ASTM A213 / ASME SA213 Grade T11 Seamless Alloy Steel Tube Round Boiler Tube
ASTM A213 / ASME SA213 T11 Seamless Alloy Steel Tube for Heat Exchanger and Boiler
Why Are They Important?
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Strong and Durable: These tubes are strong enough to hold up under high pressure and heat. Imagine a pipe carrying very hot steam in a power plant – these tubes can handle that without bursting.
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Resistant to Heat: They don't easily wear out or corrode when exposed to high temperatures for long periods. This makes them perfect for places where other materials might fail.
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Safe and Reliable: Because they are so strong and durable, they help keep things safe. For example, in a power plant, if a tube breaks, it could cause a big problem. Using T11 tubes helps prevent that.
Heat treatment types for common grades
a. For grades T9, T11, T22, heat treatment methods are full or isothermal anneal, normalize and temper. (For conditions in later option, tempering temperature for T9 and T22 is above 675℃, T11 is above 650℃.)
b. For grades T91, T92, shall be normalize and temper, where normalizing shall be above 1040℃, tempering shall be above 730℃. As the delivery conditions.
SA213/A213 T11 is a Seamless ferritic and austenitic alloy steel Boiler Tube
| Carbon | Chromiun | Low Temperature | Stainless Steel | Duplex | Copper& Bronze | Titanium | Ni-Alloy | ||
| SA178-A | SA213-T1 | SA333-Gr.1 | SA213 | TP316L | A789-S31803 | SB111-C70600 | SB338-GR.1 | SB163 | NO2200 |
| SA178-C | SA213-T11 | SA333-Gr.3 | SA249 | TP316H | A789-S32205 | SB111-C71500 | SB338-GR.2 | SB167 | NO2201 |
| SA179 | SA213-T12 | SA333-Gr.6 | SA268 | TP316Ti | A789-S32750 | SB111-C71640 | SB338-GR.5 | SB444 | NO8020 |
| SA192 | SA213-T22 | SA333-Gr.7 | SA269 | TP316LN | A789-S32760 | SB111-C68700 | SB338-GR.7 | SB514 | NO6022 |
| SA209-T1 | SA213-T5 | SA333-Gr.8 | SA376 | TP321 | A789-S32707 | SB111-C44300 | SB338-GR.9 | SB619 | N10276 |
| SA209-T1a | SA213-T9 | SA334-Gr.1 | TP304 | TP321H | A789-S32304 | SB338-GR.12 | SB622 | NO4400 | |
| SA209-T1b | SA213-T91 | SA334-Gr.3 | TP304L | TP347 | A789-S31500 | SB626 | NO6600 | ||
| SA210-A1 | SA334-Gr.6 | TP304H | TP347H | S31254 | SB674 | NO6601 | |||
| SA210-C | SA334-Gr.7 | TP304N | TP405 | 254MA | SB677 | NO6625 | |||
| SA214 | SA334-Gr.8 | TP310H | TP409 | 17-4PH | SB704 | NO690 | |||
| SA513 MT 1010 | TP310S | TP410 | 17-7PH | SB705 | NO8800 | ||||
| SA513 MT 1015 | TP309S | TP430 | 15-7PH | N1001 | NO8810 | ||||
| SA513 MT 1020 | TP317 | TP439 | N10665 | NO8811 | |||||
| TP317L | TP444 | N10675 | NO8825 | ||||||
| TP348 | TP446 | TP904L | |||||||
| TP347HFG | |||||||||
| Tube Sizes for Heat Exchangers & Condensers & Boiler | |||||||||
|
Outside Diameter |
BWG | ||||||||
| 25 | 22 | 20 | 18 | 16 | 14 | 12 | 10 | ||
| Wall Thickness mm | |||||||||
| 0.508 | 0.71 | 0.89 | 1.24 | 1.65 | 2.11 | 2.77 | 3.40 | ||
| mm | inch | Weight kg/m | |||||||
