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AWS A 5.22 E308LT0-3
1kg,5kg,12.5kg,15kg
1lb;2lb;4.5lb;11lb;15lb;20lb;33lb;44lb
0.6mm;0.8mm;0.9mm;1.0mm;1.2mm;1.6;2.0mm
0.023;0.030in;0.035in;3/64″;0.045;1/16″;5/64″
D100,D200,D270,D300,BS300,K300
Acceptable (design the pack with your logo)
15 Days
Product Description
1）Classification: This is a self-shielded, flux-cored welding wire conforming to the AWS A5.22 standard, which specifies the requirements for stainless steel flux-cored electrodes.
2）Composition (E308L): The "E308L" designates the weld metal's chemical composition, primarily for welding 308L type stainless steels. The "L" indicates low carbon content, which minimizes carbide precipitation and provides excellent resistance to intergranular corrosion.
3）Welding Position (T0): The "T0" signifies that this wire is designed for welding in the flat (1G) and horizontal (2F) welding positions.
4）Shielding Mechanism (-3): The "-3" indicates that this is a "gasless" or "self-shielded" wire, meaning it does not require external shielding gas. The flux within the wire produces the necessary shielding gases and slag to protect the weld pool.
5）Performance Characteristics: It is known for excellent arc stability, low spatter generation, good bead shape and appearance, and easy slag removal, contributing to high productivity and reduced post-weld cleaning.
6）Applications: This wire is widely used for single or multi-pass welding of stainless steels such as 304, 304L, 308, 308L, 321, and 347, particularly in applications like chemical processing equipment, pressure vessels, food-grade equipment, and general stainless steel fabrication.
AWS A 5.22 E308LT0-3 Gasless Stainless Steel Flux Cored Wire Welding.pdf
Standard： AWS A5.22 E308LT0-3 | Chemical Composition % | |||||||||||||
C | Mn | Si | Ni | Cr | Mo | Cu | S | P | ||||||
Grade E308LT0-3 | ≤ 0.04 | 0.5 ~ 2.5 | ≤ 1.0 | 9.9 ~ 11.0 | 18.0 ~ 21.0 | ≤0.50 | ≤0.03 | ≤ 0.04 | ||||||
Type | Spool (MIG) | |||||||||||||
Specification ( MM ) | 0.8、0.9、1.0、1.2、1.6 | Pack | S100/1kg S200/5kg S270,S300/12.5kg-20kg | |||||||||||
Mechanical Properties | Rm / MPa | A (%) | ||||||||||||
≥ 520 | ≥ 35 | |||||||||||||
MIG Welding | （MM） | 1.2 | 1.6 | |||||||||||
Current - A | 120 ~ 250 | 160 ~ 300 | ||||||||||||
AWS A 5.22 E308LT0-3 Gasless Stainless Steel Flux Cored Welding Wire Parameters
| Diameter | Process | ||
| in | mm | ||
| 0.023 | 0.6 | FCAW | |
| 0.03 | 0.8 | FCAW | |
| 0.035 | 0.9 | FCAW | |
| 0.039 | 1.0 | FCAW | |
| 1/25.4” | |||
| 0.045 | 1.2 | FCAW | |
| 3/64” | |||
| 1/16” | 1.6 | FCAW | |
| Weight | 0.5kg | 1kg | 2kg | 5kg | 12.5kg | 15kg | |||||
| 1 lb | 2 lb | 4 lb | 11 lb | 25 lb | 33 lb | ||||||
AWS A5.22 E308LT0-3 is a **self-shielded, flux-cored welding wire** specifically designed for welding **stainless steel**. The classification indicates it meets American Welding Society standards for **stainless steel electrodes**, featuring a low carbon content for corrosion resistance and suitability for specific welding positions without external shielding gas.
The "E" denotes an electrode.
"308L" refers to the weld metal's chemical composition, primarily for **308L stainless steel**, with "L" indicating low carbon to minimize sensitization and improve **corrosion resistance**.
"T0" specifies the welding positions suitable for this wire, which are **flat and horizontal positions**.
The "-3" signifies that it is a **self-shielded or gasless flux-cored wire**, meaning it generates its own protective gas shield from the flux ingredients, eliminating the need for an external shielding gas supply.
The main advantage of **gasless flux-cored wire** is its **portability and convenience**.
It eliminates the need for bulky gas cylinders, regulators, and hoses, making it ideal for **outdoor welding**, **field repairs**, and jobs where gas supply is impractical.
This type of wire also offers excellent **wind resistance**, ensuring a stable arc and good weld quality even in breezy conditions, which is crucial for **construction and outdoor fabrication**.
This welding wire is primarily designed for welding **308L stainless steel**.
However, it is also highly effective for joining other common austenitic stainless steels such as **304, 304L, 321, and 347 stainless steel**.
Its low carbon content makes it suitable for applications where **intergranular corrosion resistance** is critical, such as in **food processing equipment** and **chemical tanks**.
AWS A5.22 E308LT0-3 is widely used in various industries including **food and beverage processing**, **chemical and petrochemical**, **pharmaceuticals**, and **general fabrication**.
Common applications include welding **storage tanks, pipelines, pressure vessels, exhaust systems, and general stainless steel structures** where good **weld integrity** and **corrosion resistance** are paramount.
