Here's a professional English introduction for TP321H stainless steel with application fields:

‌TP321H Stainless Steel‌ is a titanium-stabilized austenitic stainless steel designed for high-temperature service2. This alloy combines excellent corrosion resistance with enhanced creep strength at elevated temperatures up to 816°C.

‌Key Characteristics:‌

• Superior resistance to intergranular corrosion due to titanium stabilization (Ti≥5xC content)
• High-temperature strength: tensile strength ≥520 MPa, yield strength ≥205 MPa
• Excellent oxidation resistance in continuous service up to 816°C
• Good weldability and formability comparable to standard 304 stainless steel
• Maintains corrosion resistance in sulfuric, phosphoric and nitric acid environments

‌Primary Applications:‌
• Power Generation: Superheater tubes, boiler components in thermal plants
• Petrochemical: Cracking furnace tubes, reformer components
• Chemical Processing: Reactors and piping for corrosive media

• Food Industry: High-temperature processing equipment
• Aerospace: Exhaust systems and heat exchangers

The material complies with ASME SA-213/SA213M standards and is commonly supplied as seamless tubes/pipes. Its titanium stabilization makes TP321H particularly suitable for applications requiring prolonged exposure to high temperatures.