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AWS A5.10 · A5.17 · A5.20 · A5.29 Certified

TOKO Welding Wires Flux-Cored · SAW · Aluminum

Premium AWS-certified welding wires — flux-cored E71T-GS, E71T-1C, E71T-5C, E81T1-K2C; SAW wire EM12K; aluminum ER4043 & ER5356. Trusted by shipbuilding, cryogenic, structural and aluminum fabricators in 30+ countries.

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ISO 9001:2015 · Bureau Veritas Down to -60°C Cryogenic Grade 30+ Export Countries 24h Quote Response

Flux-Cored Welding (FCW) Wires

Four AWS-certified flux-cored wires — from gasless self-shielded to cryogenic grade down to -60°C.

TOKO E71T-GS Self-Shielded Flux-Cored Wire

TOKO E71T-GS — Self-Shielded Flux-Cored Wire

TOKO E71T-GS is a self-shielding, all-position flux-cored welding wire designed for single-pass applications. It requires no external shielding gas, making it ideal for field welding and outdoor environments where gas shielding is impractical.

Key Specifications
  • AWS Standard: A5.20 E71T-GS
  • Shielding: Self-shielded (gasless)
  • Polarity: DC straight polarity — minimizes burn-through risk
  • Position: All-position

Applications: Lap and fillet welds on thin mild and galvanized steels; agriculture, construction, production.

Key Advantage: Excellent on thin materials with minimal risk of burn-through — perfect for 240V MIG machines and general-purpose welding.

AWS A5.20 Self-Shielded All-Position E71T-GS
Technical Datasheet
TOKO E71T-1C CO2 Gas-Shielded Flux-Cored Wire

TOKO E71T-1C — CO₂ Gas-Shielded Flux-Cored Wire

TOKO E71T-1C is a CO₂ gas-shielded flux-cored wire specifically engineered for steel structure fabrication. It is commonly used across construction, shipbuilding, automotive and manufacturing industries.

Key Specifications
  • AWS Standard: A5.20 E71T-1C
  • Shielding: CO₂ gas
  • Tensile Strength: 490–670 MPa
  • Impact Toughness: -20°C

Applications: Steel structure fabrication, construction, shipbuilding, automotive.

Key Advantage: Reliable mechanical properties with excellent toughness at low temperatures.

AWS A5.20 CO₂ Shielded -20°C Impact E71T-1C
Technical Datasheet
TOKO E71T-5C Shipbuilding Flux-Cored Wire

TOKO E71T-5C — Shipbuilding & Heavy Fabrication Wire

TOKO E71T-5C is a CO₂ gas-shielded flux-cored wire optimized for shipbuilding and heavy fabrication. With superior low-temperature impact toughness, it is the go-to choice for demanding structural applications.

Key Specifications
  • AWS Standard: A5.20 E71T-5C
  • Shielding: CO₂ gas
  • Tensile Strength: 490–670 MPa
  • Impact Toughness: -30°C

Applications: Shipbuilding, heavy structural fabrication, offshore engineering.

Key Advantage: Exceptional low-temperature performance (-30°C) for marine and heavy industry applications.

AWS A5.20 -30°C Impact Shipbuilding Grade E71T-5C
Technical Datasheet
TOKO E81T1-K2C Cryogenic Flux-Cored Wire

TOKO E81T1-K2C — High-Strength Cryogenic Wire

TOKO E81T1-K2C is a high-strength, low-temperature flux-cored wire designed for cryogenic applications down to -60°C. When extreme conditions demand exceptional performance, this wire delivers.

Key Specifications
  • AWS Standard: A5.29 E81T1-K2C
  • Tensile Strength: 550–690 MPa
  • Impact Toughness: -60°C

Applications: Cryogenic structures, LNG storage, low-temperature service equipment.

Key Advantage: Unmatched impact toughness at -60°C — engineered for the most extreme low-temperature environments.

AWS A5.29 -60°C Impact Cryogenic Grade E81T1-K2C
Technical Datasheet

Submerged Arc Welding (SAW) Wire

Workhorse wire for heavy fabrication — matched with SJ101 flux for smooth arc action and excellent mechanical properties.

TOKO EM12K Submerged Arc Welding Wire

TOKO EM12K — The Workhorse SAW Wire

TOKO EM12K is a copper-coated carbon-steel solid wire for submerged arc welding. It is the workhorse wire for fabricators worldwide — from heavy plate rolling mills to offshore jacket fabrication.

Formulated to provide smooth arc action, easy slag release, and excellent mechanical properties with standard fluxes like F7A2, F7A4 and F6A2.

Key Specifications
  • AWS Standard: A5.17 EM12K
  • Flux Match: SJ101 (recommended)
  • Wire Diameter: 2.4–4.0 mm
  • Mn Content: 1.25–1.75%
  • Si Content: 0.30–0.60%

Applications: Heavy fabrication, beams, offshore jacket fabrication, carbon and C-Mn steels.

Key Advantage: Versatile, general-purpose SAW wire suitable for joining a wide range of non-alloyed steels with various fluxes.

AWS A5.17 Copper-Coated SAW EM12K
Technical Datasheet

Aluminum MIG/TIG Wires

AWS A5.10 certified aluminum wires — ER4043 for excellent fluidity, ER5356 for higher strength marine and structural applications.

