Boiler Tubes & Pipes
Talk To Us – We’re Here To Help
Boiler Tubes Manufacturer & Distributor, Fire Tube Boiler, Boiler Tube Material Specification, Carbon Steel Cold Drawn Seamless Straight & ‘U’ Bend Tubes & Pipes For Boilers, Alloy Steel Cold Drawn Seamless Straight & ‘U’ Bend Tubes & Pipes For Boilers
Solitaire Steel is a top manufacturer and supplier of Carbon and Alloy Steel Cold Drawn Seamless Tubes, including both straight and U-bend types, specifically designed for boiler applications. We export these high-quality tubes from India.
Boiler tubes are essential components in systems that transfer heat from hot gas or steam to water, producing steam for various applications. These tubes are categorized into two main types: fire-tube and water-tube, with common materials including SA213-T12 for carbon steel or alloy steel. They are widely used in steam boilers and power plants, as well as in fossil fuel facilities and industrial processing plants.
SA 214 tubes, primarily used in high-pressure and medium-pressure applications, undergo processes like heat treatment, quenching, tempering, and annealing. These steps improve the tubes’ performance by enhancing their strength and removing brittleness and internal stress.
SA 214 Carbon Steel Tubes are known for their excellent qualities at high temperatures and are classified according to standards such as BS 3059. This low-carbon steel, which contains added manganese, offers good machinability and can be hardened through carburization, though it is generally less hard than high-carbon steel.
Specification of Boiler Tubes & Pipe
Boiler Tubes Size Range | : | 1/2” NB to 36” NB |
Wall Thickness | : | SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules |
Carbon Steel Pipe Specifications | : | ASTM A/ASME SA 53 Grade A, B | ASTM A/ASME SA 106 Grade A, B, C | ASTM A/ASME SA 333 Grade 1, 6 | API 5L – PSL 1 Gr. A, B, X42, X46, X52, X56, X60, X65, X70 | API 5L – PSL 2 Gr. B, X42, X46, X52, X56, X60, X65, X70 |
Weld Alternatives | : | ERW, HF, DSAW/SAWL, SMLS, HSAW |
Specifications | : | ASTM A/ASME SA 179 | ASTM A/ASME SA 192, ASTM A/ASME SA 210 Gr. 1, C | BS 3059 PART II GR. 360, 440, 620 | DIN 2391, ST 35, ST 37, ST 45, ST 52 |
Size Range | : | 1/2” to 6”, both OD and NB sizes available |
Thickness | : | 50mm to 7.00mm, custom OD and thickness available on request |
End Connections for Line Pipes | : | Plain, Bevel, Screwed, Threaded |
Type | : | Seamless / ERW / Welded / Fabricated / CDW |
Form | : | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pancake Coils, Hydraulic Tubes |
