STAVINOX 309 / 309H

Main Features and Benefits

309 / 309H welding wire is developed for high temperature and heavy-duty industrial applications.

• Designed For High Temperature Service Controlled carbon content helps deliver higher tensile and creep strength at elevated operating temperatures.
• Suitable For High Chromium Stainless Steels Well suited to welding 24 percent chromium and 12 percent nickel stainless steels such as AISI 309H.
• Reliable For Dissimilar Metal Welding Can join stainless steel to carbon steel or low alloy steel in construction and fabrication work.
• High Deposition Efficiency Allows faster welding with consistent metal transfer, which raises productivity in joint welding.
• Stable Arc Performance Precision layer wound wire feeds smoothly and keeps the arc stable during welding.
• Strong Mechanical Properties The weld metal offers good strength, ductility and impact resistance.

With these features, 309H welding wire is a good fit for demanding fabrication environments.

Specifications

The following table lists the key mechanical properties and welding conditions of 309 / 309H welding wire.

Properties of 309 / 309H

STAVINOX 309 / 309H welding consumables are austenitic stainless steel electrodes and filler wires for high-performance welding, especially where dissimilar metals or high-temperature service are involved. They are widely used in chemical, petrochemical, power generation and industrial fabrication settings.

• Austenitic Stainless Steel Weld Metal: Gives stable, ductile welds with excellent toughness, suited to fabricating and repairing stainless steel and carbon steel components
• High-Temperature Performance: 309H has a higher carbon content to hold its strength at elevated service temperatures without giving up corrosion resistance.
• Corrosion Resistance: Good resistance to general corrosion, pitting and oxidation in mildly aggressive environments.
• Crack Resistance: Controlled ferrite content keeps susceptibility to hot cracking low during welding, which makes it ideal for dissimilar metal joints and overlay applications.
• Mechanical Strength: High tensile and yield strength together with ductility and toughness let welded joints withstand stress, vibration and thermal expansion.
• Smooth and Uniform Weld Beads: Clean, consistent welds with excellent wetting and minimal spatter reduce post-weld finishing.
• Stable Arc Performance: Dependable in MIG, TIG and stick processes, giving consistent penetration and metal transfer.
• Versatile Applications: A good match for overlay welding, joining stainless to carbon steels, industrial fabrication, chemical processing equipment and maintenance welding.

With these properties, STAVINOX 309 / 309H consumables are a dependable choice for durable, high-quality and reliable stainless steel welds.

Related Products

Stanvac International also supplies complementary stainless steel welding consumables to support 316 / 316H applications:

• 309Si and 309LSi Welding Wires: Well suited to joining dissimilar metals and buffer layers, giving strong, crack-resistant welds
• 310 Stainless Steel Welding Consumables: Made for high-temperature service, with excellent oxidation and thermal resistance
• 316 and 316L Stainless Steel Welding Wires: Superior corrosion resistance for chemical, marine and industrial applications
• 347 and 347H Stainless Steel Welding Wires: Niobium-stabilized wires that resist intergranular corrosion well and perform reliably at elevated temperatures

Together these consumables provide durable, high-quality and versatile welding solutions for fabrication, repair and maintenance in demanding industrial environments.