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AWS A5.9 ER308
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.
2）Composition: The "ER308" designation indicates it is an electrode or filler rod for welding with a nominal composition of 18% chromium and 8% nickel.
3）Application: It is commonly used for welding unstabilized austenitic stainless steels, such as types 301, 302, 304, 305, and 308.
4）Welding Processes: It is suitable for multiple welding processes, including Gas Metal Arc Welding (GMAW/MIG), Gas Tungsten Arc Welding (GTAW/TIG), and submerged arc welding.
5）Properties: The weld metal offers good mechanical properties and moderate resistance to corrosion, making it a popular choice for general-purpose applications.
6）Industries: It is widely used in industries like food and beverage, petrochemical, and for fabricating pressure vessels and chemical tanks.
AWS A5.9 ER308 Stainless Steel Welding Wire.pdf
Standard： AWS A 5.9 YB/T5092 | Chemical Composition % | |||||||||||||
C | Mn | Si | Cr | Ni | P | S | Mo | Cu | ||||||
Grade ER308 | ≤0.08 | 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（%） | ||||||||||||
≥ 550 | ≥ 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 ER308 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 ER308 is a classification for a bare stainless steel filler metal used in various welding processes.
It is specifically designed for welding unstabilized austenitic stainless steels, such as Types 304 and 308, which are widely used in industrial applications.
The "ER" stands for "Electrode or Rod," indicating its versatility as a filler metal for both electric arc and gas welding.
The "308" refers to the specific chemical composition, primarily consisting of 18% chromium and 8% nickel, which provides excellent corrosion resistance and mechanical strength.
ER308 is highly versatile and compatible with several welding methods.
It is most commonly used for Gas Metal Arc Welding (GMAW), also known as MIG welding, and Gas Tungsten Arc Welding (GTAW), or TIG welding.
This welding wire is the ideal choice for joining stainless steel grades like 301, 302, 304, 305, and 308.
It is also suitable for welding some other stainless steel types that require a filler metal with similar composition.
The primary benefits include excellent corrosion resistance, particularly against intergranular corrosion.
The resulting weld deposit also offers superior mechanical properties, making it a reliable choice for high-stress applications.
Intergranular corrosion is a form of localized attack on the grain boundaries of a metal.
ER308 contains a low carbon content (though not as low as ER308L), which helps minimize the formation of chromium carbides, the main cause of this type of corrosion.
While its primary use is for welding similar stainless steel grades, ER308 can be used for some dissimilar metal applications.
For example, it is sometimes used to join stainless steel to carbon steel, although careful consideration of the application and service conditions is necessary.
The key difference is the carbon content.
ER308L has a significantly lower carbon content (L stands for Low carbon), making it even more resistant to intergranular corrosion, especially in applications where the welded part will be exposed to high temperatures for extended periods.
Yes, it is available in a wide range of diameters to suit various welding procedures and material thicknesses.
Common sizes include 0.035", 0.045", and 1/16", among others.
This welding wire is a staple in many industries.
It is heavily used in the food and beverage industry for sanitary equipment, in petrochemical plants for pipes and vessels, and for general fabrication of chemical tanks and other corrosion-resistant components.
For Gas Metal Arc Welding (MIG), a shielding gas mixture of argon with a small percentage of carbon dioxide or oxygen is typically used.
This combination provides a stable arc and good weld bead appearance.
For Gas Tungsten Arc Welding (TIG), pure argon is the most common and effective shielding gas.
Helium or an argon/helium mix can also be used for specific applications to increase heat input.
Preheating is generally not required for welding austenitic stainless steels with ER308.
However, for very thick sections or in cold conditions, a mild preheat might be beneficial to prevent cracking.
Amperage settings vary significantly depending on the wire diameter, welding process (MIG vs. TIG), and the thickness of the base metal.
It's always best to follow the manufacturer's recommendations for your specific wire and application.
To prevent contamination and maintain its integrity, the welding wire should be stored in a clean, dry environment.
Spools should be kept in their original packaging until ready for use to protect them from moisture and dirt.
Its excellent corrosion resistance and ability to produce clean, smooth welds make it ideal for fabricating equipment that must meet strict hygiene standards.
It is used for tanks, pipes, and other components that come into contact with food products.
The tensile strength of the weld deposit can vary, but it generally exceeds the minimum requirements of the base metal.
Typical values are around 85,000 psi (586 MPa), providing a strong and durable joint.
Yes, ER308 is commonly used in automated and orbital welding systems.
Its consistent chemical composition and wire feed characteristics make it highly suitable for these high-precision applications.
High-quality wire ensures consistent feeding, a stable arc, and a uniform chemical composition.
This leads to better weld quality, reduced spatter, and fewer defects, which is crucial for critical applications.
While ER308 performs well, for applications involving very high temperatures and prolonged exposure to corrosive environments, other grades like ER309 or ER347 might be more suitable.
ER347, for example, contains niobium, which provides enhanced resistance to carbide precipitation at elevated temperatures.
