Stainless Steel Elbow A403 WP321H For High Temperature Piping Systems

A403 WP321H Stainless Steel Elbow - High-Temperature Corrosion Resistant Pipe Fitting

Product Introduction

A403 WP321H Stainless Steel Elbows are ASME B16.9/B16.25 compliant butt-weld fittings engineered for extreme environments. The addition of Titanium (Ti) stabilizes the alloy against carbide precipitation, making it ideal for continuous high-temperature service (450°C–900°C) and corrosive media. These elbows are solution-annealed & quenched to maximize intergranular corrosion resistance in acidic, chloride-rich, and oxidizing conditions.

Key Advantages

 Superior Heat Resistance – Maintains structural integrity up to 900°C
 Stress Corrosion Cracking (SCC) Resistance – Critical for chemical/petrochemical applications
 ASTM A403 & ASME B16.9 Certified – Guaranteed dimensional/tolerance compliance
 Weld-Ready Design – Beveled ends ensure full-penetration weld integrity

Chemical Composition (ASTM A403 WP321H)

Technical Specifications

Applications

Engineered for Demanding Industrial Service

• Petrochemical: Crackers, reformers, FCC units (resists sulfidation)
• Chemical Processing: Acid reactors, nitric acid condensers
• Power Generation: Boiler superheaters, steam lines (>500°C)
• Pharmaceutical: USP/EP-compliant CIP/SIP systems
• Nuclear: Secondary cooling circuits (ASME III qualified)
• Pulp & Paper: Digester liquor handling