Yes, **E308LT0-3 flux-cored wires** are engineered for excellent **arc stability**.
This leads to a smoother welding process, reduced spatter, and ultimately, a more consistent and higher quality weld bead.
Good arc stability is essential for both novice and experienced welders to achieve optimal results in **stainless steel welding**.
The "L" in E308LT0-3 indicates a **low carbon content**.
This is crucial for preventing **carbide precipitation** in the heat-affected zone (HAZ) during welding, which can lead to a phenomenon known as sensitization.
By minimizing sensitization, the weld metal maintains its inherent **corrosion resistance**, particularly against **intergranular corrosion**, ensuring the longevity and integrity of the welded joint in corrosive environments.
No, one of the key benefits is that it can be used with standard **MIG welding machines** that have a **DC+ (DCEP) polarity** setting, common for **flux-cored welding**.
You don't need a separate gas cylinder or associated gas equipment, simplifying your setup and making it more convenient for **mobile welding operations**.
Ensure your machine can handle the specific wire diameter you choose.
This wire typically produces a **manageable and easily removable slag**.
The slag system is designed to provide good bead shape and protection for the cooling weld metal.
After welding, the slag can usually be chipped off with a chipping hammer or wire brushed, minimizing post-weld cleaning time and effort, which contributes to higher **welding productivity**.
Yes, E308LT0-3 is suitable for both **single-pass and multi-pass welding** applications.
Its design ensures good mechanical properties and **corrosion resistance** across multiple layers.
When performing multi-pass welds, proper interpass cleaning and temperature control are still recommended to maintain optimal weld quality and prevent heat accumulation in the **base material**.
Common wire diameters for AWS A5.22 E308LT0-3 typically include **0.035 inch (0.9 mm), 0.045 inch (1.2 mm), and 1/16 inch (1.6 mm)**.
The choice of wire diameter depends on the material thickness, welding position, and the desired deposition rate.
Thicker wires are generally used for heavier sections and higher deposition, while thinner wires are preferred for thinner materials and finer control.
While **solid stainless steel wires (GMAW)** with shielding gas often offer a cleaner arc and minimal spatter, **gasless flux-cored wires** like E308LT0-3 provide superior penetration and are much more forgiving in less-than-ideal environments, especially outdoors.
The main trade-off is often a slightly higher spatter level and a more robust slag system compared to gas-shielded processes.
However, for **field applications** and **portability**, flux-cored offers significant advantages in **stainless steel fabrication**.
Preheating requirements largely depend on the **thickness of the stainless steel** being welded and the specific application.
For thin sections of **304L stainless steel**, preheating is often not necessary.
However, for thicker sections or in situations where high restraint is present, a mild preheat may be recommended to reduce thermal stresses and prevent cracking, ensuring optimal **weld integrity**.
For AWS A5.22 E308LT0-3 **flux-cored wire**, **DC Electrode Positive (DCEP)**, also known as **reverse polarity**, is the standard and recommended setting.
This polarity provides deeper penetration and a more stable arc for **self-shielded flux-cored welding**, ensuring proper melting and fusion of the **stainless steel base metal**.
While primarily designed for 308L and similar grades, E308LT0-3 can sometimes be used for joining certain **dissimilar stainless steels** where one of the materials is within the 304L/308L family.
However, for critical applications involving significantly dissimilar stainless steels, it's always best to consult a **welding engineer** or refer to specialized **welding procedure specifications (WPS)** to ensure compatibility and performance, as the metallurgical properties might vary.
AWS A5.22 E308LT0-3 **flux-cored welding wire** is typically available in various spool sizes to accommodate different user needs.
Common packaging options include **2 lb (0.9 kg), 10 lb (4.5 kg), and 33 lb (15 kg) spools**.
Larger industrial users might also find it in bulk drums. Choosing the right spool size depends on the frequency and scale of your **stainless steel welding projects**.
To ensure the best performance and prevent moisture pick-up, **AWS A5.22 E308LT0-3 wire** should be stored in a **dry, cool environment** in its original, sealed packaging.
Exposure to humidity can degrade the flux components and lead to welding issues such as porosity.
Proper storage helps maintain the wire's integrity and ensures consistent **weld quality** for your **stainless steel applications**.
While AWS A5.22 is a primary standard, many manufacturers also produce E308LT0-3 wires that comply with other international standards, such as **ISO 17633** (for flux-cored arc welding of high strength steels and creep resisting steels) or **EN ISO 17633-A: T 23 12 L R C 3**.
Always check the manufacturer's data sheet for specific certifications and compliance with other relevant **welding standards** that might be required for your project.
Typical welding parameters for AWS A5.22 E308LT0-3 vary depending on wire diameter, material thickness, and joint configuration.
However, general starting points for voltage can range from **18-24V** and amperage from **90-200A**.
It's crucial to consult the manufacturer's specific recommendations for the exact wire diameter you are using, as these parameters can significantly impact **weld penetration, bead profile, and spatter levels**.
The "T0" designation in E308LT0-3 indicates suitability for **flat and horizontal positions only**.
It is generally not recommended for **overhead (4F) or vertical (3F) welding positions** due to the nature of the flux and slag system, which may not provide adequate support for the weld pool against gravity.
For all-position stainless steel flux-cored welding, a different classification (e.g., T-1 or T-4) would be required.
