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TKweld presents a reliable and high-performance MIG welding wire line designed to meet the needs of fabricators, repair shops, shipyards, and industrial manufacturers. Our TKweld Customized Diameter ER50-6 and ER70S-6 CO2 gas welding wires are engineered for consistent feeding, smooth arc stability, excellent bead appearance, and dependable mechanical properties. Certified by CCS and NK, these wires deliver certified quality and traceability for critical projects with demanding standards.
Overview and Applications
TKweld ER50-6 and ER70S-6 welding wires are formulated for CO2 and mixed CO2 shielding gas applications on carbon steel, mild steel, and low-alloy steels. These wires are widely used in structural fabrication, shipbuilding, pipe welding (excluding high-alloy or stainless steel pipe), automotive parts, heavy machinery repair, construction, agricultural equipment, and general maintenance and fabrication work. The ER50-6 grade is ideal for applications requiring good notch toughness and acceptable strength at moderate welding parameters, while ER70S-6 is optimized for higher strength and excellent deposition characteristics at standard MIG settings.
Key Features
- Customized diameters: TKweld offers tailored wire diameters to suit your welding equipment and application needs. Available sizes allow precise matching for thin sheet welding up to heavy plate work. Custom diameter control ensures consistent feed and minimal spatter.
- Certified quality: CCS and NK certification confirm product compliance with recognized maritime and industrial standards, offering assurance for shipbuilding and offshore applications where certification and traceability matter.
- Smooth arc and low spatter: Formulated to provide a stable arc, easy weld pool control, and reduced spatter for cleaner welds and less post-weld cleanup.
- Uniform mechanical properties: Consistent chemical composition and controlled manufacturing deliver predictable tensile strength, yield strength, and elongation, meeting job specifications reliably.
- Excellent bead appearance: Produces uniform, attractive beads with good wetting and fusion, simplifying finishing and inspection.
- Good all-position performance: Designed to perform well in flat, horizontal, vertical, and overhead welding positions depending on wire diameter and welding parameters.
- Compatibility with CO2 and CO2-rich shielding gases: Optimized for pure CO2 or CO2-rich mixes, offering deep penetration and efficient deposition rates.
- Low hydrogen pickup: Manufactured and packaged to reduce moisture absorption and minimize hydrogen inclusion, helping to lower the risk of hydrogen-induced cracking in welds.
Material Compatibility
- Carbon steel: Reliable weldability and strong joint properties for carbon steel components.
- Mild steel: Smooth deposition for general-purpose mild steel fabrication and repair.
- Low-alloy steel: Suitable for many low-alloy steels used in structural and marine applications when matched with appropriate welding parameters and pre/post-heat procedures.
Mechanical and Metallurgical Performance
TKweld ER50-6 and ER70S-6 wires are produced to deliver stable tensile and yield strengths, reliable ductility, and acceptable toughness for a range of applications. The controlled alloying elements promote good weld metal strength while maintaining weldability for common fabrication tasks. Consistent chemistry ensures predictable metallurgical behavior, making these wires suitable for structural welding where uniform performance is needed.
Packaging and Handling
TKweld supplies the welding wires on spools or coils sized for manual feeding and automated welding systems. Packaging is moisture-resistant to preserve wire condition during storage and transportation. Custom diameter orders are clearly labeled with batch and certification information to support inventory control and traceability for quality management systems.
Quality Assurance and Certification
TKweld welding wires are manufactured under a strict quality control system. Each batch undergoes chemical analysis and mechanical testing to confirm compliance with the specified grade. CCS (China Classification Society) and NK (Nippon Kaiji Kyokai) certifications validate material integrity and suitability for maritime and offshore projects where such approvals are required. Certification documents accompany shipments upon request, ensuring customers can meet regulatory and contractual obligations.
Advantages for Fabricators and Welders
- Reduced rework: Stable arc and low spatter translate to less time spent on cleanup and grinding, increasing productivity.
- Consistent Feedability: Customized diameters and tight tolerances improve wire feeding reliability in semi-automatic and automatic MIG setups, reducing downtime.
- Economical deposition: Efficient metal transfer and good penetration help lower overall welding time and material consumption.
- Broad usability: A single wire grade family covers many standard applications, simplifying inventory and procurement.
- Certified for critical projects: CCS and NK certifications make TKweld wires suitable for projects where classification society approval is mandatory
Typical Welding Parameters and Recommendations
- Shielding gas: CO2 or CO2-rich mixes; adjust gas flow rates according to manufacturer and environmental conditions for optimal shielding.
- Voltage and current: Follow recommended parameters for each wire diameter and base material thickness; start at manufacturer guidelines and fine-tune for bead profile and penetration.
- Wire feed speed: Match wire feed to welding current for stable arc and desired deposition rate.
- Cleaning and preparation: Properly prepare joint surfaces by removing rust, oil, paint, and other contaminants to ensure good fusion and reduce defects.
- Storage: Keep wires in dry storage; use desiccant cabinets or sealed packaging for longer storage periods.
Ordering and Customization
TKweld offers flexible ordering options for standard and custom diameters to meet specific equipment and application needs. Customers can request certification documentation (CCS, NK) and traceability records with their orders. Contact TKweld sales representatives to specify diameter, spool size, packaging preferences, and required certifications.
TKweld’s Customized Diameter ER50-6 and ER70S-6 CO2 gas MIG welding wires combine dependable performance, certified quality, and practical flexibility for a wide range of carbon and mild steel welding tasks. With smooth arc characteristics, consistent mechanical properties, low spatter, and the backing of CCS and NK certifications, TKweld wires are a trusted choice for fabrication shops, shipbuilders, and industrial users seeking reliable welding consumables. Contact TKweld sales representatives to specify diameter, spool size, packaging preferences, and required certifications
Items |
C |
Mn |
Si |
S |
P |
Standard Value |
0.06-0.15 |
1.40 -1.85 |
0.80 -1.15 |
≤0.025 |
≤0.025 |
Case of Value |
0.08 |
1.50 |
0.89 |
0.012 |
0.013 |
Items |
Ni |
Cr |
Mo |
V |
Cu |
Standard Value |
≤0.15 |
≤0.15 |
≤0.15 |
≤0.03 |
≤0.50 |
Case of Value |
0.03 |
0.02 |
0.002 |
0.003 |
0.11 |
Items |
Tensile Strength
Rm/MPa
|
Yield Strength Rel/Rp0.2 MPa |
Elongation A/% |
Charpy V-notch impact energy KV2(J)-30℃ |
Standard Value |
≥500 |
≥420 |
≥22 |
≥27 |
Case of Value |
560 |
450 |
26 |
108 |
Welding wire diameter (mm) |
0.8 |
1.0 |
1.2 |
1.6 |
Welding current (A) |
50 - 180 |
70 - 230 |
80 - 350 |
120 - 500 |
A: We are the real professional welding machines supplier, which has production team, R&D team, sales force and after-sale service team. And we have our own welding robot laboratory for research and to provide free technical training
A:We have our own welding laboratory, which not only tests all welding torch but also provides customers with welding solutions, accumulates a large amount of data experience, and has absolute experience in product quality control
A: Yes, we have. One year warranty for welding torch
A: All of our products have CE/ ISO9001 quality certification which ensures the quality and safety. Our products are under strict quality management to ensure supreme quality
A: Packing in box, or as customer’s requirements
Q6: What is delivery time / lead time
A: The goods will be shipped within7-15 days after the receipt of your payment
A: 100pcs
A:1- 30% down payment for order confirmation, 70% before shipment. 2- 100% at sight LC
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