STAVINOX 321

Key Features and Benefits of ER 321 Filler Wire

We engineered ER321 Filler Wire for industrial stainless steel welding where consistent performance is critical.

Its main features and benefits are:

• Titanium stabilised weld metal Titanium stabilisation prevents carbide precipitation, which improves resistance to intergranular corrosion after welding.
• High weld quality Smooth weld beads with good fusion and minimal defects support consistent joint strength.
• Excellent corrosion resistance Fits applications in corrosive environments, including chemical processing and food-related industries.
• Strong mechanical properties Good yield strength, tensile strength and elongation produce durable, long-lasting weld joints.
• Stable arc performance Precision layer wound wire feeds smoothly and keeps the arc stable during welding.
• Shielding gas flexibility Made for mixed shielding gases such as argon with oxygen or argon with carbon dioxide, which gives room to adapt the process.
• Wide industrial acceptance A common choice in engineering work where stainless steel structures need dependable welds.

These strengths make SS 321 welding filler a fit for demanding fabrication and production settings.

Specifications of ER 321 Filler Wire

The table below lists the main mechanical properties and welding conditions for ER321 Filler Wire.

These specifications support dependable performance across a broad range of stainless steel welding applications.

Properties of ER321 Filler Wire

ER321 Filler Wire is built for steady welding performance and joint reliability over the long term.

These properties support consistent results in both fabrication and repair work.

Applications of ER321 Filler Wire

SS 321 Welding Filler is commonly applied in industries where stainless steel components face heat and corrosive conditions.

Typical applications include:

• Fabrication of petrochemical equipment
• Food processing machinery
• Components for the energy and power sector
• Heat exchangers and pressure vessels
• Welding of stainless steel pipes and plates
• General engineering and industrial fabrication

Because it resists intergranular corrosion, it suits welded structures that operate at elevated temperatures.

Related Products

For a comprehensive stainless steel welding package, these Stanvac International products are often used with ER321 Filler Wire:

• Stainless Steel Stick Electrodes (ER-2594, ER-304L, ER-307, ER-307Si)
• Stainless Steel TIG Filler Rods – Give precise control and smooth weld finishes in critical applications.
• Duplex Stainless Steel Filler Wires – A good match where superior strength and corrosion resistance are needed.
• Welding Auxiliaries and Industrial Sprays – Help maintain weld quality and protect surfaces.
• Abrasives for Weld Cleaning and Finishing – Deliver clean, professional results with little post-weld preparation.

Together, these related products improve efficiency, help ensure high-quality welds and give a complete solution for stainless steel fabrication.