As a premier industrial supplier, we offer the certified Welding Electrode E2594 (AWS A5.4 E2594-16), commercially designated AF2594-16. This titanium calcium-coated, ultra-low carbon duplex stainless steel electrode incorporates strategic nitrogen content to deliver exceptional corrosion resistance. Its specialized chemistry produces weld metal with superior resistance to pitting, stress corrosion cracking (SCC), and thermal cracking – particularly vital for chloride-rich environments like chemical processing plants and marine infrastructure where standard stainless steels underperform.
The electrode’s efficacy stems from its controlled low-carbon composition (typically <0.03% C) combined with nitrogen and molybdenum enhancement. This achieves a Pitting Resistance Equivalent (PRE) range of 2-40 while maintaining a balanced austenite-ferrite microstructure. The metallurgical design prevents intergranular corrosion and preserves impact toughness across service temperatures from cryogenic conditions to 300°C (572°F), consistently exceeding AWS A5.4 mechanical requirements.
Operationally, this Welding Electrode E2594 features optimized titanium-calcium coating that ensures exceptional DC+ arc stability and slag removal in all positions, including vertical-down applications. The coating minimizes hydrogen absorption (<5ml/100g), eliminating cold-cracking risks in high-restraint joints. Welders report smooth metal transfer with minimal spatter and easy restrikes, enhancing productivity in critical applications like pressure vessel fabrication and pipeline welding.
Performance validation confirms weld metal chemistry averaging 25.5% Cr, 9.5% Ni, 3.8% Mo, and 0.22% N. Independent ASTM G48 Method A testing demonstrates pitting corrosion resistance exceeding conventional duplex grades by 40°C (104°F). The controlled 45/55 ferrite-austenite phase balance delivers yield strengths of 650-750 MPa (94-109 ksi) with 25%+ elongation – meeting ASME, EN, and NORSOK specifications for critical infrastructure.
For demanding corrosion applications, the Welding Electrode E2594 remains the industry benchmark. Its proven performance in desalination systems, offshore platforms, and chemical reactors ensures reliability. Supplied in 4kg vacuum-sealed packs with 36-month shelf life, all materials include batch-specific certifications. Contact our technical team for application-specific welding procedure specifications.
Post time: Aug-21-2025