What is ER2209?

ER2209 filler metal is designed to weld duplex stainless steels such as UNS Number N31803. The welds are characterized by high tensile strength and improved resistance to stress corrosion cracking and pitting. The wire is lower in ferrite compared to that of base metal in order to obtain improved weldability.

What does er70s6 mean or stand for?

Solid wire: An overview As an example, for a commonly used solid wire — AWS ER70S-6 — the “ER” indicates that the filler metal is an electrode or rod; the “70” signifies that it has a tensile strength of 70,000 pounds per square inch (psi); and the “S” means that it is a solid wire.

What is 309 welding rod used for?

In most cases when welding dissimilar metals or, more specifically, carbon to SS, we recommend you use a 309 filler metal because of its higher ferrite content. This higher ferrite content can minimize weld dilution and prevent weld cracking.

Can you use 308 to weld 304?

To weld Type 304 stainless, use Type 308 filler, as the additional alloying elements in Type 308 will better stabilize the weld area. However, 308L is also an acceptable filler. The “L” designation after any Type indicates low carbon content.

What is the difference between 70s2 and 70s6?

Type ER70S-2 is the most popular Tig rod for welding carbon and low alloy steels… It is a triple deoxidized steel welding wire used for both tig and mig welding applications. Type ER70S-6 is a very popular mig welding wire that can also be purchased in cut lengths and used for Tig welding.

What does er stand for in MIG wire?

ER – Designates electrode or filler rod. XX – Designates the minimum tensile strength of the deposited weld metal. S – Stands for solid wire.

Can you weld carbon steel with 309?

How to Tig Weld Steel using 309 stainless Tig Rod. Sometimes 309 stainless tig rod is a good choice when you need to Tig weld carbon steel. even though the rods were much more expensive than plain old er70s2, the welder liked them better and could weld hot rolled steel easier without getting porosity.

Is 304 or 316 easier to weld?

When it comes to machinability, grade 304 is much easier to machine than 316 grade stainless steel. Since it is less expensive and easier to fabricate, stainless steel 304 alloy is the most widely used austenitic stainless steel in the world.

What happens if you weld 316 with 308?

So you could weld 304 Stainless Steel with a 308 or 316 Rod/Wire, but you shouldn’t weld 316 with a 308 Rod/Wire. A lot of Mig and Tig Wire may be 308LSi & 316LSi, this denotes Low Carbon and added Silicon. Adding Silicon will make the molten weld metal slightly more fluid and so flow better.

What is alloy ER 2209 used for?

Alloy ER 2209 is designed to weld duplex stainless steels such as 2205 (UNS Number N31803). High tensile strength and improved resistance to stress corrosion cracking and pitting characterize the welds of this wire. This wire is lower in ferrite compared to that of base metal in order to obtain improved weldability.

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