ER308/308H MIG & TIG Welding Wire

Metals And Welding Specialities is a trusted manufacturer and supplier of ER308/308H MIG & TIG Welding Wire wires, designed for superior welding performance in stainless steel fabrication. These wires conform to UNS S30800 / S30809 and ASTM A240 Grade 308/308H standards, ensuring excellent strength, corrosion resistance, and consistent weld integrity. As part of our commitment to precision and reliability, we produce these filler wires with tight chemical controls and optimized mechanical properties for high-temperature and high-pressure service conditions.

The ER308/308H wire is primarily used for welding austenitic stainless steels such as 18Cr-8Ni types. It provides outstanding resistance to oxidation and scaling at elevated temperatures and maintains exceptional mechanical properties even after prolonged exposure. The “H” designation indicates a higher carbon content, enhancing high-temperature creep strength and ensuring stable microstructure retention during long-term service. This makes ER308H ideal for applications in petrochemical plants, heat exchangers, power generation units, and industrial furnaces where thermal stability is essential.

Metals And Welding Specialities manufactures ER308/308H in both MIG (GMAW) and TIG (GTAW) variants, suitable for precision welding operations that demand clean and smooth bead appearance. Our wire features excellent arc stability, minimal spatter, and uniform feedability, contributing to better productivity and lower post-weld cleanup. The deposited weld metal delivers superior ductility and toughness, reducing the risk of cracking even under challenging thermal cycles. With its balanced chromium and nickel composition, this alloy performs exceptionally well against pitting, intergranular corrosion, and chemical attack in both oxidizing and reducing environments.

Our ER308/308H MIG & TIG Welding Wire filler metal is engineered to meet diverse industrial requirements. It is compatible with stainless steels such as AISI 301, 302, 304, 305, and 308, among others. For TIG welding, pure argon shielding gas ensures clean and controlled weld pools, while for MIG applications, argon with 2–5% oxygen or CO₂ blends provides optimal arc characteristics. Whether used in pipeline welding, chemical processing equipment, or food-grade vessels, this wire ensures welds of outstanding metallurgical integrity and visual quality.

Every spool and cut length from Metals And Welding Specialities undergoes stringent quality checks to guarantee performance consistency. Our production facilities follow international manufacturing practices and adhere to strict standards, making our ER308/308H welding wires a preferred choice for industries demanding precision and durability. When you choose Metals And Welding Specialities, you’re investing in reliability, technical excellence, and long-term operational value.

• Specification ER308/308H MIG & TIG Welding Wire

  Classification	AWS A5.9, ER308/308H
  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 ER308/308H MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

• Equivalent Grade Of ER308/308H MIG & TIG Welding Wire

  Class	UNS	Oxford Alloys
  ER308/308H	S30880	Alloy 308/308H

• ER308/308H MIG & TIG Welding Wire Chemical Composition

  Element	Composition (%)
  c	0.05
  si	0.46
  Mn	1.65
  Cr	20.45
  Ni	9.85
  Other	-

• ER308/308H MIG & TIG Welding Wire Parameters

  Recommended Welding Parameters
  GMAW “Mig Process”				Reversed Polarity
  	Wire Diameter	Wire Feed	Amps	Volts	Shielding Gas	Gas CFH
  Short Arc Welding	.030	13-26	40-120	16-20	Argon+2% O2	25
  	.035	13-26	60-140	16-22	Argon+2% O2	25
  Spray Arc Welding	.035	20-39	140-220	24-29	Argon+2% O2	38
  	.045	16-30	160-260	25-30	Argon+2% O2	38
  	1/16	10-16	230-350	27-31	Argon+2% O2	38

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