ERNiFe-CI MIG & TIG Welding Wire

The ERNiFe-CI MIG & TIG Welding Wire filler wire, manufactured and supplied by Metals And Welding Specialities, is a premium nickel-iron alloy welding product designed for high-performance joining and overlay applications. Classified under UNS N07041 and conforming to ASTM Grade ERNiFe-CI, this alloy delivers excellent strength, corrosion resistance, and thermal stability in demanding environments. Metals And Welding Specialities has engineered this product to meet the critical needs of industries that rely on durable and reliable weld joints under mechanical and chemical stress.

The ERNiFe-CI filler metal is primarily used for welding cast irons, nickel-iron alloys, and dissimilar combinations of ferrous and nickel-based metals. Its superior metallurgical properties make it particularly effective for joining gray iron, ductile iron, and cast steels. With outstanding resistance to cracking, porosity, and thermal fatigue, this wire ensures consistent weld quality in both MIG and TIG processes. The balanced composition of nickel and iron provides exceptional tensile strength and machinability after welding, allowing post-weld finishing operations to be carried out with ease.

This AWS Class ERNiFe-CI wire is widely used in maintenance and repair operations, especially where cast iron components are exposed to heat, friction, or corrosive agents. Typical applications include cylinder heads, pump housings, machine bases, exhaust manifolds, and gear housings. It delivers reliable performance in both as-welded and stress-relieved conditions, maintaining strong mechanical integrity even at elevated temperatures. Its ability to produce dense and defect-free weld deposits makes it a preferred choice for precision manufacturing and industrial repair shops.

The UNS N07041 alloy used in this filler wire is known for its excellent resistance to oxidation and scaling at high temperatures, making it suitable for applications in automotive, petrochemical, marine, and power generation sectors. The chemical balance of the alloy minimizes shrinkage and distortion during solidification, providing smooth bead appearance and stable arc characteristics. Whether used with direct current electrode positive (DCEP) in MIG welding or pure argon shielding gas in TIG welding, this wire ensures smooth feedability and consistent results.

Metals And Welding Specialities ensures that every batch of ERNiFe-CI MIG & TIG wire undergoes strict quality control in compliance with international welding standards. The company’s expertise in producing advanced filler metals guarantees uniform composition, low impurities, and excellent corrosion resistance. As a trusted name in welding consumables, Metals And Welding Specialities continues to deliver products that enhance productivity, reduce downtime, and extend component life across multiple industries.

When precision, durability, and reliability matter, the AWS Class ERNiFe-CI wire from Metals And Welding Specialities stands as the professional’s choice for joining and rebuilding cast iron components.

• Specification ERNiFe-CI MIG & TIG Welding Wire

  Classification	ERNIFE-CI
  Form	MIG spools, TIG cut lengths, Reels and Coils
  Type Of Welding	Inert Gas Welding
  Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
  AWS ERNIFE-CI MIG & TIG Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

• ERNiFe-CI MIG & TIG Welding Wire Chemical Composition

  Element	Composition (%)
  C	0.1 max
  Mn	0.5 – 1.5
  Fe	Remainder
  S	0.02 max
  Si	0.20 max
  P	0.02 max
  Ni	55.0 min
  Other	1.0 max

• ERNiFe-CI MIG & TIG Welding Wire Parameters

  Process	Diameter of Wire	Voltage (V)	Amperage (A)	Gas
  Tig	.035 inches x 36	12 -15	60 -90	100% Argon
  	.045 inches x 36	13 -16	80 - 110	100% Argon
  	1/16 inches x 36	14 - 18	90 - 130	100% Argon
  	3/32 inches x 36	15 – 20	120 -175	100% Argon
  	1/8 inches x 36	12 -15	150 - 220	100% Argon
  Mig	.035 inches	26 – 29	150 – 190	75% Argon + 25% Helium
  	.045 inches	28 – 32	180 – 220	75% Argon + 25% Helium
  	1/16 inches	29 – 33	200 - 250	75% Argon + 25% Helium

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