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AWS A 5.22 E308LT1-1
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）AWS A5.22 E308LT1-1 is a classification for a gas-shielded, flux-cored arc welding (FCAW-G) wire designed specifically for welding stainless steels.
2）The "E" designates it as an electrode, "308L" signifies its low-carbon austenitic stainless steel composition (similar to 308L base metal), and "T" denotes that it is a tubular (flux-cored) wire.
3）The first "1" after "T" indicates its all-position usability, allowing for welding in flat, horizontal, vertical-up, and overhead positions, which is highly beneficial for complex fabrications.
4）The final "-1" specifies the required shielding gas type, which for this particular classification is 100% Carbon Dioxide (CO2).
5）This welding consumable is formulated to provide excellent weldability with a stable arc, low spatter, and an easily removable slag, resulting in a smooth bead appearance and good radiographic quality welds.
6）E308LT1-1 is widely used for welding austenitic stainless steels such as 304L, 308L, 321, and 347, especially in industries like chemical processing, food and beverage, pulp and paper, and pressure vessel manufacturing, where resistance to intergranular corrosion and a strong, ductile weld are critical.
AWS A 5.22 E308LT1-1 Stainless Steel Flux Cored Wire Welding.pdf
Standard： AWS A5.22 E308LT1-1 | Chemical Composition % | |||||||||||||
C | Mn | Si | Ni | Cr | Mo | Cu | S | P | ||||||
Grade E308LT1-1 | ≤ 0.04 | 0.5 ~ 2.5 | ≤ 1.0 | 9.0 ~ 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 E308LT1-1 Stainless Steel Flux Cored Welding Wire Parameters
| Diameter | Process | ||
| in | mm | ||
| 0.023 | 0.6 | GMAW，SMAW，FCAW | |
| 0.03 | 0.8 | GMAW，SMAW，FCAW | |
| 0.035 | 0.9 | GMAW，SMAW，FCAW | |
| 0.039 | 1.0 | GMAW，SMAW，FCAW | |
| 1/25.4” | |||
| 0.045 | 1.2 | GMAW，SMAW，FCAW | |
| 3/64” | |||
| 1/16” | 1.6 | GMAW，SMAW，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 E308LT1-1 is a classification for a **gas-shielded, flux-cored arc welding (FCAW-G)** wire designed for **stainless steel welding**. It's specifically formulated to deposit a low-carbon 308L type stainless steel weld metal, providing excellent **corrosion resistance** and mechanical properties. This **welding consumable** is widely used in industries requiring high-quality **stainless steel fabrication**.
The "308L" in the classification indicates that the weld metal deposited by this wire has a low-carbon austenitic stainless steel composition, similar to 308L stainless steel. The "L" stands for low carbon, which is crucial for minimizing **carbide precipitation** and ensuring superior resistance to **intergranular corrosion**, especially after prolonged exposure to elevated temperatures or in corrosive environments. This is vital for maintaining **weld integrity**.
For AWS A5.22 E308LT1-1, the specified shielding gas is **100% Carbon Dioxide (CO2)**. While other stainless steel flux-cored wires might use argon/CO2 mixtures, this particular classification is optimized for pure CO2, which contributes to a deeper penetration and a stable arc. Using the correct **shielding gas** is paramount for achieving optimal **weld quality** and performance.
E308LT1-1 is widely used in industries such as chemical processing, food and beverage, pharmaceutical, and pulp and paper. It's ideal for welding stainless steel pipes, tanks, and vessels where both high strength and excellent **corrosion resistance** are critical. Its all-position capability makes it versatile for complex **structural fabrication**.
E308LT1-1 is designed for welding various austenitic stainless steels, including **304L, 308L, 321, and 347**. Its low carbon content makes it suitable for welding 304L to prevent sensitization. It ensures the deposited weld metal has similar or superior properties to the **base metals**, maintaining the integrity of the entire **stainless steel structure**.
Advantages include its all-position welding capability, high deposition rates (compared to solid wires), excellent penetration, and robust mechanical properties. It offers a stable arc, minimal spatter, and an easily removable slag, reducing post-weld cleanup. These features contribute to increased **welding productivity** and high-quality **stainless steel welds** in challenging environments.
Yes, the "1" after "T" in the E308LT1-1 classification specifically denotes its **all-position welding capability**. This means it can be effectively used for welding in flat, horizontal, vertical-up, and overhead positions, providing significant versatility for complex **fabrication scenarios** and reducing the need for repositioning workpieces.
