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AWS A5.9 ER308L
1kg,5kg,15kg,20kg
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″
1.6mm,2.0mm,2.4mm,3.2mm,4.0mm,5.0mm
1/16 ″in;5/64″in;3/32″in;1/8″in;5/32″inch
D100,D200,D270,D300,BS300,K300
Acceptable (design the pack with your logo)
15 Days
Product Description
1）Classification: This is an American Welding Society (AWS) standard for bare stainless steel welding electrodes and rods, with the 'L' designating a low-carbon variant.
2）Composition: The "ER308L" designation indicates it is a low-carbon filler metal with a nominal composition of 18% chromium and 8% nickel, specifically designed to have a maximum carbon content of 0.03%.
3）Application: It is primarily used for welding unstabilized austenitic stainless steels, particularly Type 304L, where the low carbon content is critical for preventing weld decay.
4）Welding Processes: Like its ER308 counterpart, it is suitable for Gas Metal Arc Welding (GMAW/MIG), Gas Tungsten Arc Welding (GTAW/TIG), and submerged arc welding.
5）Properties: The low carbon content makes the weld metal highly resistant to intergranular corrosion, making it ideal for applications that will be exposed to corrosive environments or prolonged high temperatures.
6）Industries: It is widely used in the chemical and food processing industries for fabricating tanks, pipes, and vessels where corrosion resistance is a primary concern.
AWS A5.9 ER308L Stainless Steel Welding Wire.pdf
Standard： AWS A 5.9 YB/T5092 | Chemical Composition % | |||||||||||||
C | Mn | Si | Cr | Ni | P | S | Mo | Cu | ||||||
Grade ER308L | ≤0.03 | 1.0 – 2.5 | 0.3 – 0.65 | 19.5 – 22 | 9 – 11 | ≤0.03 | ≤0.03 | ≤0.75 | ≤0.75 | |||||
Type | Spool (MIG) | Tube (TIG) | ||||||||||||
Specification ( MM ) | 0.8、0.9、1.0、1.2、1.6、2.0 | 1.6、2.0、2.4、3.2、4.0、5.0 | ||||||||||||
Package | S100/1kg S200/5kg S270,S300/15kg-20kg | 5kg/box 10kg/box length :1000MM | ||||||||||||
Mechanical Properties | Tensile Strength Mpa | Elongation after fracture A（%） | ||||||||||||
≥ 520 | ≥ 35 | |||||||||||||
Diameter（MM） | 0.8 | 1.0 | 1.2 | 1.6 | 2.0 | 2.5 | 3.2 | |||||||
Current （A） | 70 ~ 150 | 100 ~ 200 | 140 ~ 220 | 50 ~ 100 | 100 ~ 200 | 200 ~ 300 | 300 ~ 400 | |||||||
AWS A5.9 ER308L Stainless Steel Welding Wire Parameters
| Diameter | Process | ||
| in | mm | ||
| 0.03 | 0.8 | GMAW | |
| 0.035 | 0.9 | GMAW | |
| 0.039 | 1.0 | GMAW | |
| 1/25.4” | |||
| 0.045 | 1.2 | GMAW | |
| 3/64” | |||
| 1/16” | 1.6 | GMAW | |
| 3/32” | 2.4 | GMAW | |
| Diameter | Process | ||
| in | mm | ||
| 1/16” | 1.6 | GTAW | |
| 3/32” | 2.4 | GTAW | |
| 1/8” | 3.2 | GTAW | |
| 5/32” | 4.0 | GTAW | |
| 3/16” | 4.8 | GTAW | |
| Weight | 0.5kg | 1kg | 2kg | 5kg | 15kg | 20kg | |||||
| 1 lb | 2 lb | 4 lb | 11 lb | 33 lb | 44 lb | ||||||
AWS A5.9 ER308L is a low-carbon bare stainless steel filler metal.
It is used primarily for welding austenitic stainless steels and is valued for its superior corrosion resistance, especially after welding.
The "L" stands for "Low Carbon."
This indicates that the filler metal has a maximum carbon content of 0.03%, which is crucial for preventing a phenomenon known as intergranular corrosion, also called weld decay.
This welding wire is the ideal choice for welding low-carbon grades of stainless steel like Type 304L.
It is also suitable for welding standard grades like 304, as well as stabilized stainless steels such as 321 and 347, without compromising their corrosion resistance.
During welding, heat can cause carbon to combine with chromium at the grain boundaries, forming chromium carbides.
This process, known as sensitization, depletes the chromium available for corrosion protection, leading to "weld decay" in the heat-affected zone.
The main difference is the carbon content.
ER308L has a maximum carbon content of 0.03%, while standard ER308 has a slightly higher carbon level.
The lower carbon in ER308L makes it significantly more resistant to intergranular corrosion.
ER308L is a versatile filler metal suitable for a variety of welding methods.
It is most commonly used for Gas Metal Arc Welding (GMAW/MIG) and Gas Tungsten Arc Welding (GTAW/TIG).
This wire is essential in industries where corrosion resistance is paramount.
Common applications include fabricating equipment for the chemical processing, food and beverage, pharmaceutical, and pulp and paper industries.
The weld metal typically has a tensile strength that meets or exceeds the base metal's requirements.
Typical tensile strength values are around 80,000 psi (550 MPa), providing a strong and durable joint.
Yes, its low carbon content makes it an excellent choice for applications that operate at elevated temperatures.
It maintains its corrosion resistance even when the weld is exposed to prolonged heat, which would normally lead to sensitization in standard grades.
For MIG welding, a mixture of argon with 1-2% oxygen or 1-2% carbon dioxide is generally recommended.
Pure argon can also be used, but the small addition of another gas can improve arc stability and weld bead appearance.
To prevent contamination and moisture absorption, the wire should be stored in a clean, dry location.
It is best to keep it in its original sealed packaging until you are ready to use it.
Preheating is typically not required for most stainless steel welding applications with ER308L.
However, for very thick sections or when welding in cold environments, a mild preheat might be considered.
Optimal amperage settings depend on the wire diameter, welding process, and base metal thickness.
Always refer to the manufacturer's data sheet for specific recommendations to ensure a high-quality weld.
While its primary purpose is welding stainless steel, ER308L can be used for some dissimilar metal welding.
It can join stainless steel to carbon steel, but it's important to understand the metallurgy and potential for cracking based on the application.
ER308L is the standard low-carbon stainless steel filler metal, while ER316L contains molybdenum.
The addition of molybdenum in ER316L provides superior resistance to pitting and crevice corrosion, making it better for environments with chlorides and acids.
The low-carbon composition prevents sensitization and ensures the weld joint maintains the same corrosion resistance as the base metal.
This is critical for sanitary applications in food and beverage processing where cleanliness and corrosion prevention are non-negotiable.
Yes, ER308L is an excellent choice for automated and orbital welding systems.
Its consistent chemistry and excellent feedability are crucial for achieving repeatable, high-quality welds in these precision applications.
Yes, it is available as solid wire on spools for MIG welding and in straight cut lengths for TIG welding.
This allows it to be used across a wide range of welding equipment and techniques.
Chromium provides the primary corrosion resistance, while nickel contributes to toughness, ductility, and stability.
The combination of these elements forms a stable austenitic microstructure that resists corrosion.
ER347 is a stabilized variant of the 308-type alloy.
It contains niobium, which ties up carbon to prevent chromium carbide precipitation, offering an alternative for high-temperature welding applications.