Length | : | Single Random, Double Random & Required Length, Custom Size – 12 Meter lengths |
Test | : | Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Hardness Test, Blow Test, Impact Test, etc.), Exterior Size Inspection, Hydrostatic Test (The standard pressure is limited to 20,7 MPa (3000 psi)), X-ray Test. |
Mill Test Certificate | : | EN 10204/3.1B, Mill TC EN 10204 3.1 | Lab Test Reports | Ex-Stock |
Third party inspection | : | SGS, BV, Lloyds etc. |
ASTM A213/ASME SA213 T2,T11,T12,T22,T91,T92 Tolerance
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 |
SA 214 Carbon Steel Tubes Pressure Rating
Nominal Size (mm) |
Schedule no. | Wall Thickness (mm) |
Temperature (oC) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
-29 – 38 | 205 | 260 | 350 | 370 | 400 | 4301) | 450 | ||||
Maximum Allowable Stress (MPa) | |||||||||||
137.8 | 137.8 | 130.2 | 117.1 | 115.7 | 89.6 | 74.4 | 59.9 | ||||
15 | STD | 40 | 2.77 | 34416 | 34416 | 32528 | 29255 | 28910 | 22372 | 18589 | 14972 |
XS | 80 | 3.73 | 48092 | 48092 | 45466 | 40878 | 40396 | 31260 | 25969 | 20918 | |
160 | 4.78 | 62830 | 62830 | 59378 | 53404 | 52777 | 40837 | 33929 | 27333 | ||
XXS | 7.47 | 98245 | 98245 | 92836 | 83507 | 82522 | 63857 | 53053 | 42739 | ||
20 | STD | 40 | 2.87 | 28070 | 28070 | 26526 | 23860 | 23578 | 18245 | 15158 | 12209 |
XS | 80 | 3.91 | 39418 | 39418 | 37247 | 33506 | 33106 | 25617 | 21283 | 17142 | |
160 | 5.56 | 58152 | 58152 | 54955 | 49429 | 48843 | 37799 | 31398 | 25293 | ||
XXS | 7.82 | 83107 | 83107 | 78539 | 70643 | 69809 | 54024 | 44881 | 36152 | ||
25 | STD | 40 | 3.38 | 26251 | 26251 | 24804 | 22310 | 22048 | 17060 | 14173 | 11417 |
XS | 80 | 4.55 | 36283 | 36283 | 34285 | 30862 | 30474 | 23584 | 19595 | 15785 | |
160 | 6.35 | 52481 | 52481 | 49594 | 44606 | 44082 | 34112 | 28339 | 22827 | ||
XXS | 9.09 | 77030 | 77030 | 72793 | 65476 | 64704 | 50070 | 41595 | 33506 | ||
32 | STD | 40 | 3.56 | 21614 | 21614 | 20421 | 18369 | 18155 | 14049 | 11672 | 9404 |
XS | 80 | 4.85 | 30178 | 30178 | 28518 | 25651 | 25348 | 19616 | 16295 | 13125 | |
160 | 6.35 | 40596 | 40596 | 38364 | 34505 | 34099 | 26389 | 21924 | 17659 | ||
XXS | 9.70 | 64601 | 64601 | 61045 | 54906 | 54266 | 41988 | 34884 | 28097 | ||
40 | STD | 40 | 3.68 | 19444 | 19444 | 18375 | 16529 | 16329 | 12636 | 10550 | 8454 |
XS | 80 | 5.08 | 27402 | 27402 | 25900 | 23295 | 23019 | 17811 | 14800 | 11919 | |
160 | 7.14 | 39738 | 39738 | 37599 | 33816 | 33416 | 25858 | 21483 | 17308 | ||
XXS | 10.16 | 58779 | 58799 | 55547 | 49966 | 49374 | 38205 | 31742 | 25569 | ||
50 | STD | 40 | 3.91 | 16378 | 16378 | 15468 | 13925 | 13759 | 10645 | 8847 | 7124 |
