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Type | Chemical Composition | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
ANSA520 | GBT8110 | C | Mn | Si | P | S | Ni | Cr | Mo | V | Cu |
E71T-1 E71T-1C E71T-1M | ≤0.12 | ≤1.75 | ≤0.90 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.20 | ≤0.30 | ≤0.08 | ≤0.35 | |
E71T-G E71T-GS | |||||||||||
E500T-1 E5O0T-1M E501T-1 E501T-1M | ≤0.18 | ||||||||||
E500T-G E501T-G | |||||||||||
E71T-11 | ≤0.30 | ≤0.60 | |||||||||
E71T-11 | E500T-1 E501T-11 | ... | |||||||||
Note: symbols The third number X after E, indicates the welding position,where "0" means Flat and transversewelding,"1" means all position,and the letter C indicates is c02 or of a self-protective type;Mindicates that the protective gas is 75~80% ar and rest CO2;Aluminum composition requirementis limited to self-shielded flux-cored wire (E71T-G/E71T-GS/E71T-11---AIS 1.80). |
Type | Mechanical Properties | ||||
---|---|---|---|---|---|
AWS A5.20 | GBT10045/2001 | Tensile Strength Mpa | Yield Strength Mpa | Elongation A ( % ) | Impact Value KV2 (J)-30℃ |
E71T-1 E71T-1C E71T-1M | E500T-1 E500T-1M E501T-1 E501T-1M E500T-G E501T-G | 490~670 | ≥ 390 | ≥22 | ≥27 |
E71T-GS | ≥490 | ... | .... | ||
E71T-11 | ES00T-11 ES01T-11 | 490~670 | ≥390 | ≥20 | .... |
1)Classification System: The AWS A5.20 standard uses a specific code to classify flux-cored electrodes. For example, a classification like E71T-1 breaks down into several parts that describe the electrode's characteristics, including its tensile strength, welding position, and flux composition.
2)The "E" Prefix: The classification begins with the letter "E," which is a standard AWS designation for an electrode. This indicates that the product is a consumable filler metal intended for use in an arc welding process.
3)Tensile Strength: The first two digits, such as "71" in E71T-1, denote the minimum tensile strength of the deposited weld metal in thousands of pounds per square inch (ksi). "71" corresponds to a tensile strength of 70,000 psi (490 MPa).
Name | Size | Update | Thumbnail | Download |
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Welding Wire Catalogue-giant weld.pdf | 5.54MB | 2025-08-17 | |
The classification system uses a specific alphanumeric code to provide detailed information about the wire's characteristics.
A typical classification, like **E71T-1**, can be broken down to understand its properties, including the wire's tensile strength, welding position, and flux type.
This standardized approach makes it easy to identify the ideal **welding wire** for different base metals and welding environments.
The "E" at the beginning stands for **electrode**, a standard designation for all AWS welding consumables.
The first two digits, such as "71" in **E71T-1**, indicate the minimum tensile strength of the deposited weld metal, in this case, 70,000 psi.
The letter "T" signifies that it is a **tubular, flux-cored electrode**.
The number or letter that follows, for example, the "1" in **E71T-1**, specifies the usability of the wire, including the required shielding gas and the welding position it can be used in.
Finally, an optional suffix may denote the type of shielding gas used, such as "C" for 100% CO2 or "M" for a mixed gas like Argon/CO2.
Flux-cored wires are primarily categorized by their shielding method: self-shielded or gas-shielded.
Also known as **FCAW-S**, this type of wire is designed for use without an external shielding gas.
The flux core contains all the necessary ingredients to protect the weld pool from the atmosphere.
These wires, such as **E71T-11** and **E71T-8**, are ideal for outdoor welding and fieldwork where using a gas cylinder is impractical.
They produce a high-quality weld even in windy conditions, making them a popular choice for construction and general-purpose fabrication.
Also known as **FCAW-G**, these wires are designed to be used with an external shielding gas, typically CO2 or a C25 mix.
The flux in the core provides additional deoxidizers and slag formers, which enhances the weld's mechanical properties and appearance.
Wires like **E71T-1** and **E71T-5** are known for their high deposition rates and excellent weld quality, making them suitable for heavy fabrication, shipbuilding, and pressure vessel manufacturing.