Welcome to WeldingMart’s comprehensive collection of flux core welding wire, where reliability, precision, and performance come together to deliver exceptional results for all your welding applications. Whether you’re a professional welder or a DIY enthusiast, our selection of flux core wire and cored welding wire ensures clean, strong welds with or without shielding gas. From gasless flux core welding wire to flux core MIG welding wire, we offer a wide variety of options tailored to meet your specific welding needs.
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Lincoln SC347-12 Supercore 347 Flux-cored FCAW-G Welding Wire
$954.00Unit price /UnavailableUsed to weld titanium and niobium stabilized 18/8 stainless steel types 321 and 347-
Lincoln ED037125 UltraCore 308L P Flux-Cored FCAW-G Welding Wire, 0.045 in, 33 lb Spool
$570.57Unit price /UnavailableSmooth arc action with minimal spatter reduces post-weld cleaning -
Lincoln ED037130 UltraCore 316L P Flux-Cored FCAW-G Welding Wire, 1/16 in, 33 lb Spool
$654.72Unit price /UnavailableSmooth arc action with minimal spatter reduces post-weld cleaning -
Lincoln ED036678 Innershield NR-232-H Flux-Cored FCAW-S Welding Wire, 0.072 in, 25 lb Spool
$268.75Unit price /UnavailableInnershield® NR®-232-H from Lincoln Electric is designed for high deposition, out-of-position welding for structural fabrication in seismic zones. -
Lincoln ED037217 UltraCore 308L P Flux-Cored FCAW-G Welding Wire, 0.045 in, 10 lb Spool
$164.60Unit price /UnavailableSmooth arc action with minimal spatter reduces post-weld cleaning -
Lincoln ED036444 Lincore 55-G Flux-Cored FCAW-C Welding Wire, 0.045 in, 10 lb Plastic Spool
$135.40Unit price /UnavailableLincore® 55-G Flux-Cored Gas Shielded Wire designed for crane wheels, blower blades, bucket lips, dredge parts and tillage tools applications (Metal to Metal) 
Lincoln ED035566 Innershield NR-555 Flux-Cored FCAW-S Welding Wire, 5/64 in, 25 lb Spool
$261.75Unit price /UnavailableInnershield® NR®-555 from Lincoln Electric is designed for welding in structural applications.-
Lincoln ED035379 UltraCore 91K2M-H Plus Flux-Cored FCAW-G Welding Wire, 0.052 in, 33 lb Spool
$263.67Unit price /UnavailableUltraCore® 91K2M-H Plus from Lincoln Electric is capable of superior toughness at-60°F -
Lincoln ED035383 UltraCore 91K2C-H Plus Flux-Cored FCAW-G Welding Wire, 1/16 in, 33 lb Spool
$260.04Unit price /UnavailableUltraCore® 91K2M-H Plus from Lincoln Electric is capable of superior toughness at-60°F -
Lincoln ED034185 Innershield NR-305 Flux-Cored FCAW-S Welding Wire, 5/64 in, 25 lb Spool
$232.00Unit price /UnavailableInnershield® NR®-305 from Lincoln Electric is designed for in-position, high deposition welding on carbon steel. -
Lincoln ED033746 Pipeliner 111M Flux-Cored FCAW-G Welding Wire, 0.047 in, 25 lb Spool
$246.50Unit price /UnavailablePipeliner® 111M from Lincoln Electric is designed for hot, fill and cap pass welding on X80 to X100 grade pipe. -
Lincoln ED033990 UltraCore HD-M Flux-Cored FCAW-G Welding Wire, 0.052 Inch Diameter, 33 lb Spool.
$166.65Unit price /UnavailableUltraCore® HD-M from Lincoln Electric is a mild steel, gas-shielded flux-cored wire designed to provide high deposition rates and flat bead appearance. -
$381.60Unit price /UnavailableUltraCore® HD-M from Lincoln Electric is a mild steel, gas-shielded flux-cored wire designed to provide high deposition rates and flat bead appearance.
