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TKweld 2025 E71T-1C Flux Cored Carbon Steel Welding Wire is designed to deliver reliable, consistent performance for a wide range of welding tasks. This welding wire is ideal for professionals, repair shops, and hobbyists who need a dependable filler material for carbon steel. Available in 1.0mm and 1.2mm diameters, the product fits most MIG/TIG hybrid and flux-cored welding setups and works well in both automated and manual welding environments
Built for strength and smooth welds, the TKweld E71T-1C formula provides good deposition rates and excellent gap-bridging ability, which makes it a great choice for thicker materials and multi-pass welds. The flux-cored design means it generates its own shielding gas on contact, allowing for welding outdoors or in drafty conditions where external gas protection might be unreliable. This makes it particularly useful for fieldwork, construction sites, pipeline repair, and heavy fabrication tasks where wind or limited access would make gas shielding impractical
Customers can choose between 1.0mm and 1.2mm wire diameters depending on their application and equipment. The 1.0mm wire is perfect for lighter fabrication, thin to medium thickness metal, and projects requiring finer control and cleaner starts. The 1.2mm wire is tailored for heavier fabrication work, providing faster deposition and deeper penetration on thicker plates. Both sizes are balanced for stable arc performance and minimize spatter compared to many alternatives, saving cleanup time and improving overall productivity
TKweld makes these spools with consistent manufacturing standards to ensure smooth feeding and minimal bird-nesting during welding. Each spool is wound precisely to prevent tangles and to maintain steady wire feed, a critical factor in achieving consistent bead quality and reliable arc stability. The wire is also tested for roundness and dimensional accuracy, so it fits smoothly through liners and contact tips, reducing downtime and consumable waste
One of the key benefits of TKweld’s flux-cored E71T-1C wire is its versatility. It performs well on a range of carbon steels including mild steel and low-alloy steels. The deposited weld metal offers good mechanical properties such as tensile strength and toughness suitable for structural applications. This makes it a solid choice for repair work, fabrications, and structural welding that require sound, durable joints that meet standard industry requirements
Another significant advantage is the product’s adaptability for OEM customization. TKweld offers customizable spools that can be tailored to match specific customer needs, such as spool size, packaging, labeling, and wire diameter. OEM customization options allow businesses to brand spools for resale, match specific feed system requirements, or prepare product batches for specialized industrial applications. This flexibility makes TKweld a strong partner for distributors, manufacturers, and large-scale welding operations seeking tailored welding consumables
Storage and handling are straightforward: the spools are designed for secure stacking and shipping, with protective packaging that helps reduce exposure to moisture and contaminants. Proper storage in a dry environment will maintain the wire’s performance over time. For best results, keep spools sealed until use and handle them carefully to avoid kinks or damage to the wire surface, which could affect feed performance
Safety and performance considerations are built into the TKweld E71T-1C product design. The wire’s flux composition and coating are formulated to produce consistent slag formation and easy slag removal, which speeds cleaning between passes and contributes to a cleaner finished weld. The slag peels away in a predictable way, reducing the chance of undercutting or trapped slag. Welders will appreciate the smooth arc characteristics and controllable bead shape that lead to visually consistent and structurally sound welds
For those concerned with efficiency, the deposition rate of TKweld E71T-1C is competitive, enabling faster welding speeds without compromising weld quality. That translates to time savings on large jobs and reduced labor costs. Combined with reduced spatter and easy slag removal, the wire helps lower overall project costs through less rework and fewer consumable replacements
Compatibility is broad: the wire is suitable for inverter-based MIG/Flux-Cored welding machines and conventional wire feed systems. It is recommended to select proper amperage settings and wire-feed speeds for the specific wire diameter and material thickness. Using the correct contact tips, liners, and drive rolls for the 1.0mm or 1.2mm options will ensure optimal feed reliability and arc stability
The TKweld 2025 E71T-1C Flux Cored Carbon Steel Welding Wire delivers solid performance for a wide range of welding applications. Available in 1.0mm and 1.2mm diameters, it provides dependable deposition, good mechanical properties, reliable slag control, and versatile use in outdoor and indoor conditions. With OEM customization options, precise spool winding, and packaging designed for easy handling and storage, TKweld offers a practical and efficient solution for professionals and businesses who demand consistent welding results. Whether for structural fabrication, industrial repair, or fieldwork, TKweld E71T-1C is engineered to help welders achieve strong, clean, and dependable welds every time


Items |
C |
Mn |
Si |
S |
P |
|
Standard Value |
≤0.12 |
≤1.50 |
≤0.80 |
≤0.030 |
≤0.030 |
|
Case of Value |
0.04 |
1.28 |
0.38 |
0.006 |
0.011 |
|
Items |
Ni |
Cr |
Mo |
V |
||
Standard Value |
0.8 - 1.10 |
≤0.15 |
≤0.35 |
≤0.05 |
||
Case of Value |
0.90 |
/ |
/ |
/ |
Items |
Tensile Strength
Rm/MPa
|
Yield Strength Rel/Rp0.2 MPa |
Elongation A/% |
Charpy V-notch impact energy KV2(J)-30℃/-40℃ |
Standard Value |
490-620 |
≥400 |
≥20 |
≥27 |
Case of Value |
570 |
510 |
27 |
135/120 |
Wire Diameter mm |
Welding wire diameter (mm) |
1.0 |
1.2 |
1.4 |
1.6 |
|
Welding Range A
|
Plat Position |
120 - 250 |
120 - 300 |
150 - 400 |
180 - 450 |
|
Vertical Up Welding |
120 - 210 |
120 - 260 |
150 - 270 |
180 - 280 |
||
Overhead Welding |
200 - 250 |
200 - 300 |
220 - 300 |
250 - 300 |
||
Horizontal Welding |
120 - 230 |
120 - 280 |
150 - 320 |
180 - 350 |
||





