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ERCOCR-C Filler Wire – Composition, Properties, and Uses

ERCOCR-C Filler Wire

In welding, selecting the right filler wire is crucial to achieving quality results. ERCOCR-C filler wire is a popular option for high temperatures and extreme environments applications. But what makes it so special, and why should you consider it? In this blog post, we’ll dive into everything you need about ERCOCR-C filler wire, its composition, mechanical and physical properties, uses, corrosion resistance, and heat treatment.

What is ERCOCR-C Filler Wire?

ERCOCR-C Filler Wire is a low alloy steel wire primarily used for gas metal arc welding (GMAW) applications. It contains chromium, molybdenum and vanadium, which offer superior corrosion and oxidation resistance properties and increased hardness. The wire offers an excellent bead shape and has good mechanical properties due to its controlled hydrogen levels. It is also well suited to welding medium carbon steels in single-pass and multipass welds. These filler wires are also easy to use because their straightforward application process allows operators to produce consistent quality welds while still meeting or exceeding industry safety requirements.

ERCOCR-C Filler Wire Composition

ERCOCR-C wire is a low carbon, high nickel-chromium-cobalt and molybdenum alloy containing tungsten. It is typically used for welding overlays on high-temperature alloys, such as nickel- or cobalt-based alloys. This filler wire creates a heat-resistant layer that can withstand harsh environments and high-temperature applications. Its unique composition allows it to maintain its strength and resistance to corrosion, even at elevated temperatures.





Others Hardness Density Melting Range



28 – 32





Ni, Fe, Si,
Mn, Mo
50-58 HRC
550-720 HV
8.69 g/cm3
0.314 lb/in3
2175-2450 °F
1190-1345 °C

ERCOCR-C Filler Wire Mechanical properties

One of the advantages of ERCOCR-C welding wire is its exceptional mechanical properties. It has high strength, excellent wear resistance, and good ductility, making it ideal for welding in high-stress environments. It also exhibits good creep resistance, allowing it to withstand constant stress without degrading. These mechanical properties make ERCOCR-C filler wire ideal for gas turbines, valves, and petrochemical pipelines.

Rp0.2 (MPa)
Rm (MPa)
KV/Ku (J)
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
873 (≥) 753 (≥) 24 12 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

ERCOCR-C Filler Wire Physical properties

In addition to its mechanical properties, ERCOCR-C electrode boasts unique physical properties. It has a high melting point, high thermal conductivity, and low thermal expansion coefficient, making it suitable for high-temperature welding applications. Its low carbon content makes it resistant to intergranular corrosion, ensuring that your welds maintain their integrity even in harsh environments.

Trade Names of  ERCoCr-C Filler Wires

Class UNS Stellite
ERCoCr-C R30001 Stellite®1

ERCOCR-C Filler Wire Uses

ERCOCR-C filler metal is widely used in various industries because of its exceptional performance. Its high resistance to corrosion and high-temperature environments make it ideal for the petrochemical, power generation, and aerospace industries. In petrochemical applications, ERCOCR-C filler wire can be used in welding pipelines, high-temperature boilers, and pressure vessels. Power generation can weld gas turbines, steam turbine blades, and exhaust stacks. In addition, it is used in aerospace for welding turbine blades and other aerospace components.

ERCOCR-C Filler Wire Heat Treatment

Regarding heat treatment, ERCOCR-C welding alloy can be used in both as-welded and post-weld heat-treated conditions. The as-welded condition provides a heat-resistant overlay that resists cracking and deformation. Post-weld heat treatment improves the mechanical properties of the weld, making it ideal for high-stress applications.

ERCOCR-C Filler Wire Corrosion Resistance

ERCOCR-C filler wires are known for their excellent corrosion resistance. The alloying elements of chromium, molybdenum, and nickel present in the wire help it to offer superior protection from corrosive substances. Its low carbon content makes it ideal for applications requiring superior weldability and improved mechanical characteristics. Moreover, these wires feature high strength and good ductility that can resist cracking even at higher temperatures. This ensures long-lasting protection against corrosion while providing a durable and reliable welded joint.


ERCOCR-C filler wire is a high-performance welding filler wire that boasts exceptional properties allowing high-quality welds in extreme conditions. Its composition, mechanical and physical properties, corrosion resistance, and heat treatment make it an essential welding filler wire for the petrochemical, power generation, and aerospace industries. Understanding the unique qualities of ERCOCR-C filler wire can help you make an informed decision when selecting a filler wire for your welding applications.

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