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Lincoln ED033808 Pipeliner 101M Flux-Cored FCAW-G Welding Wire, 0.047 in, 25 lb Spool
$235.50Unit price /UnavailablePipeliner® 101M from Lincoln Electric is designed for hot, fill and cap pass welding on up to X80 grade pipe. -
Lincoln ED032207 UltraCore 81Ni1A75-H Flux-Cored FCAW-G Welding Wire, 1/16 in, 33 lb Spool
$202.95Unit price /UnavailableUltraCore® 81Ni1A75-H from Lincoln Electric is designed for high strength, low-alloy applications using 75% Argon/25% CO2. -
Lincoln ED030642 Innershield NR-212 Flux-Cored FCAW-S Welding Wire, 0.068 in, 25 lb Spool
$224.00Unit price /UnavailableInnershield® NR®-212 from Lincoln Electric is recommended for single or multiple pass welding on up to 19 mm (3/4 in.) thicknesses. -
Lincoln ED031885 UltraCore 71A85 Flux-Cored FCAW-S Welding Wire, 0.045 in, 4 15 lb Plastic Spools
$318.60Unit price /UnavailableUltraCore® 71A85 from Lincoln Electric is designed specifically for use with high Argon mixed gas. -
Lincoln ED032204 UltraCore 81Ni1C-H Flux-Cored FCAW-G Welding Wire, 0.045 in, 33 lb Spool
$202.95Unit price /UnavailableUltraCore® 81Ni1C-H from Lincoln Electric is designed for high strength, low-alloy applications using 100% CO2 shielding gas. -
Lincoln ED029206 Outershield 71 Elite Flux-Cored FCAW-G Welding Wire, 1/16 in, 33 lb Spool
$224.40Unit price /UnavailableOutershield® 71 Elite from Lincoln Electric has a smooth arc transfer, low spatter and good bead appearance. -
Lincoln ED031115 Lincore BU Flux-Cored (FCAW-S) Welding Wire, 5/64 in, 25 lb Steel Spool
$266.50Unit price /UnavailableLincore® BU Flux-Cored Wire ideal for rebuilding worn parts to near final dimensions before applying final hardfacing layers which are more wear resistant. Can also be used as the final hardfacing layer for typical aplications applications on Cable sheaves, Crane wheels, Drums and pulleys (Build-Up) -
Lincoln ED031675 UltraCore 712A80 Flux-Cored FCAW-G Welding Wire, 0.045 in, 33 lb Spool
$175.23Unit price /UnavailableUltraCore® 712A80 is Lincoln Electric's best running E71T-12 product because of its superior arc characteristics and high impacts in a variety of applications. -
Lincoln ED030009 Outershield 71M Flux-Cored FCAW-G Welding Wire, 1/16 in, 33 lb Spool
$216.48Unit price /UnavailableOutershield® 71M from Lincoln Electric is an overall performer - from excellent feedability to good arc performance. -
Lincoln ED030650 Innershield NR-311 Ni Flux-Cored FCAW-S Welding Wire, 5/64 in, 25 lb Spool
$268.00Unit price /UnavailableInnershield® NR®-311 Ni from Lincoln Electric is designed to provide a nominal 1.5% nickel weld deposit with high deposition rates and fast travel. -
Lincoln ED030971 Innershield NR-305 Flux-Cored FCAW-S Welding Wire, 3/32 in, 25 lb Spool
$226.50Unit price /UnavailableInnershield® NR®-305 from Lincoln Electric is designed for in-position, high deposition welding on carbon steel. -
Lincoln ED012518 Innershield NR-232 Flux-Cored FCAW-S Welding Wire, 0.068 in, 4 13.5 lb Coils
$500.04Unit price /UnavailableInnershield® NR®-232 from Lincoln Electric is designed for high deposition, out-of-position welding for structural fabrication in seismic zones. -
Lincoln ED022659 Outershield 71M Flux-Cored FCAW-G Welding Wire, 0.045 in, 25 lb Spool
$173.25Unit price /UnavailableOutershield® 71M from Lincoln Electric is an overall performer - from excellent feedability to good arc performance. -
Lincoln ED019887 Lincore 60-O Flux-Cored FCAW-S Welding Wire, 5/64 in, 50 lb Coil
$1,195.50Unit price /UnavailableLINCORE® 60-O Flux-Cored Self-Shielded Wire is designed for bucket lips, crusher hammers, ore chutes, dozer blades and ripper teeth applications (Metal to Earth)
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Lincoln ED026805 Outershield 71M Flux-Cored FCAW-G Welding Wire, 0.035 in, 25 lb Spool
