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AWS Class ER2209 SAW & Flux Welding Wire – Composition, Properties, and Uses

AWS Class ER2209 SAW & Flux

Welding is an essential process that is used in numerous industries worldwide. Using the right welding materials is important to ensure the process is cost-effective, efficient, and produces quality output. One excellent welding material you may have heard of is AWS Class ER2209 SAW & Flux. If you are curious about these terms, read on for a detailed explanation of this welding material.

What is AWS Class ER2209 SAW & Flux?

AWS Class ER2209 SAW & Flux welding wire is used in submerged arc welding (SAW) processes. In certain percentages, it is composed of a mixture of metals, including chromium, nickel, and molybdenum. The typical composition of AWS Class ER2209 SAW & Flux is 22-24% chromium, 8-10% nickel, and 3-3.5% molybdenum. This combination of metals is known for producing high-strength welds and being very corrosion-resistant.

ER2209 SAW & Flux Welding Wire Composition

C Mn Si Cr Ni Mo S P Cu N
0.03

0.50-

0.90

21.5-

7.5- 2.5- 0.03 0.03 0.75 0.08-
max 2.0 max 23.5 9.5 3.5 max max max 0.20

ER2209 SAW & Flux Welding Wire Physical Properties

The physical properties of AWS Class ER2209 SAW & Flux welding alloy include a density of approximately 7.8 g/cm³, a melting range of 1340-1420°C, and a thermal conductivity of 14.2 W/m.K. These properties are important to consider as they affect the material’s handling and the welding process’s outcome.

ER2209 SAW & Flux Coated Wire Mechanical Properties

Regarding mechanical properties, AWS Class ER2209 SAW & Flux has a yield strength of 60 ksi, a tensile strength of 80 ksi, and an elongation of 25%. These properties indicate that the material is strong and ductile, making it an excellent choice for welding applications requiring high strength and toughness.

As required by AWS 5.9

Tensile Strength MPa (ksi)

Yield Strength MPa (ksi)

Elongation
%

AWS
Requirements

Not Specified

Typical Results – As welded

720 (104)

560 (81)

26

ER2209 SAW & Flux Welding Wire Trade Name

Class UNS Oxford Alloys BOHLER
ER2209 S39209 Alloy 2209 AVESTA FLUX 805

ER2209 SAW & Flux Coated Wire Parameters

Diameter

Process

Volt Amps

SAW Flux

in (mm)
3/32 2.4 SAW 28-30 275-350

Suitable Flux

1/8 3.2 SAW 29-32 350-450

Suitable Flux

ER2209 SAW & Flux Welding Wire Uses

AWS Class ER2209 SAW & Flux welding electrode is commonly used in the marine, oil and gas, and chemical industries, where high-strength and corrosion-resistant welds are essential. It is also suitable for welding duplex and super duplex stainless steel and other types of stainless steel.

ER2209 SAW & Flux Coated Wire Heat Treatment

Heat treatment is an important aspect to consider when using AWS Class ER2209 SAW & Flux filler wire to ensure maximum performance of the welded material. The material should be heated to 1020-1100°C, held for 30 minutes, and then rapidly cooled in water or oil to avoid any major distortion of the welded material.

ER2209 SAW & Flux Welding Wire Corrosion Resistance

Corrosion resistance is also important when using AWS Class ER2209 SAW & Flux filler metal . This material is known for its excellent resistance to pitting corrosion, which makes it ideal for use in harsh environments that have exposure to corrosive substances.

Conclusion:

In summary, AWS Class ER2209 SAW & Flux is a welding material of chromium, nickel, and molybdenum in specific percentages. This material is known for its high strength, flexibility, and corrosion resistance, making it an excellent choice for welding applications in various industries. Proper heat treatment and consideration of corrosion resistance can maximise the welded material’s performance. Next time you are looking for a welding material that can produce high-quality welds, AWS Class ER2209 SAW & Flux is worth considering.

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