ASME SA213 T2 Seamless Alloy Steel Tube for Boiler and Heat Exchanger Applications
ASME SA213 T2 seamless alloy steel tube is a chromium-molybdenum alloy tube designed for boiler, superheater, and heat exchanger applications under elevated temperature service conditions.
Manufactured according to ASTM A213 / ASME SA213 specifications, T2 alloy tubes are produced with controlled chemical composition, mechanical properties, and dimensional requirements for thermal equipment manufacturing.
The T2 grade is commonly classified as a 0.5Cr-0.5Mo alloy steel tube, containing chromium and molybdenum alloy elements to meet the requirements of high-temperature boiler and heat transfer equipment applications.
Material and Standard
T2 Chromium Molybdenum Alloy Steel
Standard: ASTM A213 / ASME SA213
Material Grade: T2
UNS Number: K11547
Equivalent Grades: P2, 12CrMo, 12XM, STBA20, STPA20
Material Type: Chromium Molybdenum Alloy Steel
Tube Type: Seamless Tube
ASME SA213 specifies seamless ferritic and austenitic alloy steel tubes used for boilers, superheaters, and heat exchangers.
Chemical Composition
| Element |
Requirement |
| Carbon (C) |
0.10 - 0.20% |
| Manganese (Mn) |
0.30 - 0.61% |
| Silicon (Si) |
0.10 - 0.30% |
| Chromium (Cr) |
0.50 - 0.81% |
| Molybdenum (Mo) |
0.44 - 0.65% |
| Phosphorus (P) |
≤0.025% |
| Sulfur (S) |
≤0.025% |
Chemical composition shall comply with ASTM A213 / ASME SA213 requirements.
Manufacturing Process
Seamless Tube Production
ASME SA213 T2 tubes are manufactured through seamless tube production processes, including:
- Alloy steel billet preparation
- Hot extrusion or hot rolling
- Cold drawing (when required)
- Heat treatment
- Straightening
- Surface finishing
- Final inspection
The manufacturing process is controlled to achieve required tube dimensions and material properties.
Technical Features
0.5Cr-0.5Mo Alloy Structure
The chromium and molybdenum alloy composition provides a material option for boiler and heat exchanger systems operating under elevated temperature conditions.
Seamless Tube Construction
The seamless structure provides uniform tube geometry without longitudinal weld seams, making it suitable for thermal equipment requiring controlled tube integrity.
High Temperature Equipment Application
T2 alloy steel tubes are commonly applied in:
- Boiler components
- Superheater systems
- Heat exchanger equipment
- Industrial thermal processing systems
Product Specifications
| Item |
Specification |
| Product Name |
ASME SA213 T2 Seamless Alloy Tube |
| Standard |
ASTM A213 / ASME SA213 |
| Material Grade |
T2 / K11547 |
| Alloy Type |
0.5Cr-0.5Mo Alloy Steel |
| Tube Type |
Seamless |
| Shape |
Round Tube |
| Manufacturing |
Hot Rolled / Cold Drawn |
| Surface |
Mill Finished / Customized |
| Length |
6 Meters or Customized |
| Application |
Boiler, Superheater, Heat Exchanger |
Available Sizes
| Parameter |
Range |
| Outside Diameter |
Customized |
| Wall Thickness |
Customized |
| Length |
Fixed Length / Customized |
| Surface Condition |
Mill Finished / Polished |
| Inspection |
ET, UT, Hydrostatic Test |
Tube dimensions can be supplied according to equipment design requirements.
Applications
Boiler Equipment
ASME SA213 T2 seamless tubes are used in:
- Boiler water tubes
- Superheater tubes
- Steam generation equipment
Heat Exchanger Systems
Typical applications include:
- Shell and tube heat exchangers
- Industrial heat transfer equipment
- Condenser systems
Power and Industrial Plants
Used in:
- Power generation facilities
- Petrochemical equipment
- Thermal processing systems
Quality Control and Inspection
Inspection procedures may include:
Chemical Analysis
- Alloy composition verification
Mechanical Testing
- Tensile testing
- Yield strength testing
- Hardness testing
Non-Destructive Testing
- Eddy Current Testing (ET)
- Ultrasonic Testing (UT)
- Hydrostatic Testing
Inspection requirements can be adjusted according to project specifications.
Packaging
ASME SA213 T2 alloy tubes are supplied with protection suitable for transportation.
Packaging methods include:
- Tube bundles
- Protective caps
- Steel frame packaging
- Export seaworthy packaging
Tube markings may include:
- Standard designation
- Material grade
- Size information
- Heat number
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