Hastelloy C-4 (ERNiCrMo-7) Welding Wire Guide

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Overview

Hastelloy C-4 (AWS ERNiCrMo-7) is a low-carbon nickel-chromium-molybdenum welding wire for welding Hastelloy C-4 and similar alloys. Provides excellent resistance to a wide range of corrosive environments with good weldability.

Welding Parameters

Parameter	GTAW	GMAW
Shielding Gas	Argon (99.995%)	Ar + 2% He or Ar + 2% CO2
Gas Flow Rate	8-15 L/min	15-25 L/min
Wire Diameter	1.6-3.2 mm	0.8-1.6 mm
Current Type	DCEN	DCEP
Welding Position	All positions	Flat / Horizontal

Applications

Hastelloy C-4 welding wire is used in a wide range of demanding applications:

• Chemical Processing: Welding of C-4 process equipment and piping.
• Aggressive Media: Welding for environments with mixed acids.
• Flue Gas Systems: Welding of scrubber components.
• Pharmaceutical: Welding of high-purity process systems.
• Pollution Control: Welding of waste gas treatment equipment.

Available Product Forms

Hangbo Alloy Group supplies Hastelloy C-4 welding wire in the following forms:

• TIG Wire: Straight lengths 1000 mm, diameters 1.6 mm, 2.0 mm, 2.4 mm, 3.2 mm.
• MIG Wire: Precision-wound spools (D200, D300), diameters 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm.
• SAW Wire: Coils for submerged arc welding, diameters 2.4 mm, 3.2 mm, 4.0 mm.

Related Standards

Standard	Description
AWS A5.14	ERNiCrMo-7
ISO 18274	S Ni 6455
EN ISO 18274	S Ni 6455
DIN 1736	SG-NiCr16Mo16

Contact Us for Hastelloy C-4

Hangbo Alloy Group supplies Hastelloy C-4 (ERNiCrMo-7) welding wire with full material certifications. We ensure consistent wire quality with precise diameter control, clean surface finish, and uniform feeding performance.

For quotations, material certifications, or technical consultation, contact our sales team or call +86-136-1165-6360.