TOKO ER4043 Aluminum-Silicon Alloy Wire

TOKO ER4043 — Aluminum-Silicon Alloy Wire

TOKO ER4043 is an AlSi5 alloy wire designed for welding 6XXX series aluminum alloys. It offers excellent fluidity and is the most popular choice for general-purpose aluminum welding.

Key Specifications
  • AWS Standard: A5.10 ER4043
  • Alloy: AlSi5
  • Melting Range: 573–625°C

Applications: 6XXX series aluminum alloys, electrical, chemical, sports equipment, furniture, bicycle manufacturing.

Key Advantage: Low melting temperature, low shrinkage rate, higher fluidity, and excellent hot cracking resistance.

AWS A5.10 AlSi5 6XXX Series ER4043
Technical Datasheet
TOKO ER5356 Aluminum-Magnesium Alloy Wire

TOKO ER5356 — Aluminum-Magnesium Alloy Wire

TOKO ER5356 is an AlMg5 alloy wire offering higher strength and stiffness compared to ER4043. It is widely used in marine, automotive, and structural aluminum welding applications.

Key Specifications
  • AWS Standard: A5.10 ER5356
  • Alloy: AlMg5
  • Tensile Strength: 438 N/mm²
  • Elongation: ≥18%

Applications: Marine, automotive, structural aluminum, general-purpose welding.

Key Advantage: Higher strength, ductility and toughness — stiffer wire for easier feeding and more rigid weld properties.

AWS A5.10 AlMg5 High Strength ER5356
Technical Datasheet

Why Choose TOKO

Five practical reasons fabricators, shipyards and EPC contractors keep TOKO welding wires on their approved vendor lists.

AWS-Certified

All products comply with AWS A5.10, A5.17, A5.20, A5.29 — full MTC traceability

28+ Years Experience

Decades of innovation in welding consumables manufacturing

Global Reach

Serving 30+ countries worldwide, with multilingual support

AI-Driven Manufacturing

C2F ecosystem reduces lead times by up to 30%

Complete Product Range

Flux-cored, solid MIG/TIG, SAW, aluminum wires and welding flux

Product Summary

Quick reference for the TOKO welding wire range — AWS standard, key feature, best-fit application.

TOKO welding wires — product, standard, key feature and best-fit application
Product AWS Standard Key Feature Best For
E71T-GSA5.20Self-shielded, gaslessField welding, thin materials
E71T-1CA5.20CO₂ shieldedSteel structure fabrication
E71T-5CA5.20-30°C impactShipbuilding, heavy fabrication
E81T1-K2CA5.29-60°C impactCryogenic applications, LNG
EM12KA5.17SAW, copper-coatedHeavy plate, offshore fabrication
ER4043A5.10AlSi5, excellent fluidity6XXX aluminum alloys
ER5356A5.10AlMg5, high strengthMarine, automotive aluminum

Resources & Technical Documents

Download Mill Test Certificates (MTC) for each wire product or access the complete AWS database.

E71T-GS MTC E71T-1C MTC E71T-5C MTC E81T1-K2C MTC EM12K MTC ER4043 MTC ER5356 MTC Complete AWS Database

All product specifications are based on TOKO's published AWS certifications. For complete technical data and Mill Test Certificates (MTC), visit www.tokoc.com/aws.htm.

Welding Wire FAQs

Answers to the questions procurement teams, QA/QC managers and welding engineers ask most often about TOKO welding wires.

What flux-cored wires does TOKO manufacture?

TOKO manufactures AWS-certified flux-cored wires including E71T-GS (self-shielded, gasless), E71T-1C (CO₂ shielded for steel structures), E71T-5C (shipbuilding grade with -30°C impact), and E81T1-K2C (cryogenic grade with -60°C impact). All are available in standard diameters 1.2, 1.4 and 1.6 mm.

Which aluminum welding wires does TOKO supply?

TOKO supplies AWS A5.10 certified aluminum wires: ER4043 (AlSi5 alloy for 6XXX series with excellent fluidity) and ER5356 (AlMg5 alloy with higher strength for marine, automotive and structural applications). Both are available as MIG and TIG wires in diameters 0.8–1.6 mm.

What is TOKO EM12K SAW wire used for?

TOKO EM12K is a copper-coated carbon-steel solid wire per AWS A5.17, used for submerged arc welding of heavy plate, beams, and offshore jacket fabrication. It is typically matched with SJ101 flux for smooth arc action and excellent mechanical properties.

Are TOKO welding wires AWS-certified?

Yes. All TOKO welding wires are manufactured to AWS A5.10, A5.17, A5.20 and A5.29 specifications under ISO 9001:2015 certified production. Every batch is supplied with a Mill Test Certificate (MTC) for full traceability. Read about our quality control system →

How can I request an MTC or quote for TOKO welding wires?

Request an MTC or quote by email at office@tokoc.com, by phone at (+86) 510-8359 5138, or through our contact page. Our sales engineers respond within one business day with technical proposals and pricing.

Request Welding Wire Quote in 24 Hours

Send us your classification, diameter and packing requirements — our sales engineers will return product recommendations, MTC samples and factory pricing within one business day.

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