$189.00Unit price /UnavailableOutershield® 71M from Lincoln Electric is an overall performer - from excellent feedability to good arc performance. -
Lincoln ED026804 Outershield 71M Flux-Cored FCAW-G Welding Wire, 0.035 in, 10 lb Spool
$87.75$89.30Unit price /UnavailableOutershield® 71M from Lincoln Electric is an overall performer - from excellent feedability to good arc performance. -
Lincoln ED021604 Innershield NR-203MP Flux-Cored FCAW-S Welding Wire, 5/64 in, 4 14 lb Coils
$593.60Unit price /UnavailableInnershield® NR®-203MP from Lincoln Electric is designed to handle poor fit-up on heavy wall tubes and gaps up to 9.5 mm (3/8 in.) with 6.4 mm (1/4 in.) offset. -
Lincoln ED023366 Innershield NR-208-H Flux-Cored FCAW-S Welding Wire, 5/64 in, (4) 14 lb Coils
$15,993.60Unit price /UnavailableInnershield® NR®-208-H from Lincoln Electric is designed to create high strength weld deposits with yield strength test results exceeding minimum AWS requirements. -
Lincoln ed012629 innershield nr-311 flux-cored (fcaw-s) welding wire, 3/32 in, 50 lb coil
$390.00Unit price /UnavailableInnershield® NR®-311 from Lincoln Electric is designed for high deposition rates and fast travel speeds. -
Lincoln ED012799 Outershield 71 FLUX-CORED FCAW-G Steel Welding Wire 0.052 in 50 lbs COIL
$19,950.00Unit price /UnavailablePremium 0.052" flux-cored gas-shielded welding wire featuring smooth arc transfer and fast-freezing slag for superior all-position welding capability. This professional 50 lbs coil meets AWS D1.8 seismic requirements and delivers exceptional performance in shipbuilding, heavy equipment, and structural fabrication with both CO₂ and mixed gas shielding.
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Lincoln ED034071 UltraCore 71A85 flux-cored FCAW-G welding wire, 0.045 inch diameter, 50 lb spool.
$180.64Unit price /Unavailable
Aluminum Welding Wire
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Lincoln W000403773 UltraCore 360 C71 Flux-Cored FCAW-G Welding Wire, 1/16 in, 33 lb Spool
$154.11Unit price /UnavailableUltraCore 360 C71 flux cored welding wire from Lincoln Electric is a mild steel, gas-shielded flux-cored wire designed to protect the flux core from environmental exposure helping to maintain low diffusible hydrogen and extend shelf life. -
Lincoln W000403772 UltraCore 360 C71 Flux-Cored FCAW-G Welding Wire, 0.052 in, 33 lb Spool
$8,349.00Unit price /UnavailableUltraCore 360 C71 flux cored welding wire from Lincoln Electric is a mild steel, gas-shielded flux-cored wire designed to protect the flux core from environmental exposure helping to maintain low diffusible hydrogen and extend shelf life.
Flux Core Wire for Gasless MIG & FCAW Applications
Discover our premium selection of flux core welding wires designed for gasless MIG and Flux-Cored Arc Welding (FCAW) processes. Whether you're a professional welder or a DIY enthusiast, our products ensure strong, clean welds without the need for external shielding gas.
What is Flux Core Welding Wire?
Flux core welding wire is a type of consumable electrode used in welding that contains a flux compound within its core. This design eliminates the need for a separate shielding gas, making it ideal for outdoor and windy conditions where gas shielding can be challenging.
Advantages of Using Flux Core Wire
- Portability: No need for gas cylinders, enhancing mobility.
- Performance: Excellent penetration and bead quality.
- Versatility: Suitable for various positions and materials.
Our Top Flux Core Welding Wires
Explore our range of flux core wires tailored to meet diverse welding needs:
Gasless Flux Core Welding Wire
Designed for outdoor and windy environments, our gasless flux core welding wire ensures excellent weld quality without the need for external shielding gas. It’s perfect for fieldwork, repairs, and structural applications.
