ASTM A213 T11 / ASME SA213 T11 Alloy Steel Seamless Tube & U Bend Tube
High-Temperature Alloy Steel Boiler Tubes for Heat Exchangers & Power Plants
ASTM A213 T11 / ASME SA213 T11 alloy steel seamless tubes are widely used in boilers, superheaters, and heat exchangers for high-temperature and high-pressure applications.
Manufactured from chromium-molybdenum (Cr-Mo) alloy steel, T11 tubes offer excellent thermal stability, oxidation resistance, and creep strength, making them ideal for power plants, petrochemical industries, and industrial heating systems.
As a professional T11 tube manufacturer and exporter in China, we supply both:
- Straight Tubes
- U Bend Tubes
- Boiler Tubes
Product Specifications
| Item | Description |
|---|---|
| Material | ASTM A213 / ASME SA213 T11 |
| Type | Seamless (SMLS), U Bend Tube |
| Standard | ASTM A213 / ASME SA213 |
| Equivalent Material | P11 (ASTM A335) |
| Size Range (OD) | 6.35 mm – 152.4 mm |
| Length | 5.8m, 6m, 12m or customized |
| Manufacturing | Hot Rolled / Cold Drawn |
| Application | Boiler, Heat Exchanger, Condenser, Heater |
ASTM A213 / ASME SA213 T11 Alloy Steel SMLS Tubes Chemical Compositions
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
| 0.15 max | 0.30-0.60 | 0.025 max | 0.025 max | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
Mechanical Properties of ASTM A213 / ASME SA213 T11 Alloy Steel SMLS Tubes:
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 415 min | 205 min | 30 min | 179 max |
ASME SA 213 Alloy Steel T11 Tubes Outside Diameter & Tolerance :
| Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 | |
| 101.6＜OD≤190.5 | +0.4/-1.2 | |
| 190.5＜OD≤228.6 | +0.4/-1.6 | |
| Cold Drawn | Outside Diameter, mm | Tolerance, mm |
| OD＜25.4 | ±0.10 | |
| 25.4≤OD≤38.1 | ±0.15 | |
| 38.1＜OD＜50.8 | ±0.20 | |
| 50.8≤OD＜63.5 | ±0.25 | |
| 63.5≤OD＜76.2 | ±0.30 | |
| 76.2≤OD≤101.6 | ±0.38 | |
| 101.6＜OD≤190.5 | +0.38/-0.64 | |
| 190.5＜OD≤228.6 | +0.38/-1.14 |
ASME SA213 T11 tube Wall thickness & Tolerance :
| Hot rolled | Outside Diameter, mm | Tolerance, % |
| OD≤101.6, WT≤2.4 | +40/-0 | |
| OD≤101.6, 2.4＜WT≤3.8 | +35/-0 | |
| OD≤101.6, 3.8＜WT≤4.6 | +33/-0 | |
| OD≤101.6, WT>4.6 | +28/-0 | |
| OD>101.6, 2.4＜WT≤3.8 | +35/-0 | |
| OD>101.6, 3.8＜WT≤4.6 | +33/-0 | |
| OD>101.6, WT>4.6 | +28/-0 | |
| Cold Drawn | Outside Diameter, mm | Tolerance, % |
| OD≤38.1 | +20/-0 | |
| OD>38.1 | +22/-0 |
Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; customized
ASME SA213 T11 tube Quality control
- The Steel shall be killed.
- The Tubes shall be made by the seamless process and shall be either hot-finished or cold finished, as specified.
- Heat Treatment – Ferritic Alloy and Ferritic Stainless Steels – The ferritic alloy and ferritic stainless steels shall be reheated for heat treatment in accordance with the requirements of Standard. Heat treatment shall be carried out separately and in addition to heating for hot forming.
- Flattening Test—One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot
- Flaring Test—One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot
- Hydrostatic or Nondestructive Electric Test—Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.
Note:
- Mill test certificates will be issued according to EN10204.3
- All tubes shall be supplied as per applicable ASME SA213M / SA213 Specification
ASME SA213 T11 tube Packing and Marking
- Packed in bundles or ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.
- Marking prescribed in Specification A 1016/A 1016M, the marking shall include whether the tube is hot-finished or cold-finished and including not limited: Standard, graded, size, heat no. lot no.
Popular size for ASME SA213 T11 tube
| WT: | 0.89MM, 1MM, 1.24MM, 1.5MM, 1.65MM, 2MM, 2.11MM, 2.463MM, 2.5MM, 2.77MM, 3.05MM, 3.4MM | Application: | Boiler,Heat Exchanger, Cooling, Condenser , Heater |
|---|---|---|---|
| OD: | 6.35MM , 9.52MM, 12.7MM , 15.88MM , 19.05MM, 20MM, 22,23MM, 25MM, 25.4MM , 31.75MM, 38.1MM , 44.45MM, 50.8MM , 63.5MM , 76.2MM, 88.9MM, 101.6MM, 152.4MM | NDT: | ET / UT/ HT/ P |
Inspection & Quality Control
- Flattening test
- Flaring test
- Hydrostatic or NDT testing
- UT / ET / HT inspection
- Heat treatment compliance
- PMI (optional)
Each tube is tested to ensure high reliability and safety performance.
FAQ
Q1: What is ASTM A213 T11 tube used for?
A: It is used in boilers, heat exchangers, and high-temperature piping systems.
Q2: What is the difference between T11 and P11?
A: T11 is for tubes, while P11 is for pipes, but both have similar chemical composition.
Q3: Are T11 tubes suitable for high-temperature service?
A: Yes, they are specifically designed for high-temperature and high-pressure environments.
Differences between ASTM A213 T11 and ASME SA213 T11
ASTM A213 T11 and ASME SA213 T11 are essentially equivalent specifications for seamless ferritic alloy steel tubes. Both of the standards are used for high-temperature applications such as boilers, superheaters, and heat exchangers.
ASTM A213 T11: Published by the American Society for Testing and Materials (ASTM).
ASME SA213 T11: Published by the American Society of Mechanical Engineers (ASME), primarily for use in boiler and pressure vessel codes.Which requires additional certification for compliance with ASME Boiler and Pressure Vessel Code (BPVC)..
Chemical and mechanical properties are the same for both ASTM A213 T11 and ASME SA213 T11.
The only difference between those 2 standards is that ASME SA213 being tailored for pressure vessel code applications.
The A213 T11 tube is a reliable solution for high-temperature and high-pressure applications. Its excellent balance of strength, corrosion resistance, and cost-effectiveness makes it a preferred material for boilers, superheaters, and heat exchangers across various industries.