XS | 80 | 5.54 | 23653 | 23653 | 22351 | 20105 | 19871 | 15378 | 12774 | 10287 | |
160 | 8.74 | 38866 | 38866 | 36731 | 33037 | 32652 | 25266 | 20987 | 16908 | ||
XXS | 11.07 | 50793 | 50793 | 48003 | 43173 | 42670 | 33017 | 27429 | 22096 | ||
65 | STD | 40 | 5.16 | 17914 | 17914 | 16929 | 15227 | 15048 | 11644 | 9674 | 7793 |
XS | 80 | 7.01 | 24818 | 24818 | 23447 | 21097 | 20849 | 16129 | 13401 | 10797 | |
160 | 9.53 | 34615 | 34615 | 32714 | 29420 | 29076 | 22503 | 18693 | 15055 | ||
XXS | 14.02 | 53081 | 53081 | 50159 | 45116 | 44585 | 34498 | 28662 | 23088 | ||
80 | STD | 40 | 5.49 | 15558 | 15558 | 14969 | 13222 | 13063 | 10108 | 8399 | 6766 |
XS | 80 | 7.62 | 21986 | 21968 | 20780 | 18693 | 18472 | 14290 | 11871 | 9563 | |
160 | 11.13 | 33079 | 33079 | 31253 | 28111 | 27780 | 21497 | 17859 | 14386 | ||
XXS | 15.24 | 46976 | 46976 | 44392 | 39928 | 39459 | 30536 | 25369 | 20436 | ||
100 | STD | 40 | 6.02 | 13187 | 13187 | 12464 | 11210 | 11079 | 8571 | 7124 | 5739 |
XS | 80 | 8.56 | 19058 | 19058 | 18010 | 16198 | 16012 | 12388 | 12094 | 8289 | |
120 | 11.13 | 25190 | 25190 | 23805 | 21407 | 21159 | 16371 | 13601 | 10995 | ||
160 | 13.49 | 31019 | 31019 | 29310 | 26368 | 26058 | 20160 | 16750 | 13208 | ||
XXS | 17.12 | 40348 | 40348 | 38129 | 34298 | 33892 | 26230 | 21786 | 17549 | ||
125 | STD | 40 | 6.55 | 11561 | 11561 | 10921 | 9825 | 9708 | 7510 | 6243 | 5038 |
XS | 80 | 9.53 | 17060 | 17060 | 16122 | 14503 | 14331 | 11093 | 9212 | 7421 | |
120 | 12.70 | 23130 | 23130 | 21855 | 19657 | 19430 | 15034 | 12492 | 10059 | ||
160 | 15.88 | 29407 | 29407 | 27787 | 24997 | 24701 | 19113 | 15881 | 12795 | ||
XXS | 19.05 | 35897 | 35897 | 33926 | 30516 | 30158 | 23337 | 19388 | 15620 | ||
150 | STD | 40 | 7.11 | 10550 | 10550 | 9928 | 8924 | 8819 | 6828 | 5370 | 4568 |
XS | 80 | 10.97 | 16474 | 16474 | 15571 | 14007 | 13842 | 10707 | 8895 | 7165 | |
120 | 14.27 | 21745 | 21745 | 20553 | 18448 | 18265 | 14138 | 11747 | 9460 | ||
XXS | 160 | 18.26 | 28325 | 28325 | 26768 | 24074 | 23784 | 18410 | 15296 | 12319 | |
200 | 20 | 6.35 | 7138 | 7138 | 6745 | 6063 | 5994 | 4637 | 3852 | 3100 | |
30 | 7.04 | 7924 | 7924 | 7489 | 6732 | 6656 | 5147 | 4279 | 3445 | ||
STD | 40 | 8.18 | 9246 | 9246 | 8737 | 7855 | 7765 | 6008 | 4995 | 4024 | |
60 | 10.31 | 11741 | 11741 | 11093 | 9977 | 9860 | 7627 | 6339 | 5105 | ||
XS | 80 | 12.70 | 14572 | 14572 | 13766 | 12388 | 12237 | 9474 | 7868 | 6338 | |
100 | 15.09 | 17452 | 17452 | 16488 | 14834 | 14655 | 11341 | 9426 | 7593 | ||
120 | 18.26 | 21345 | 21345 | 20174 | 18148 | 17935 | 13876 | 11527 | 9288 | ||
