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ASTM A213 / ASME SA213 T11 Seamless Alloy Steel Tube for Heat Exchanger and Boiler
Why Are They Important?
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) |
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 |
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