Classification and Selection Guide for Stainless Steel Welding Wire
Release time:
2026-06-29
Comprehensive guide to classification and selection principles for stainless steel welding wire.
Stainless steel welding wire is primarily classified into the following categories based on chemical composition and application:
1. Austenitic Stainless Steel Wire (308, 309, 316 series): Most widely used, offering excellent corrosion resistance and weldability for most stainless steel structures.
2. Martensitic Stainless Steel Wire (410, 420 series): High hardness and wear resistance, suitable for valves, pump shafts and other components requiring high hardness.
3. Ferritic Stainless Steel Wire (430 series): Excellent resistance to chloride stress corrosion, suitable for chemical equipment.
4. Duplex Stainless Steel Wire (2209 series): Combining advantages of austenite and ferrite, featuring high strength and corrosion resistance for marine and chemical applications.
Selection Principles: Choose based on base metal composition, working medium, temperature/pressure conditions, and welding position to ensure weld properties meet service requirements.
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