Welds made with E308LT1-1 typically exhibit excellent mechanical properties, including high tensile strength (around 80,000-95,000 psi or 550-650 MPa), good yield strength (around 55,000-70,000 psi or 380-480 MPa), and impressive elongation (around 35-45%). It also offers good impact toughness, ensuring durable and reliable **welded joints** in demanding applications.
The "L" (low carbon) designation in E308LT1-1 is crucial for preventing **intergranular corrosion**. By keeping the carbon content below 0.04% (typically 0.03% max), it minimizes the formation of chromium carbides at grain boundaries during welding or service, which could otherwise deplete chromium and make the material susceptible to corrosion. This ensures long-term **corrosion resistance** of the **weldment**.
E308LT1-1 stainless steel flux-cored wire is commonly available in various diameters, including 0.045" (1.1mm), 0.052" (1.3mm), and 1/16" (1.6mm). The selection of **wire diameter** depends on the material thickness, welding position, and desired deposition rate, influencing the overall **welding efficiency** and quality of the **weld bead**.
E308LT1-1 produces a self-peeling or easily removable slag, which is characteristic of T1 type flux-cored wires. This makes post-weld cleanup significantly easier and faster compared to some other flux-cored wires, contributing to increased **welding productivity** and a cleaner final appearance of the **stainless steel weld**.
Generally, **preheating is not required** for most austenitic stainless steels when welding with E308LT1-1, especially for thinner sections. Excessive preheating can actually be detrimental, promoting sensitization. For very thick sections or highly constrained joints, maintaining a low interpass temperature (below 150°C / 300°F) is more important than preheating to control distortion and prevent carbide precipitation. This is crucial for **stainless steel welding procedures**.
The flux core in E308LT1-1 provides several benefits: it generates a protective gas shield, adds deoxidizers and alloying elements to the weld metal, stabilizes the arc, shapes the bead, and produces a manageable slag. These combined effects contribute to its excellent **weldability**, high deposition rates, and superior **weld quality** compared to solid wires in certain applications.
While primarily designed for conventional spray or globular transfer with CO2, some E308LT1-1 wires can perform well with pulse welding settings. Pulse welding can offer advantages such as better control over heat input, reduced spatter, and improved out-of-position welding. Always consult the manufacturer's recommendations for optimal **welding parameters** when considering **pulse FCAW**.
Common issues include porosity (due to inadequate shielding gas flow or contamination), lack of fusion (incorrect parameters), and excessive spatter (improper voltage or wire feed speed). Controlling **heat input** is vital to prevent distortion and sensitization. Adhering to manufacturer-recommended **welding procedures** and proper **joint preparation** are key to minimizing these issues and achieving **defect-free welds**.
Detailed specifications, including exact chemical composition, mechanical properties, recommended welding parameters, and relevant certifications (e.g., from ABS, DNV GL, Lloyd's Register), are available on the manufacturer's technical data sheets (TDS) or product brochures. These documents are essential for ensuring compliance with **project requirements** and **industry standards** for **stainless steel welding**.
Proper **joint preparation** is extremely important for E308LT1-1 welding. The weld area must be clean and free from oil, grease, paint, rust, and other contaminants to prevent porosity and ensure proper fusion. Using dedicated stainless steel brushes and grinding wheels is recommended to avoid cross-contamination from carbon steel. This diligence is crucial for maintaining **weld integrity** and **corrosion resistance**.
Yes, welds made with E308LT1-1 typically exhibit excellent ductility, which is a desirable property for many stainless steel applications. The austenitic microstructure of the weld metal contributes to its good elongation and toughness, allowing it to withstand forming operations and resist cracking under stress. This high **ductility** ensures the reliability of the **welded structure**.
E308LT1-1 can be used for welding certain **dissimilar stainless steels**, particularly when one of the materials is a 304L or 308L type. For example, it can often be used to join 304L to 321 or 347 stainless steels. However, for more complex dissimilar joints, specific filler metals designed for broader compatibility (e.g., ER309L) might be more appropriate. Always consult a **welding engineer** for complex **dissimilar metal welding** scenarios.
To control distortion when welding with E308LT1-1, especially on thin or complex stainless steel parts, several measures can be taken. These include using proper fixturing and clamping, minimizing heat input by optimizing travel speed and parameters, employing intermittent welding or skip welding techniques, and allowing for adequate cooling between passes. Controlling **heat input** is paramount for preventing **weld distortion** in **stainless steel fabrication**.