| 6.35 | 1/4 | 0.081 | 0.109 | 0.133 | 0.174 | 0.212 | |||
| 9.53 | 3/8 | 0.126 | 0.157 | 0.193 | 0.257 | 0.356 | 0.429 | ||
| 12.7 | 1/2 | 0.214 | 0.263 | 0.356 | 0.457 | 0.612 | 0.754 | ||
| 15.88 | 5/8 | 0.271 | 0.334 | 0.455 | 0.588 | 0.796 | 0.995 | ||
| 19.05 | 3/4 | 0.327 | 0.405 | 0.553 | 0.729 | 0.895 | 1.236 | ||
| 25.4 | 1 | 0.44 | 0.546 | 0.75 | 0.981 | 1.234 | 1.574 | 2.05 | |
| 31.75 | 1 1/4 | 0.554 | 0.688 | 0.947 | 1.244 | 1.574 | 2.014 | 2.641 | |
| 38.1 | 1 1/2 | 0.667 | 0.832 | 1.144 | 1.514 | 1.904 | 2.454 | 3.233 | |
| 44.5 | 1 3/4 | 1.342 | 1.774 | 2.244 | 2.894 | 3.5 | |||
| 50.8 | 2 | 1.549 | 2.034 | 2.574 | 3.334 | 4.03 | |||
| 63.5 | 2 1/2 | 1.949 | 2.554 | 3.244 | 4.214 | 5.13 | |||
| 76.2 | 3 | 2.345 | 3.084 | 3.914 | 5.094 | 6.19 | |||
| 88.9 | 3 1/2 | 2.729 | 3.609 | 4.584 | 5.974 | 7.27 | |||
| 101.6 | 4 | 4.134 | 5.254 | 6.854 | 8.35 | ||||
| 114.3 | 4 1/2 | 4.654 | 5.924 | 7.734 | 9.43 | ||||
ASTM A213/ASME SA213 T2, T11, T12, T22, T91, T92 Boiler tubes Chemical Composition and Mechanical Properties
| Grade | Chemical Composition% | ||||||||
| C | Si | Mn | P, S Max | Cr | Mo | Ni Max | V | Al Max | |
| T2 | 0.10~0.20 | 0.10~0.30 | 0.30~0.61 | 0.025 | 0.50~0.81 | 0.44~0.65 | – | – | – |
| T11 | 0.05~0.15 | 0.50~1.00 | 0.30~0.60 | 0.025 | 1.00~1.50 | 0.44~0.65 | – | – | – |
| T12 | 0.05~0.15 | Max 0.5 | 0.30~0.61 | 0.025 | 0.80~1.25 | 0.44~0.65 | – | – | – |
| T22 | 0.05~0.15 | Max 0.5 | 0.30~0.60 | 0.025 | 1.90~2.60 | 0.87~1.13 | – | – | – |
| T91 | 0.07~0.14 | 0.20~0.50 | 0.30~0.60 | 0.02 | 8.0~9.5 | 0.85~1.05 | 0.4 | 0.18~0.25 | 0.015 |
| T92 | 0.07~0.13 | Max 0.5 | 0.30~0.60 | 0.02 | 8.5~9.5 | 0.30~0.60 | 0.4 | 0.15~0.25 | 0.015 |
| Grade | Chemical Composition% | Mechanical Properties | |||||||
| W | B | Nb | N | T. S | Y. P | Elongation | Hardness | ||
| T2 | – | – | – | – | ≥ 415MPa | ≥ 205MPa | ≥ 30% | 163HBW(85HRB) | |
| T11 | – | – | – | – | ≥ 415MPa | ≥ 205MPa | ≥ 30% | 163HBW(85HRB) | |
| T12 | – | – | – | – | ≥ 415MPa | ≥ 220MPa | ≥ 30% | 163HBW(85HRB) | |
| T22 | – | – | – | – | ≥ 415MPa | ≥ 205MPa | ≥ 30% | 163HBW(85HRB) | |
| T91 | – | – | 0.06~0.10 | 0.03~0.07 | ≥ 585MPa | ≥ 415MPa | ≥ 20% | 250HBW(25HRB) | |
| T92 | 1.50~2.00 | 0.001~0.006 | 0.04~0.09 | 0.03~0.07 | ≥ 620MPa | ≥ 440MPa | ≥ 20% | 250HBW(25HRB) | |
ASTM A213/ASME SA213 T2, T11, T12, T22, T91, T92 Boiler Tubes Tolerance
Permissible variations from the specified minimum wall thickness shall be in accordance with Specification A1016/A1016M.
| Outside Diameter | OD Tolerance | WT Tolerance | Ovality Tolerance | Cut Length Tolerance |
| OD≤ 12, 7 mm | ± 0, 13 mm | ± 15 % | – | + 3, 18 mm, – 0 mm |
| 12, 7 mm < OD ≤ 38, 1 mm | ± 0, 13 mm | ± 10 % | max, 1, 65 mm | + 3, 18 mm, – 0 mm |
| 38, 1 mm < OD ≤ 88, 9 mm | ± 0, 25 mm | ± 10 % | max, 2, 41 mm | + 4, 76 mm, – 0 mm |
Applications
- Petrochemical Industry
- Chemical Industry
- Nuclear Power Plant Industry
- Oil and Gas Industry
- Research & Development
- Mega Projects & Defense & Development Industries
- Pulp & Paper Indusry
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