ASTM A213 T5b
ASTM A213 T5b - seamless steel tube
The ASME SA-213/ ASTM A213 Grade T11 seamless tubes, with the nominal composition of 1.25Cr-0.5Mo-Si, are widely used for the construction of boilers, superheaters, and heat exchangers.
Download PDFASTM A213 T11 seamless alloy pipe is a type of high-performance piping made from an alloy steel specifically designed for high-temperature applications. This pipe is commonly used in the oil and gas, chemical, and power generation industries due to its excellent mechanical properties and resistance to thermal stress.
ASTM A213 T11 seamless alloy pipe is a crucial component in high-temperature and high-pressure applications, offering exceptional mechanical properties and reliability. Its ability to withstand harsh environments makes it an excellent choice for various industries, including power generation, oil and gas, and chemical processing.
The ASME SA-213/ ASTM A213 Grade T11 seamless tubes, with the nominal composition of 1.25Cr-0.5Mo-Si, are widely used for the construction of boilers, superheaters, and heat exchangers.
The ASTM A213 T11 seamless tubes are primarily used for the construction of boilers, superheaters, and heat exchangers. When working at elevated temperatures, steam decomposes at metal surfaces to hydrogen and oxygen and may cause steam oxidation of steel, which is somewhat more severe than air oxidation at the same temperature. Fluctuating steam temperatures tend to increase the rate of oxidation by causing scale to spall, which exposes fresh metal to further attack. As a rule of thumb, given the metal surface oxidation criteria, the maximum use temperature of Grade T11 tubes is 565°C [1050°F]; given the consideration; given the strength criteria of metal midsection, the maximum used temperature of Grade T11 tubes is 560°C [1040°F].
Alloy grade T11 steel offers high oxidation resistance, plasticity and thermal strength even at up 580℃. It has good weldability, needs preheating to 300℃ before welding and removing stress treatment after welding, has been widely used in high pressure, ultra-high pressure, subcritical power station boiler superheater, header and main steam duct. WIHO metals is a leading alloy steel tube supplier and manufacturer, we supply alloy steel ASTM A213 Grade T11 Seamless steel tubes manufactured in hot finished or cold finished and equivalent material for boiler and economizer, heater, superheater and reheater system in various sizes and specifications.
Grade T11 and P11 seamless steel pipes are included in ASTM or ASME suited for boiler superheater, reheater pipe and heat-exchanger tubes. Grade T11 specified in ASTM A213 covers seamless Ferritic and Austenitic steel tube, and ASTM A335 Grade P11 Seamless Ferritic Alloy-Steel Pipe and are used mainly for High-Temperature Services such as boiler, superheater, and heat exchanger. We can say that Gr T11 and P11 have been substituted for another one when the same purpose.
WIHO metals is a leading alloy steel tube supplier and manufacturer, we supply alloy steel ASTM A213 Grade T11 and ASTM A335 Grade P11 seamless steel tubes manufactured in hot finished or cold finished and equivalent material for boiler and economizer, heater, superheater and reheater system in various sizes and specifications.
ASTM A213 T11 Seamless alloy tube sizes and thicknesses usually furnished to this specification are 1⁄8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification.
| UNS | ASTM | EN | DIN | JIS | GB |
|---|---|---|---|---|---|
| K11597 | P11 | 10CrMo5-5 | 1.7338 | STBA23 | 12Cr1MoV |
| Grade | C | Mn | P | S | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| Gr.T11 | 0.05-0.15 | 0.30-0.60 | ≤0.025 | ≤0.035 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| Material | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation(%) | Hardness(HRB) |
|---|---|---|---|---|
| Gr.T11 | ≥415 | ≥220 | ≥30 | ≤85 |
ASTM A213 T11 Alloy Pipe is a seamless ferritic alloy steel pipe primarily used in high-temperature services like boilers, superheaters, and heat exchangers. The T11 grade consists of chromium (1.00-1.50%) and molybdenum (0.44-0.65%), enhancing its high-temperature strength and corrosion resistance. This material conforms to ASTM A213 specifications, ensuring it meets strict quality standards for both mechanical properties and chemical composition. T11 pipes are known for their durability and ability to withstand extreme conditions, making them ideal for the power generation and petrochemical industries.
SA 213 T11, also known as ASTM A213 T11, has several equivalent designations depending on the standard used. Some common matches include EN 10216-2 Grade T11, ASTM A335 Grade P11, and GOST 550-75 T11.
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| Condition | Typical Application |
|---|---|
| High Temperature | Boilers, superheaters, steam headers |
| Low Temperature | Cryogenic processing systems |
| High Pressure | Power & process piping |
| Corrosive Media | Chemical & petrochemical plants |
| Creep Service | Thermal power stations |
| Product | Specification |
|---|---|
| Seamless Pipes | ASTM A335 P1 / P5 / P9 / P11 / P22 / P91 |
| Butt Weld Fittings | ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91 |
| Forged Fittings & Flanges | ASTM A182 F1 / F5 / F9 / F11 / F22 / F91 |
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