Premium FluxCored Welding Wire Factory Leading China Suppliers of E70T1 E71T1

Looking for reliable China suppliers of flux-cored welding wire? Our factory produces high-efficiency powder-cored and tubular wires, including gas-shielded and non-gas protection types, designed for shipbuilding and structural steel.

Product Details

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Product Details

Our premium Flux-Cored Welding Wire (powder-cored) is engineered for high-efficiency industrial applications, offering a versatile solution for both gas-shielded and self-shielded welding processes. Manufactured using a precision rolling process where a low-carbon or low-alloy steel strip is formed into a U-shape and filled with specialized welding powder, these wires ensure superior plasticity and consistent weld quality across various specifications.

Designed to meet rigorous international standards, our range includes both acidic and basic slag systems. The acid slag variant is optimized for all-position welding, making it an industry standard for shipbuilding, while the basic slag system provides exceptional purification effects for flat and fillet welding, ensuring high-strength bonds for carbon steel and low-alloy structural steels.

Detailed Parameters

AWS ClassificationE70T-1 / E71T-1 Standard ModelCB E70T-1 / CB E71T-1
Available Diameters1.2mm, 1.4mm, 1.6mm Current TypeDC+
Tensile Strength (Rm)≥ 480 MPa Yield Strength (Rel)≥ 400 MPa
Elongation (A%)≥ 22% Impact Value (KV2)≥ 27J (-20°C)
Carbon Content (C)≤ 0.18% Manganese (Mn)≤ 1.75%

Key Advantages

High Strength

Engineered for structural steels with tensile strengths higher than or equal to 490MPa.

High Efficiency

Superior deposition rates compared to solid wire, significantly reducing project timelines.

All-Position Welding

Acid slag systems allow for versatile welding in any position, ideal for complex shipbuilding.

Pure Weld Metal

Basic slag systems provide an excellent purification effect for cleaner, stronger joints.

Low Impurities

Strict control of Sulfur and Phosphorus (≤ 0.030%) to prevent weld cracking.

AWS Certified

Fully compliant with AWS standards, ensuring global compatibility and reliability.

Product Gallery

Management Platforms

Raw Material Control

Strict selection of low-carbon steel strips to ensure core plasticity.

Precision Rolling

U-shaped rolling and pressure mill technology for uniform diameter.

Powder Dosage

Automated filling systems to maintain precise chemical compositions.

Quality Certification

Full batch testing to meet AWS and international mechanical properties.

Packaging Security

Industrial-grade packaging to prevent moisture and oxidation.

Logistics Network

Global shipping capabilities for timely delivery of welding consumables.

Investment Return Comparison

Performance MetricSolid Welding WireFlux-Cored Wire
Deposition RateStandardVery High
Welding SpeedModerateFast
Position VersatilityLimitedExcellent (All-Position)
Purification EffectBasicAdvanced (Basic Slag)
Labor CostHigher (Slow)Lower (Fast)

Frequently Asked Questions

Q: What is the difference between gas-shielded and self-shielded flux-cored wire?

Gas-shielded wires require an external shielding gas (like CO2 or Argon) to protect the weld pool, while self-shielded wires contain flux that generates its own protective gas during welding.

Q: Which flux-cored wire is best for shipbuilding?

Acid slag flux-cored wire is highly recommended for shipbuilding due to its excellent performance in all-position welding and high efficiency.

Q: What does the AWS E71T-1 classification mean?

It indicates a flux-cored electrode with a minimum tensile strength of 70,000 psi, designed for carbon steel, with a specific slag system denoted by the 'T-1' suffix.

Q: Can I use DC- current for these welding wires?

Based on the technical specifications, these specific models (CB E70T-1/E71T-1) are designed for DC+ (Direct Current Electrode Positive).

Q: How does the basic slag system improve weld quality?

Basic slag systems provide a stronger purification effect, removing more impurities from the weld metal and resulting in superior mechanical properties.

Q: What are the available sizes for this flux-cored wire?

Our flux-cored welding wires are available in standard diameters of 1.2mm, 1.4mm, and 1.6mm to suit various industrial needs.

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