Magnesium Aluminum Welding Wire is specifically engineered to overcome these hurdles. Hangzhou Kunli Welding Materials Co., Ltd., a high-technology enterprise with over 20 years of expertise, manufactures high-performance ER5087 magnesium aluminum welding wire that utilizes advanced alloying elements to ensure superior joint integrity in high-stress applications.

The Zirconium (Zr) Advantage

The fundamental difference between ER5087 and the standard ER5356 is the strategic addition of Zirconium (Zr). This element serves as a powerful grain refiner during the solidification process:

  • Grain Refinement: Zirconium promotes the formation of a fine, equiaxed grain structure. This inhibits the development of long, columnar grains that are prone to centerline cracking in 7xxx series welds.
  • Improved Crack Resistance: By refining the grain size, ER5087 reduces the "brittle temperature range" during cooling, effectively preventing hot tears that often occur when using standard ER5356 on high-strength alloys.
  • Better Mechanical Matching: While ER5356 is a versatile 5% Magnesium filler, it lacks the secondary alloying elements needed to maintain high joint efficiency in aerospace and high-speed rail components, areas where Hangzhou Kunli Welding Materials Co., Ltd. excels.

Technical Parameter Comparison: ER5087 vs. ER5356

Characteristic ER5087 (AlMg5Zr) ER5356 (AlMg5)
Key Alloying Elements 5% Mg + 0.1-0.2% Zr 5% Mg
Solidification Cracking Risk Low (Optimized for high-strength alloys) Moderate (Risk in constrained joints)
Microstructure Fine Equiaxed Grains Standard Columnar Grains
Corrosion Resistance Excellent (Marine & Chemical) Excellent
Typical Application 7xxx series, Cryogenic tanks, WAAM General 5xxx series structural welding

Certified Excellence and Global Supply

Utilizing internationally advanced manufacturing facilities, Hangzhou Kunli Welding Materials Co., Ltd. ensures that its ER5087 wire maintains the stable production process required for high-end certifications, including DB, CE, ABS, DNV, and CCS. Through close cooperation with institutions like the Beijing Nonferrous Metals Research Institute, the company has successfully replaced imported products for industry giants such as China CRRC and Maersk. With a monthly capacity of 200 MT, Kunli exports to over 30 countries, providing reliable solutions for the most demanding welding environments.

FAQ

  • How does Hangzhou Kunli Welding Materials Co., Ltd. ensure the consistency of ER5087 for high-tech applications?

    Hangzhou Kunli Welding Materials Co., Ltd. implements a strict quality control system and utilizes complete testing equipment to monitor the precise Zirconium and Magnesium ratios. This commitment to precision allows their products to reach domestic and international levels, breaking the reliance on imported materials for specialized sectors like aerospace and rail transit.

  • Can Hangzhou Kunli Welding Materials Co., Ltd. support international certifications for marine use?

    Yes. Hangzhou Kunli Welding Materials Co., Ltd. has obtained a wide range of internationally recognized certifications, including ABS, DNV, and CCS. This makes their high-performance aluminum alloy welding wire suitable for critical marine structural welding and large-scale shipbuilding projects worldwide.

  • What is the production and export capability of Hangzhou Kunli Welding Materials Co., Ltd.?

    Hangzhou Kunli Welding Materials Co., Ltd. has a production capacity of more than 200 MT per month. Currently, 50% of its high-performance products are exported to major markets including the USA, Japan, Korea, and Australia, ensuring that global representative enterprises receive high-end, reliable "Made in China" welding materials.