321 Stainless Steel Tube – Titanium Stabilized High Temperature Grade
Product Overview
321 stainless steel tube is a titanium-stabilized austenitic grade specially designed for high-temperature service. By adding titanium to bind carbon and prevent chromium carbide precipitation, it maintains excellent corrosion resistance and mechanical strength even after prolonged exposure to elevated temperatures and welding thermal cycles. This seamless and welded tube grade is the standard material for heat exchangers, boiler tubes and high-temperature industrial equipment.
Why Choose CNB 321 Stainless Tube?
Our 321 stainless tubes are produced by specialized high-temperature tube mills with strict control of titanium content and thermal processing to ensure full stabilization. Every tube undergoes high-temperature performance verification and nondestructive testing to ensure reliability in critical heat-exchange applications. We supply both seamless and welded constructions in a full range of sizes to match different pressure and temperature requirements.
Key Specifications
Core Advantages
- High-temperature stability: Titanium stabilization prevents intergranular corrosion at elevated temperatures.
- Excellent oxidation resistance: Maintains protective oxide layer up to 800°C continuous service.
- Good thermal fatigue: Resists thermal cycling stress in heat exchanger and boiler service.
- Good weldability: Weld zones retain full corrosion resistance without post-weld annealing.
- Proven performance: Standard material for industrial heat exchangers and boiler systems.
Applications
This 321 stainless steel tube is widely used for shell and tube heat exchangers, boiler tubes, industrial exhaust systems, furnace components, petrochemical equipment, thermal processing systems and high-temperature piping.
Get a Quotation
We supply 321 stainless steel in seamless and welded tube form, in various sizes and tempers for high-temperature applications. High-temperature test reports and material qualification documentation are available upon request. Contact our high-temperature materials team for a detailed quotation and technical support.
