Stainless Steel 321H Tubes Features

• » High-Carbon Creep Strength: Controlled carbon content (0.04%–0.10%) provides superior creep and stress-rupture properties compared to standard 321 at temperatures above 500°C.
• » Titanium Stabilization: Effectively prevents intergranular corrosion in the heat-affected zone (HAZ) of welds, eliminating the need for post-weld heat treatment in high-temp service.
• » Exceptional Thermal Stability: Maintains structural integrity and mechanical strength during prolonged exposure to the 427°C–816°C sensitization range common in Saudi refineries.
• » Oxidation Resistance: High Chromium and Nickel levels ensure a stable protective surface layer, resisting scaling in furnace environments and exhaust gas systems.
• » Heavy-Wall Performance: Engineered for high-pressure boiler and superheater applications (Sch 80S to XXS), ensuring safety in steam generation lines.
• » ASME Boiler Code Compliance: Fully meets SA213 and SA312 requirements, making it the benchmark for SEC (Saudi Electricity Company) and Aramco thermal projects.
• » Impact Toughness: Despite its high-carbon nature, 321H retains excellent toughness at both high and cryogenic temperatures, offering operational versatility.
• » Reliable MRO Support: Locally stocked for rapid delivery to Jubail and Yanbu to minimize downtime during critical refinery turnarounds and plant maintenance.