ER5087 Magnesium Aluminum Welding Wire

ER5087 Magnesium Aluminum Welding Wire

As a Er5087 Magnesium Aluminum Welding Wire.html manufacturer, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.

Hangzhou Kunli Welding Materials Co., Ltd. is a specialized manufacturer of high-performance aluminum alloy welding wire, and ER5087 is one of our key products for demanding structural and cryogenic applications. With over 20 years of production experience and a monthly capacity exceeding 200 MT, we supply this zirconium-refined filler metal to shipyards, rail manufacturers, and cryogenic equipment fabricators worldwide. Our ER5087 is produced on internationally advanced lines with strict quality control, and it is certified to DB, CE, ABS, DNV, and CCS standards.

ER5087 is a magnesium-zirconium alloyed filler metal designed for gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) of 5xxx, 6xxx, and 7xxx series aluminum alloys. The addition of zirconium (0.08–0.20%) acts as a grain refiner, producing a fine equiaxed microstructure that reduces hot cracking sensitivity and improves ductility. This makes it the preferred choice for welding alloys such as 5083, 6005A, 6082, 7005, and 7020, particularly in restrained joints and thick-section assemblies.

As a Aluminum Welding Wire ER5087 manufacturer and supplier, we offer the wire in MIG, TIG, and drum formats, with diameters from 0.8 mm to 5.0 mm. Our factory in Hangzhou, China, ensures consistent chemistry and surface quality, and we provide batch traceability and mechanical property verification for critical projects.

Key Performance Characteristics

• Grain Structure Control: Zirconium promotes fine grain size, reducing hot cracking in restrained joints.
• Low Temperature Toughness: Impact strength remains above 35 J at -196°C, suitable for LNG tanks and cryogenic piping.
• Marine Corrosion Resistance: Magnesium content provides passive oxide stability in seawater, matching 5xxx series performance.
• Feedability Assurance: Shaved surface with residual lubricant below 0.003 g/kg enables consistent feeding up to 12 m/min.

Specification Matrix

Chemical Composition (wt%)

Industry Applications

ER5087 is engineered for high-integrity welding in sectors where joint strength and crack resistance are critical. Typical applications include:

• Shipbuilding & Offshore: Hull structures, deck plates, offshore platform modules, and marine riser systems.
• Cryogenic Equipment: 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 material handling equipment.

Welding Process Parameters (1.2 mm wire)

Operational Guidelines

To achieve optimal weld quality, follow these handling and welding practices:

• Storage: Store spools in original packaging at 10–35°C with relative humidity below 55%. Use opened spools within 96 hours. For extended storage, place in a heated cabinet at 35–45°C.
• Surface Preparation: Remove oxide layer from base metal using a 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. Install Teflon or nylon liners. Replace contact tip when bore wear exceeds 0.1 mm. Maintain straight torch cable to reduce feeding resistance.
• Interpass Temperature: Maintain interpass temperature below 120°C. For plate thickness above 15 mm, apply preheat at 80–100°C. Use backstep welding sequence for long seam assemblies.

Quality Assurance and Certifications

Our ER5087 is manufactured under a strict quality control system and is certified to AWS A5.10 and ISO 18273. We hold internationally recognized certifications including DB, CE, ABS, DNV, and CCS, making our wire suitable for marine, rail, and pressure vessel applications. Each batch is traceable, and we can provide mechanical property verification for critical projects.

Customization and Project Support

We understand that every project has unique requirements. Our R&D team can develop and produce wire according to your specifications or samples, including custom diameters, packaging, and alloy adjustments. We also offer technical support from our welding engineers, and if needed, we can send an engineer to your factory to assist with process optimization.

Information We Use to Configure Your Solution

To prepare a precise quotation and configuration, please provide the following details:

• Base material alloy and thickness
• Welding process (MIG or TIG)
• Required diameter and packaging type
• Production volume and monthly consumption
• Applicable standards or certifications
• Any specific mechanical property requirements

Related Products

We offer a full range of aluminum welding wires to match different base alloys and applications. Explore our Aluminum Welding Wire category for options like ER5356, ER5183, and ER4043.

FAQs

What is the difference between ER5087 and ER5356?

ER5087 contains zirconium (0.08–0.20%) which acts as a grain refiner, reducing hot cracking and improving toughness, especially for 7xxx series alloys. ER5356 lacks this addition and is more suitable for general 5xxx welding.

Can ER5087 be used for cryogenic applications?

Yes, ER5087 maintains impact strength above 35 J at -196°C, making it ideal for LNG tanks and cryogenic piping.

What certifications does your ER5087 hold?

Our ER5087 is certified to DB, CE, ABS, DNV, and CCS, covering marine, rail, and pressure vessel applications.

What packaging options are available?

We offer D300 spools (7 kg), K355 drums (50 kg), and pay-off bins (200 kg). Custom packaging is available on request.

How do you ensure consistent quality?

We use advanced production equipment and a complete testing lab, including optical emission spectrograph and welding robots, to verify chemistry and mechanical properties.