C-276 Nickel Alloy Welding Wire Manufacturer

C-276 Nickel Alloy Welding Wire

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This filler wire (ERNiCrMo-4) is designed for GTAW (gas tungsten arc welding) and GMAW (gas metal arc welding) applications. It is commonly used for welding Inconel C-276 and other nickel-chromium-molybdenum alloys, ensuring strong and corrosion-resistant joints. Thanks to its high molybdenum content, it offers exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion, making it an excellent choice for demanding industrial environments.

Common Names: Oxford Alloy® C-276, FM C-276, Techalloy 276

International Standards: AWS A5.14, ERNiCrMo-4 / ASME II, SFA-5.14, UNS N10276, Werkstoff Nr. 2.4886, ISO SNi6276, European NiCrMo16Fe6W4

Chemical composition (%)

C	Si	Mn	S	P	Ni	Co
≤0.02	≤0.2	≤2.0	≤0.01	≤0.01	Rest	≤2.5
W	V	Fe	Cu	Cr	Mo	others
3.0-4.5	≤0.35	4.0-7.0	≤0.5	14.5-16.5	15-17	＜0.5

Welding parameters

Process	Diameter	Voltage	Amperage	Gas
TIG	.035” (0.9mm) .045” (1.2mm) 1/16” (1.6mm) 3/32” (2.4mm) 1/8” (3.2mm)	12-15 13-16 14-18 15-20 15-20	60-90 80-110 90-130 120-175 150-220	100% Argon 100% Argon 100% Argon 100% Argon 100% Argon
MIG	.035” (0.9mm) .045” (1.2mm) 1/16” (1.6mm)	26-29 28-32 29-33	150-190 180-220 200-250	75% Argon 25% Helium 75% Argon 25% Helium 75% Argon 25% Helium
SAW	3/32” (2.4mm) 1/8” (3.2mm) 5/32” (4.0mm)	28-30 29-32 30-33	275-350 350-450 400-550	Can be used with appropriate flux Can be used with appropriate flux Can be used with appropriate flux

Mechanical properties

Tensile strength	114,500 PSI	790 MPA
Yield strength	85,000 PSI	590MPA
Elongation	27%

Applications

The high molybdenum content enhances resistance to stress corrosion cracking, pitting, and crevice corrosion, making this filler wire ideal for cladding applications.
Commonly used in the groove welding of 9% nickel steel for LNG storage tank fabrication.
Suitable for welding materials with similar chemical compositions, as well as dissimilar joints between nickel-based alloys, steel, and stainless steel.