140 | 20.62 | 24308 | 24308 | 22971 | 20656 | 20415 | 15799 | 13125 | 10569 | ||
XXS | 22.23 | 26334 | 26334 | 24877 | 22386 | 22124 | 17115 | 14221 | 11458 | ||
160 | 23.01 | 27340 | 27340 | 25838 | 23240 | 22964 | 17769 | 14765 | 11892 | ||
250 | 20 | 6.35 | 5698 | 5698 | 5388 | 4844 | 4789 | 3707 | 3080 | 2480 | |
30 | 7.8 | 7028 | 7028 | 6642 | 5974 | 5905 | 4568 | 3796 | 3059 | ||
STD | 40 | 9.27 | 8385 | 8385 | 7923 | 7131 | 7048 | 5450 | 4527 | 3652 | |
XS | 60 | 12.7 | 11596 | 11596 | 10955 | 9853 | 9736 | 7538 | 6263 | 5043 | |
80 | 15.09 | 13863 | 13863 | 13098 | 11781 | 11644 | 9012 | 7483 | 6028 | ||
100 | 18.26 | 16922 | 16922 | 15992 | 14386 | 14214 | 10996 | 9136 | 7359 | ||
120 | 21.44 | 20036 | 20036 | 18934 | 17032 | 16825 | 13022 | 10817 | 8716 | ||
XXS | 140 | 25.4 | 23998 | 23998 | 16474 | 20394 | 20153 | 15599 | 12960 | 10438 | |
160 | 28.58 | 27229 | 27229 | 25734 | 23143 | 22875 | 17700 | 14703 | 11844 | ||
300 | 20 | 6.35 | 4795 | 4795 | 4534 | 4072 | 4024 | 3114 | 2591 | 2088 | |
30 | 8.38 | 6359 | 6359 | 6008 | 5402 | 5540 | 4134 | 3431 | 2763 | ||
STD | 9.53 | 7241 | 7241 | 6842 | 6153 | 6084 | 4706 | 3914 | 3149 | ||
40 | 10.31 | 7854 | 7854 | 7421 | 6676 | 6601 | 5015 | 4244 | 3417 | ||
XS | 12.70 | 9722 | 9722 | 9191 | 8268 | 8165 | 6318 | 5250 | 4230 | ||
60 | 14.27 | 10969 | 10969 | 10363 | 9322 | 9212 | 7131 | 5925 | 4768 | ||
80 | 17.48 | 13525 | 13525 | 12850 | 11492 | 11362 | 8792 | 7303 | 5884 | ||
100 | 21.44 | 16736 | 16736 | 15819 | 14227 | 14062 | 10879 | 9040 | 7283 | ||
XXS | 120 | 25.4 | 20015 | 20015 | 18913 | 17011 | 16811 | 13008 | 10804 | 8702 | |
140 | 28.58 | 22682 | 22682 | 21435 | 19278 | 19051 | 14744 | 12244 | 9866 | ||
160 | 33.32 | 26740 | 26740 | 25273 | 22730 | 22461 | 17383 | 14441 | 11630 | ||
350 | 10 | 6.35 | 4361 | 4361 | 4120 | 3707 | 3665 | 2831 | 2356 | 1895 | |
20 | 7.92 | 5457 | 5457 | 5161 | 4644 | 4589 | 3548 | 2949 | 2377 | ||
STD | 30 | 9.53 | 6580 | 6580 | 6222 | 5595 | 5533 | 4279 | 3555 | 2866 | |
40 | 11.13 | 7717 | 7717 | 7310 | 6559 | 6477 | 5016 | 4168 | 3355 | ||
XS | 12.70 | 8833 | 8833 | 8351 | 7510 | 7421 | 5739 | 4768 | 3845 | ||
60 | 15.09 | 10541 | 10541 | 9963 | 8964 | 8861 | 6855 | 5691 | 4589 | ||
80 | 19.05 | 13421 | 13421 | 12684 | 11410 | 11272 | 9723 | 7248 | 5836 | ||
100 | 23.83 | 16949 | 16949 | 16019 | 14407 | 14242 | 11017 | 9157 | 7372 | ||
120 | 27.79 | 19933 | 19933 | 18837 | 16943 | 16743 | 12960 | 10762 | 8675 | ||
140 | 31.75 | 22964 | 22964 | 21703 | 19519 | 19292 | 14931 | 12402 | 9990 | ||
160 | 35.71 | 26051 | 26051 | 24618 | 22144 | 21883 | 16936 | 14069 | 11334 | ||