Flux Core MIG Welding Wire
For MIG welding applications, flux core MIG welding wire delivers consistent performance and clean welds. Popular options include:
- 0.035" Flux Core Wire: Ideal for thicker materials and heavy-duty welding.
- 0.030" Flux Core Wire: Suitable for medium thickness materials and general-purpose welding.
Why Choose WeldingMart?
At WeldingMart, we are committed to providing high-quality welding supplies that meet industry standards. Our flux core welding wires are sourced from reputable manufacturers, ensuring reliability and performance. Additionally, we offer:
- Expert Support: Our knowledgeable team is here to assist with any questions.
- Fast Shipping: Prompt delivery to keep your projects on schedule.
- Competitive Pricing: Quality products at affordable prices.
Frequently Asked Questions
Can I use flux core wire with my MIG welder?
Yes, most MIG welders can accommodate flux core wire. Ensure your welder is set up for flux-cored welding, which typically involves switching the polarity to DCEN (Direct Current Electrode Negative).
What materials can I weld with flux core wire?
Flux core wire is commonly used for welding mild steel and galvanized steel. It's suitable for various applications, including structural work, fabrication, and repair tasks.
Do I need to remove slag after welding with flux core wire?
Yes, flux core welding produces a slag covering over the weld bead that should be removed after welding to inspect the weld and prepare the surface for any subsequent coatings or treatments.
Learn More About Flux Core Welding
For a comprehensive guide on gasless flux core welding, watch the video below:
Flux Core Wire for Gasless MIG & FCAW Applications
Discover our premium selection of flux core welding wires designed for gasless MIG and Flux-Cored Arc Welding (FCAW) processes. Whether you're a professional welder or a DIY enthusiast, our products ensure strong, clean welds without the need for external shielding gas.
What is Flux Core Welding Wire?
Flux core welding wire is a type of consumable electrode used in welding that contains a flux compound within its core. This design eliminates the need for a separate shielding gas, making it ideal for outdoor and windy conditions where gas shielding can be challenging.
Advantages of Using Flux Core Wire
- Portability: No need for gas cylinders, enhancing mobility.
- Performance: Excellent penetration and bead quality.
- Versatility: Suitable for various positions and materials.
Our Top Flux Core Welding Wires
Explore our range of flux core wires tailored to meet diverse welding needs:
Gasless Flux Core Welding Wire
Designed for outdoor and windy environments, our gasless flux core welding wire ensures excellent weld quality without the need for external shielding gas. It’s perfect for fieldwork, repairs, and structural applications.
Flux Core MIG Welding Wire
For MIG welding applications, flux core MIG welding wire delivers consistent performance and clean welds. Popular options include:
- 0.035" Flux Core Wire: Ideal for thicker materials and heavy-duty welding.
- 0.030" Flux Core Wire: Suitable for medium thickness materials and general-purpose welding.
Why Choose WeldingMart?
At WeldingMart, we are committed to providing high-quality welding supplies that meet industry standards. Our flux core welding wires are sourced from reputable manufacturers, ensuring reliability and performance. Additionally, we offer:
- Expert Support: Our knowledgeable team is here to assist with any questions.
- Fast Shipping: Prompt delivery to keep your projects on schedule.
- Competitive Pricing: Quality products at affordable prices.
Frequently Asked Questions
Can I use flux core wire with my MIG welder?
Yes, most MIG welders can accommodate flux core wire. Ensure your welder is set up for flux-cored welding, which typically involves switching the polarity to DCEN (Direct Current Electrode Negative).
What materials can I weld with flux core wire?
Flux core wire is commonly used for welding mild steel and galvanized steel. It's suitable for various applications, including structural work, fabrication, and repair tasks.
Do I need to remove slag after welding with flux core wire?
Yes, flux core welding produces a slag covering over the weld bead that should be removed after welding to inspect the weld and prepare the surface for any subsequent coatings or treatments.
Learn More About Flux Core Welding
For a comprehensive guide on gasless flux core welding, watch the video below:
