ASTM A213 Grade T22 alloy steel tube is a high-performance chromium-molybdenum (2.25Cr–1Mo) steel tube designed for high-temperature and high-pressure service. It is widely used in power generation, petrochemical, and industrial boilers, where durability, creep resistance, and oxidation resistance are critical.
T22 offers a perfect balance of strength, thermal stability, and long-term service performance, making it suitable for superheaters, heat exchangers, and high-temperature piping systems. The Hebei K-Steel Pipe Industry seamless manufacturing process ensures a uniform microstructure, high integrity, and reliable mechanical properties.
Key Features:
1) Excellent high-temperature strength and creep resistance
2) Good resistance to high-temperature oxidation and hydrogen attack
3) Reliable performance under cyclic thermal loading
4) Good weldability with proper preheating and post-weld heat treatment (PWHT)
ASTM A213 Gr. T22 Chemical Composition & Mechanical Property:
Chemical Composition |
Chemical Composition, % | T11 | T22 |
C | 0.05-0.15 | 0.05-0.15 |
Mn | 0.30-0.60 | 0.30-0.60 |
P, max | 0.025 | 0.025 |
S, max | 0.025 | 0.025 |
Si | 0.50-1.00 | 0.50 max |
Cr | 1.00-1.50 | 1.90-2.60 |
Mo | 0.44-0.65 | 0.87-1.13 |
Tensile Requirements | T11 | T22 |
Yield Strength (min)
MPa (psi) | 205 (29,700) | 205 (29,700) |
Tensile Strength (min)
MPa (psi) | 415 (60,000) | 415 (60,000) |
General information:
Standard: ASTM A213
Grade: T22
Size: OD: 21.3-168.3mm; WT: 1-25mm or Schedule 10, 40, STD, XS, to 160; L: SRL / DRL / Cut to length
Ends:
1) Plain ends
2) Beveled ends
3) Threaded ends
Available Coating: Bared, black painted (mill varnish), oiled, anti-corrosion coating.
Package: Hexagonal bundled with steel strips for small or medium sizes, loose packing for large diameter pipes, plastic caps on both ends, waterproof material wrapped, wooden cases or crates for small sizes or special requirements.
Shipment: Land transportation by truck or train, sea transportation by container shipment or bulk vessel.
Our advantage:
Flexible Project Customization
We provide tailored manufacturing solutions to meet diverse project requirements, including customized outer diameter, wall thickness, and length specifications. In addition, we offer precision end preparation and a full range of anti-corrosion coating options to ensure optimal performance in various operating environments. This flexibility enables us to deliver line pipe solutions that align seamlessly with your technical and application needs.
Fast & Reliable Lead Time
With strong mill partnerships and readily available inventory resources, we are able to shorten production cycles and respond quickly to urgent project demands. Our integrated supply network ensures stable material availability, efficient scheduling, and on-time delivery — helping clients keep their projects on track without delay.
Advanced Technical & Quality Assurance
Equipped with our own metallurgical laboratories and supported by trusted third-party inspection agencies, we ensure every line pipe meets international standards and project specifications. Comprehensive testing and verification guarantee consistent mechanical properties, chemical composition, and coating integrity, providing clients with reliable, high-quality pipeline solutions.
Rapid Delivery & Complete Logistics
Leveraging fast supply capabilities and a well-established logistics network, we ensure timely delivery of line pipes to any project location. Our streamlined transportation and warehousing system minimize lead time, helping clients maintain smooth operations and meet critical project schedules.