400 | 10 | 6.35 | 3810 | 3810 | 3603 | 3238 | 3197 | 2474 | 2060 | 1660 | |
20 | 7.92 | 4768 | 4768 | 4507 | 4051 | 4004 | 3100 | 2577 | 2074 | ||
STD | 30 | 9.53 | 5746 | 5746 | 5429 | 4885 | 4830 | 3734 | 3100 | 2501 | |
XS | 40 | 12.70 | 7703 | 7703 | 7283 | 6545 | 6470 | 5009 | 4126 | 3349 | |
60 | 16.66 | 10176 | 10176 | 9618 | 8654 | 8550 | 6614 | 5498 | 4430 | ||
80 | 21.44 | 13208 | 13208 | 12478 | 11224 | 11093 | 8585 | 7131 | 5746 | ||
100 | 26.19 | 16274 | 16274 | 15378 | 13835 | 13670 | 10576 | 8785 | 7076 | ||
120 | 30.96 | 19409 | 19409 | 18341 | 16481 | 16302 | 12616 | 10480 | 8440 | ||
140 | 36.53 | 23130 | 23130 | 21855 | 19657 | 19430 | 15034 | 12492 | 10059 | ||
160 | 40.49 | 25824 | 25824 | 24404 | 21952 | 21697 | 16784 | 13945 | 11238 | ||
450 | 10 | 6.35 | 3383 | 3383 | 3197 | 2873 | 2839 | 2198 | 1826 | 1474 | |
20 | 7.92 | 4230 | 4230 | 3996 | 3597 | 3555 | 2749 | 2287 | 1839 | ||
STD | 9.53 | 5099 | 5099 | 4816 | 4334 | 4286 | 3314 | 2756 | 2219 | ||
XS | 30 | 11.13 | 5967 | 5967 | 5643 | 5071 | 5016 | 3879 | 3225 | 2598 | |
12.70 | 6835 | 6835 | 6456 | 5808 | 5739 | 4437 | 3686 | 2969 | |||
40 | 14.27 | 7696 | 7696 | 7276 | 6545 | 6463 | 5002 | 4155 | 3349 | ||
60 | 19.05 | 10349 | 10349 | 9784 | 8799 | 8695 | 6725 | 5588 | 4499 | ||
80 | 23.83 | 13043 | 13043 | 12326 | 11086 | 10955 | 8475 | 7042 | 5670 | ||
100 | 29.36 | 16219 | 16219 | 15323 | 13787 | 13622 | 10542 | 8757 | 7055 | ||
120 | 34.93 | 19464 | 19464 | 18389 | 16543 | 16350 | 12650 | 10507 | 8468 | ||
140 | 39.67 | 22282 | 22282 | 21056 | 18941 | 18713 | 11483 | 12030 | 9694 | ||
160 | 45.24 | 25638 | 25638 | 24225 | 21793 | 21531 | 16660 | 13842 | 11155 | ||
500 | 10 | 6.35 | 3038 | 3038 | 2873 | 2574 | 2556 | 1977 | 1640 | 1323 | |
STD | 20 | 9.53 | 4582 | 4582 | 4327 | 3893 | 3852 | 2976 | 2474 | 1991 | |
XS | 30 | 12.70 | 6139 | 6139 | 5801 | 5216 | 5154 | 3989 | 3314 | 2666 | |
40 | 15.09 | 7317 | 7317 | 6911 | 6215 | 6146 | 4754 | 3948 | 3183 | ||
60 | 20.62 | 10080 | 10080 | 9522 | 8564 | 8468 | 6552 | 5443 | 4382 | ||
80 | 26.19 | 12898 | 12898 | 12188 | 10962 | 10831 | 8385 | 6966 | 5608 | ||
100 | 32.54 | 16171 | 16171 | 15287 | 13746 | 13580 | 10514 | 8730 | 7035 | ||
120 | 38.10 | 19085 | 19085 | 18037 | 16226 | 16033 | 12409 | 10307 | 8302 | ||
140 | 44.45 | 22475 | 22475 | 21242 | 19106 | 18879 | 14614 | 12140 | 9777 | ||
160 | 50.01 | 25450 | 25450 | 24094 | 21675 | 21421 | 16577 | 13766 | 11093 | ||
600 | 10 | 6.35 | 2529 | 2529 | 2391 | 2150 | 2129 | 1647 | 1364 | 1102 | |
STD | 20 | 9.53 | 3810 | 3810 | 3603 | 3238 | 3197 | 2474 | 2060 | 1660 | |
