ERNiCrMo-3 Nickel-Chromium-Molybdenum TIG Rods

Category： TIG Rods

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ERNiCrMo-3 Nickel-Chromium-Molybdenum TIG Rods

For INCONEL 625

GB/T 15620 SNi6625 | AWS A5.14

1. Chemical Composition (wt.%)

	C	Mn	Fe	P	S	Si	Cu
GB/T	≤0.10	≤0.50	≤5.0	≤0.020	≤0.015	≤0.50	≤0.50
AWS	≤0.10	≤0.50	≤5.0	≤0.020	≤0.015	≤0.50	≤0.50
Example	0.011	0.014	0.081	<0.005	<0.002	0.029	0.0076

	Ni	Mo	Cr	Nb	Ti	Al
GB/T	≥58.0	8.0~10.0	22.0~23.0	3.0~4.2	≤0.40	≤0.40
AWS	≥58.0	8.0~10.0	22.0~23.0	3.15~4.15	≤0.40	≤0.40
Example	64.7	8.8	22.22	3.74	0.3	0.022

2. Mechanical properties of all-weld metal – typical values

	Proof Stress Rp0.2 (MPa)	Tensile Strength Rm (MPa)	Elongation A (%)	Impact Energy J / °C
GB/T	200	480	27	-
AWS	-	480	30	-
Typical value	360	485	39.5	-

3. Description and Applications

1. ERNiCrMo-3 is a nickel-chromium-molybdenum alloy solid welding wire with a nominal composition of 61Ni-22Cr-9Mo-3.5Nb+Ta.

It provides stable arc characteristics, smooth bead appearance, good weld pool fluidity, favorable mechanical properties, and resistance to pitting and crevice corrosion.

2. Suitable for welding nickel-chromium-molybdenum alloys, dissimilar joints between nickel alloys and stainless steels, and weld overlay applications.

X-ray radiographic inspection: Grade I

4. Available Diameters

	TIG
Diameter (mm)	1.6、2.0、2.4、3.0

5. Welding Precautions

1. Remove all oil, rust, lubricants, moisture, marker ink, and other surface contaminants from the weld area before welding.

2. Keep heat input as low as practicable to reduce the risk of hot cracking. A low interpass temperature, preferably below 100°C, is recommended.

3. For outdoor welding, provide wind protection when wind speed exceeds 1.5 m/s; inadequate shielding gas coverage may cause weld bead deterioration and porosity.

Keywords： ERNiCrMo-3 Nickel-Chromium-Molybdenum TIG Rods

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