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ENiCrMo3T1-1/4 Flux Cored / UNS W86625 / AWS 5.34 / Nickel based Flux Cored welding wire FCW Alloy 625 T-1



ENiCrMo3T1-1/T1-4 is a gas protected all-position flux-cored flux that forms deposits within the chemical composition contained in alloy 625-T1. It is composed of nickel-chromium-molybdenum alloy and used for welding nickel-base alloy. It can weld nickel-base alloy and austenitic stainless steel with high molybdenum content in high yield. The wire can be used to weld 9Ni steel for low temperature applications. Suitable for manufacture of pressure vessels containing molybdenum, such as Alloy 625 and Alloy 825, and super austenitic stainless steel, such as 254 SMO (1.4547 / UNS S31254). The wire has excellent mechanical properties and low temperature ductility and can be used to weld 9Ni steel for low temperature applications. Suitable for pressure vessel manufacturing with operating temperature range -196C to 550C, otherwise resistant to scaling up to 1100C (in sulphur-free atmosphere)

Product Detail

ENiCrMo3 T-1/T-4 Flux Cored has excellent weldability and high resistance to pore formation. As a result, it has an excellent combination of corrosion resistance and high-strength property. In addition, due to the high nickel content, it is immune to chloride-induced stress corrosion cracking, and it also has good resistance to pitting and crevice corrosion.

ENiCrMo3 T-1/T-4 Flux Cored is used for joining nickel-molybdenum-chromium alloys.

• This wire is also used for surfacing steel and joining steels to nickel based alloys.

• Power plant field welding and overlay of water wall panels and membrane welding.

• Longitudinal and circumferential welded seams of coal de-sulfuring equipment and stacks.

• Welding super austenitic stainless steels (i.e. 904L, AL6XN, Sanicro 28, 6MO)

C Cr Cu Fe Mn Mo Ni P Si S Ti Nb+Ta
≤0.1 20.0-23.0 ≤0.5 ≤1.0 ≤0.5 8.0-10.0 ≥58.0 ≤0.02 ≤0.5 ≤0.015 ≤0.4 3.15-4.15
Tensile Strength Yield Strength Elongation (%)
109,000 psi 65,000 psi 46%
Process Diameter in Wire Ext Voltage (V) Amps Shielding GAS
FCAW 0.045 (1.2mm) 1/2 in 25-26 150-200 100% CO2 ; 75-80% Ar/ balance CO2
FCAW 1/16 (1.6mm) /2 in 26-27 200-250 100% CO2 ; 75-80% Ar/ balance CO2
Diameter in Spool Diameter in Packaging Ibs
0.045 (1.2mm) 12 (300mm) 33 (15kgs)
1/16 (1.6mm) 12 (300mm) 33 (15kgs)

ENiCrMo-3 is a welding filler metal classified under the American Welding Society (AWS) A5.14/A5.14M specification. It is commonly used for welding nickel-chromium-molybdenum (Ni-Cr-Mo) alloys, including materials such as Inconel 625 and Incoloy 825. These alloys are known for their excellent corrosion resistance, high-temperature strength, and weldability, making them suitable for a wide range of applications in industries such as aerospace, chemical processing, and marine engineering.

The “ENiCrMo-3” designation follows the AWS system for naming welding filler metals. Here’s what the letters and numbers in the classification represent:

  • “E” indicates that it is an electrode (or filler metal) used for manual or automatic arc welding.
  • “Ni” stands for nickel, indicating the primary alloying element.
  • “Cr” stands for chromium, which is another significant alloying element.
  • “Mo” stands for molybdenum, the third important alloying element.

ENiCrMo-3 filler metal provides a stable and reliable welding process when joining Ni-Cr-Mo alloys. It offers good mechanical properties and resistance to various corrosive environments, including acids, seawater, and high-temperature atmospheres.

The composition of ENiCrMo-3 filler metal is carefully formulated to match the base metal’s alloy composition, ensuring that the welded joints retain the same desirable properties as the base materials. Welds made with ENiCrMo-3 filler metal exhibit excellent strength, ductility, and resistance to stress corrosion cracking.

It’s essential to follow the recommended welding procedures and guidelines when using ENiCrMo-3 filler metal to achieve optimal results and ensure the integrity of the welded components in critical applications. Welders must be familiar with the specific characteristics of the filler metal and the base materials they are working with to ensure proper handling and welding techniques.

Continuing with the use of ENiCrMo-3 filler metal, it is essential to note that this welding electrode is typically used in applications where high-temperature strength and corrosion resistance are critical requirements. Some of the common applications for Ni-Cr-Mo alloys and the use of ENiCrMo-3 filler metal include:

  • Aerospace Industry: Ni-Cr-Mo alloys, joined using ENiCrMo-3 filler metal, are used in aircraft and aerospace components subjected to high-temperature and corrosive environments. Examples include turbine engine components, exhaust systems, and combustion chambers.
  • Chemical Processing: Nickel-based alloys, welded with ENiCrMo-3, are widely used in the chemical processing industry, where they encounter harsh chemical environments and elevated temperatures. Applications include reactors, heat exchangers, and piping systems.
  • Marine Engineering: Ni-Cr-Mo alloys, with their excellent resistance to seawater and marine environments, are used in marine engineering applications such as seawater piping, shipbuilding, and offshore structures.
  • Oil and Gas Industry: In the oil and gas sector, Ni-Cr-Mo alloys are utilized in components exposed to high-pressure, high-temperature, and corrosive conditions, including downhole equipment, wellhead components, and subsea pipelines.
  • Nuclear Power Generation: Nickel-based alloys welded with ENiCrMo-3 are employed in nuclear power plants due to their ability to resist corrosion in nuclear reactor environments.

When using ENiCrMo-3 filler metal, it is crucial to strictly adhere to welding procedures, including preheat and interpass temperature control, to avoid issues like cracking and loss of corrosion resistance in the welded joints. Additionally, post-weld heat treatment may be required for certain applications to ensure optimum mechanical properties and reduce residual stresses.

Welding with ENiCrMo-3 requires skill and expertise, and qualified welders should carry out the welding process. Proper joint preparation, cleanliness, and attention to detail are essential to achieve high-quality and reliable welds that meet the stringent requirements of the industries where these materials are used.

In conclusion, ENiCrMo-3 filler metal plays a significant role in welding nickel-chromium-molybdenum alloys, enabling the construction of components with exceptional strength, corrosion resistance, and high-temperature capabilities. Its use contributes to the successful operation of critical components in industries that demand reliability and performance under challenging conditions.