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What are the main differences between ER 309, ER 309L, and ER 309LSi stainless steel sub-arc wires?
ER, 309, ER 309L, and ER 309LSi are Stainless Steel Sub-arc Wires, each with distinct characteristics suited for specific welding applications. The main differences lie in their chemical compositions and resulting weld properties. ER 309 contains higher levels of carbon and allows for excellent strength and temperature resistance, making it ideal for joining dissimilar alloys and high-temperature applications.
On the other hand, ER 309L has a lower carbon content, promoting increased corrosion resistance and improved weldability while maintaining good strength. This variant is particularly useful when welding low-carbon 309 or 300 series stainless steels.
ER, 309LSi contains silicon, further enhancing weld fluidity and reducing the risk of hot cracking. This wire is often preferred for welding stainless steels with higher silicon content and for applications requiring smoother, spatter-free welds. Proper selection among these sub-arc wires ensures optimal welding performance based on specific project requirements and material compatibility.
Table Of Content
About ER309 Stainless Steel Sub Arc Wires
ER-309L Stainless Steel Sub Arc Wire Specification
Stock Availability of SS ER309Lsi Sub ARC Wire
Equivalent Grades Of ER309 Stainless Steel Sub Arc Wire
Chemical Composition of SS ER 309 Sub Arc Wires
Mechanical Properties of SS ER309L Sub Arc Wire
Stainless Steel ER309Lsi Sub Arc Wires Ready Stock
ER309 Stainless Steel Sub Arc Wires Applications and Uses
Supply & Export Destinations of ER309L Stainless Steel Sub Arc Wire
How does the composition of ER 309L sub-arc wire differ from ER 309 and ER 309LSi, and how does it impact welding performance?
The composition of ER 309L Sub-arc Wire differs from ER 309 and ER 309LSi primarily in its carbon content and the addition of certain elements. ER, 309L contains lower carbon levels than ER 309, resulting in increased weldability and reduced susceptibility to intergranular corrosion. The "L" in ER 309L stands for "Low Carbon," which makes it particularly suitable for welding applications involving low-carbon versions of 309 and other 300 series stainless steels. On the other hand, ER 309LSi contains silicon in addition to the lower carbon content, further enhancing weld fluidity and providing a spatter-free welding experience.
The reduced carbon content and increased silicon in ER 309L and ER 309LSi wires improve performance in critical applications where preventing carbide precipitation and maintaining high-quality welds are essential. Properly choosing between these wires ensures welding success by considering the specific stainless steel grade, joint design, and desired mechanical properties of the welds.
| Classification | AWS A5.9-A5.9M |
|---|---|
| Sub Arc Wire Size | 1.60 mm – 5.00 mm |
| Packing | 25 kgs. or 60 lbs. layer wound coils with core or H 400 plastic spools or K 415 metal wire baskets |
| Type | Submerged ARC Welding Wire/Flux, Submerged Arc (Saw) Wires |
| Material / Grade | Stainless Steel / ER 309 |
| Diameters | 2.0mm-4.0mm |
| Wire Finish | Bright & Matt Finish |
| Thickness | 1.6 mm to 6 mm (1/16 in. to 1/4 in |
| Application & uses |
Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry |
| Class | UNS | Oxford Alloys |
| E309 | W30913 | Alloy 309 |
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
|---|---|---|---|---|---|---|---|---|
| 0.04 | 22.0-25.0 | 12.0-14.0 | 0.75 | 0.5-2.5 | 1.00 | 0.04 | 0.03 | 0.75 |
| Material | Ultimate Tensile Strength | Offset Yield Strength 0.2 % | Elongation (%) | ||
|---|---|---|---|---|---|
| psi | MPa | psi | MPa | ||
| ER 309/ ER 309L | 85,550 | 590 | 58,000 | 400 | 40 |
Stainless Steel Sub Arc Wires in General Fabrication
Stainless Steel Sub Arc Wires in Automotive Welding
Stainless Steel Sub Arc Wire in Robotic Welding
Stainless Steel Sub Arc Wire in Tack Welding
Stainless Steel Sub Arc Wire in Railroads
SS Sub Arc Wire in Construction And Infrastructure
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Your #1 Source for ER309 Stainless Steel Sub Arc Wire
Stainless Steel ER309 Sub ARC Wire Stock Availability
Submerged Arc Welding Wire
Wire Used In Submerged Arc Welding (SAW) Is One Type Of Welding Consumable. It is used to form the weld joint between two workpieces and is composed of a continuous wire that is either solid or flux-cored. An automatic or semi-automatic welding process known as SAW creates an arc between the wire and the workpiece while covering the welding zone with granular flux to shield it from atmospheric contamination.
AWS A5.14 Submerged Arc Welding Wire Supplier, Oxford Alloy 60 Submerged Arc Welding Wire, Grade 309L ER309L SAW Wires, ASME SFA A5.14 ERNiCu-7 SAW & Flux, 309l Flux Core Wire, 309L Stainless Steel SAW Wires, 309lsi Stainless Steel Saw Wires, SAW Wire Stockist.
Submerged Arc Welding Fluxes
Submerged Arc Welding (SAW) fluxes are an essential component of the SAW process. They are granular substances that are used in conjunction with a continuous welding wire to facilitate the welding process. When the welding wire is fed into the joint, the flux covers the welding zone, protecting the molten metal from atmospheric contamination. The flux also plays a vital role in determining the properties of the weld and the overall welding performance.
AWS Class ER309/309L SAW & Flux Welding Wire, Submerged Arc Welding Flux Suppliers, Submerged Arc Welding Consumables, Fluxes and Wires (SAW) For Stainless Steel, AWS Class ER309/309Lsi SAW & Flux Stockist.