ER330 MIG & TIG Welding Wire

The ER330 MIG & TIG Welding Wire welding wire offered by Metals And Welding Specialities is a high-performance stainless steel filler metal designed for applications demanding superior oxidation and corrosion resistance at elevated temperatures. Manufactured according to UNS N08330 and compliant with ASTM Grade 330 (also known as Alloy 330), this wire is engineered to maintain exceptional mechanical strength and structural integrity in extreme heat environments. Its balanced chemical composition of nickel, chromium, and iron ensures durability where thermal cycling and carburizing conditions would typically degrade standard alloys.

Our ER330 welding wire is ideal for both MIG (GMAW) and TIG (GTAW) processes, providing consistent arc stability, smooth feedability, and minimal spatter formation. It produces clean, high-quality welds that resist scaling and cracking, even after prolonged exposure to temperatures up to 1150°C (2100°F). This makes it particularly suitable for joining and overlaying heat-resistant alloys used in furnaces, petrochemical equipment, and high-temperature industrial systems.

When you choose Metals And Welding Specialities, you are choosing reliability backed by precision manufacturing and metallurgical expertise. Each spool of AWS ER330 wire undergoes stringent quality control to ensure uniform diameter, precise chemical composition, and low levels of impurities. The result is a filler metal that meets and exceeds international standards for performance and weldability. Our customers across power generation, chemical processing, and industrial fabrication sectors rely on ER330 to deliver consistent, long-lasting welds that withstand demanding operational conditions.

The high nickel and chromium content in ER330 stainless steel wire provides exceptional resistance to carburization and oxidation, making it a preferred choice for welding castings and wrought components exposed to thermal shock. It exhibits excellent weld puddle control and bead appearance, ensuring both aesthetic quality and functional integrity. The alloy’s superior ductility and toughness further enhance its suitability for maintenance, repair, and fabrication of furnace parts, heat exchangers, and mufflers.

At Metals And Welding Specialities, we understand that precision in welding materials directly impacts productivity and performance. That’s why our ER330 MIG & TIG wire is manufactured to deliver repeatable results under the most challenging conditions. It conforms to the AWS A5.9 specification, ensuring compatibility with a wide range of base metals and welding systems. Whether you’re performing automated production welding or manual repairs, this filler metal provides the reliability and consistency professionals demand.

Investing in ER330 MIG & TIG Welding Wire wire means securing a long-term solution that reduces downtime, improves weld life, and enhances operational efficiency in high-temperature environments. For projects where failure is not an option, trust Metals And Welding Specialities to deliver materials that perform beyond expectations.

• Specification ER330 MIG & TIG Welding Wire

  Classification	AWS A5.9, ER330
  Form	MIG spools, TIG cut lengths, Reels and Coils
  Type Of Welding	Inert Gas Welding
  Current	MIG-DCEP / TIG-DCEN
  Diameters	.023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8”
  Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
  AWS ER320LR MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

• Equivalent Grade Of AWS ERCuNi MIG & TIG

  Class	UNS	Oxford Alloys
  ER330	N08331	Alloy 330

• ER330 MIG & TIG Welding Wire Chemical Composition

  C	Cr	Ni	Mo	Mn	Si	P	S	Cu
  0.18-0.25	15.0-17.0	34.0-37.0	0.75	1.0-2.5	0.30-0.65	0.03	0.03	0.75

• ER330 MIG & TIG Welding Wire Parameters

  Diameter		Process	Volt	Amps	GAS
  in	(mm)
  .035	(1.6)	GTAW	12-15	60-90	Argon 100%
  .045	(1.14)	GTAW	13-16	80-110	Argon 100%
  1/16”	(1.6)	GTAW	14-16	90-130	Argon 100%
  3/32”	(2.4)	GTAW	15-20	120-175	Argon 100%
  .035	(.9)	GMAW	17-20	70-90	75% Argon, 25% Helium
  .045	(1.14)	GMAW	18-22	75-160	75% Argon, 25% Helium

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