ER80S-B6 MIG & TIG Welding Wire

At Metals And Welding Specialities, we supply premium-quality ER80S-B6 welding wire designed for superior performance in high-temperature and high-pressure environments. Engineered to meet the demanding requirements of modern fabrication and maintenance applications, this wire offers outstanding strength, oxidation resistance, and creep resistance when exposed to elevated service temperatures. Manufactured to the highest industry standards, our ER80S-B6 MIG and TIG wire ensures consistent weld quality, smooth arc characteristics, and minimal spatter during operation.

The ER80S-B6 filler wire corresponds to UNS K12079 and conforms to ASTM A337 Grade B6 specifications. It is primarily used for welding 5% chromium and 0.5% molybdenum steels commonly found in power generation, petrochemical, and refinery piping systems. These materials are chosen for their ability to withstand thermal fatigue and resist scaling, making ER80S-B6 ideal for joining and overlaying components that face continuous exposure to steam, gas, or heat treatment cycles.

Professionals rely on Metals And Welding Specialities for ER80S-B6 wire because of its consistent chemical composition, controlled carbon content, and clean surface finish. The filler metal provides excellent mechanical properties after post-weld heat treatment, maintaining tensile strength and toughness even at temperatures up to 600°C (1110°F). Whether used in MIG (GMAW) or TIG (GTAW) applications, the wire delivers a stable arc, easy wetting action, and uniform bead appearance, reducing the need for rework and improving productivity in fabrication shops.

Our ER80S-B6 welding wire is widely used for critical applications such as boiler tubes, pressure vessels, heat exchangers, and furnace parts. It ensures strong metallurgical bonding with base metals containing chromium and molybdenum, maintaining weld integrity under thermal cycling. The filler’s optimized silicon and manganese levels promote deoxidation and provide clean, sound weld deposits with excellent impact resistance.

At Metals And Welding Specialities, every spool of ER80S-B6 is precision-drawn, copper-coated, and vacuum-packed to preserve wire quality and ensure smooth feedability through automated or manual welding systems. Available in various diameters, our wire meets the performance requirements of both structural and repair welding across diverse industries. When strength, heat resistance, and reliability matter most, our ER80S-B6 welding wire is the trusted choice for professionals demanding unmatched results.

• Specification ER80S-B6 MIG & TIG Welding Wire

  Classification	AWS A5.28, ER80S-B2
  Form	MIG spools, TIG cut lengths, Reels and Coils
  Type Of Welding	Inert Gas Welding
  Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
  AWS ER80S-B2 MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

• Equivalent Grade Of ER80S-B6 MIG & TIG Welding Wire

  Class	UNS	Oxford Alloys	BOHLER
  ER80S-B2	K20900	Alloy 80S-B2	UNION ER80S-B2

• ER80S-B6 MIG & TIG Welding Wire Chemical Composition

  C	Mn	Si	Cr	Mo	P	S	Cu
  .09	.55	.48	1.35	.55	.012	.006	.15

• ER80S-B6 MIG & TIG Welding Wire Parameters

  PROCESS	DIA. OF WIRE	AMPERAGE	VOLTAGE	GAS/FLUX
  	1/16”	50-120	7-13	Ar
  GTAW (TIG)	3/32”	120-200	10-16	Ar
  	1/8”	150-220	12-18	Ar
  GMAW (MIG) SHORT ARC	.035” .045” 1/16”	90-160 120-200 -	14-20 16-20 -	CO2 CO2 or 75 Ar / 25 CO2 CO2 or 75 Ar / 25 CO2
  GMAW (MIG)	.035”	180-230	25-28	98 Ar / 2 O2
  SPRAY	.045”	250-350	25-30	75 Ar / 25 CO2
  TRANSFER	1/16”	280-400	26-36	75 Ar / 25 CO2
  SUBMERGED	3/32”	250-400	28-32	UV420TTR
  ARC	1/8”	400-600	30-34	UV420TTR

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