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Cryogenic Service Aluminum Welding Wire

-- Steady & Reliable Manufacturer --

Intro

Aluminum filler metals specifically formulated to maintain high strength and ductility when subjected to extremely low temperatures, ideal for handling liquefied gases.

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Introduction

The construction of vessels and piping for storing and transporting cryogenic materials (such as LNG, liquid oxygen, and nitrogen) demands weld joints that retain exceptional fracture toughness at temperatures approaching absolute zero. Our specialized 5XXX series filler wires are engineered with controlled Manganese and Magnesium levels to prevent brittleness and maintain mechanical integrity in deep-cold environments. This ensures the long-term safety and reliability of critical cryogenic infrastructure.

Specification

Classification (AWS)ER5183 / ER5356
Key PropertyMaintained fracture toughness at -196掳C or lower
Base Metal Compatibility5083, 5456, and other alloys used in cold service
Impact TestingMeets Charpy V-notch requirements at low temperatures
Manganese ContentControlled to optimize low-temperature performance

Applications

  • Welding liquefied natural gas (LNG) storage tanks and tankers.

  • Fabrication of cryogenic air separation units and heat exchangers.

  • Piping systems designed for liquid hydrogen and oxygen transfer.

  • Construction of vacuum-insulated cryogenic vessels and dewars.

FAQ

  • Q: What is the primary concern when selecting a filler metal for cryogenic service?
  • A: The main concern is ensuring the weld metal does not undergo a ductile-to-brittle transition at low operating temperatures, which requires filler alloys with low impurity content and specific Manganese/Magnesium levels.
  • Q: Is ER4043 recommended for cryogenic applications like LNG?
  • A: No, ER4043 and other Aluminum-Silicon fillers are generally unsuitable as they lose significant ductility and toughness at cryogenic temperatures. High-Magnesium alloys like ER5183 are the industry standard.

Advantages

  • Guaranteed Low-Temperature Toughness: The weld metal retains high impact strength and ductility, preventing brittle failure in severe cold environments.

  • High Integrity: Low-hydrogen and high-purity processing minimize porosity and defects, essential for pressure vessel certification.

  • Excellent Mechanical Strength: Delivers superior tensile and yield strength in the as-welded condition, critical for structural safety.

  • Certified Consistency: Every batch is manufactured under strict control to ensure uniform properties required for code-stamped vessels.

Payment and Shipping

  • Material Certificates: Full Mill Test Certificates (MTCs) with chemical and mechanical test results provided.

  • Logistics: Secure, protective packaging to prevent atmospheric exposure before use in sensitive fabrication shops.

  • Consultation: Technical consultation available for material selection based on specific operating temperatures.

About Us

Coming From China, Marketing To The World.

Hangzhou Kunli welding materials Co., Ltd. is China Cryogenic Service Aluminum Welding Wire Manufacturers and Wholesale Cryogenic Service Aluminum Welding Wire OEM/ODM Suppliers. We are located in the industrial zone of Puyang Town, Xiaoshan District, Hangzhou, Zhejiang Province. It is a high-technology enterprise specializing in the research, development and manufacturing of high-performance. The company has more than 20 years of aluminum alloy wire production experience, with international advanced manufacturing equipment, complete testing equipment,stable production process and strict quality control system.
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