XS | 12.70 | 5097 | 5097 | 4816 | 4334 | 4286 | 3314 | 2756 | 2219 | ||
30 | 14.27 | 5739 | 5739 | 5423 | 4878 | 4823 | 3734 | 3100 | 2494 | ||
40 | 17.48 | 7055 | 7055 | 6670 | 5994 | 5925 | 4589 | 3810 | 3066 | ||
60 | 24.61 | 10018 | 10018 | 9467 | 8516 | 8420 | 6511 | 5409 | 4361 | ||
80 | 30.96 | 12691 | 12691 | 12002 | 10783 | 10659 | 8254 | 6856 | 5519 | ||
100 | 38.89 | 16102 | 16102 | 15220 | 13690 | 10528 | 10466 | 8695 | 7007 | ||
120 | 46.02 | 19223 | 19223 | 18168 | 16336 | 16150 | 12491 | 10383 | 8364 | ||
140 | 52.37 | 22048 | 22048 | 20835 | 18741 | 18520 | 14331 | 11906 | 9591 | ||
160 | 59.54 | 25279 | 25279 | 23888 | 21489 | 21235 | 16433 | 13649 | 10996 |
Carbon Steel Boiler Tube Wall Thickness
NPS (in) |
Outside Diameter (in) |
Boiler Tubes Schedule | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SCH 10 | SCH 20 | SCH 30 | SCH STD | SCH 40 | SCH 60 | SCH XS | SCH 80 | SCH 100 | SCH 120 | SCH 140 | SCH 160 | SCH XXS | ||
Boiler Tubes Wall Thickness (in) | ||||||||||||||
1/8 | 0.405 | 0.068 | 0.068 | 0.095 | 0.095 | |||||||||
1/4 | 0.540 | 0.088 | 0.088 | 0.119 | 0.119 | |||||||||
3/8 | 0.675 | 0.091 | 0.091 | 0.126 | 0.126 | |||||||||
1/2 | 0.840 | 0.109 | 0.109 | 0.147 | 0.147 | 0.187 | 0.294 | |||||||
3/4 | 1.050 | 0.113 | 0.113 | 0.154 | 0.154 | 0.219 | 0.308 | |||||||
1 | 1.315 | 0.133 | 0.133 | 0.179 | 0.179 | 0.250 | 0.358 | |||||||
1 1/4 | 1.660 | 0.140 | 0.140 | 0.191 | 0.191 | 0.250 | 0.382 | |||||||
1 1/2 | 1.900 | 0.145 | 0.145 | 0.200 | 0.200 | 0.281 | 0.400 | |||||||
2 | 2.375 | 0.154 | 0.154 | 0.218 | 0.218 | 0.344 | 0.436 | |||||||
2 1/2 | 2.875 | 0.203 | 0.203 | 0.276 | 0.276 | 0.375 | 0.552 | |||||||
3 | 3.500 | 0.216 | 0.216 | 0.300 | 0.300 | 0.438 | 0.600 | |||||||
3 1/2 | 4.000 | 0.226 | 0.226 | 0.318 | 0.318 | |||||||||
4 | 4.500 | 0.237 | 0.237 | 0.337 | 0.337 | 0.438 | 0.531 | 0.674 | ||||||
5 | 5.563 | 0.258 | 0.258 | 0.375 | 0.375 | 0.500 | 0.625 | 0.750 | ||||||
6 | 6.625 | 0.280 | 0.280 | 0.432 | 0.432 | 0.562 | 0.719 | 0.864 | ||||||
8 | 8.625 | 0.250 | 0.277 | 0.322 | 0.322 | 0.406 | 0.500 | 0.500 | 0.594 | 0.719 | 0.812 | 0.906 | 0.875 | |
10 | 10.750 | 0.250 | 0.307 | 0.365 | 0.365 | 0.500 | 0.500 | 0.594 | 0.719 | 0.844 | 1.000 | 1.125 | 1.000 | |
12 | 12.750 | 0.250 | 0.330 | 0.375 | 0.406 | 0.562 | 0.500 | 0.688 | 0.844 | 1.000 | 1.125 | 1.312 | 1.000 | |
14 | 14.000 | 0.250 | 0.312 | 0.375 | 0.375 | 0.438 | 0.594 | 0.500 | 0.750 | 0.938 | 1.094 | 1.250 | 1.406 | |
16 | 16.000 | 0.250 | 0.312 | 0.375 | 0.375 | 0.500 | 0.656 | 0.500 | 0.844 | 1.031 | 1.219 | 1.438 | 1.594 | |
18 | 18.000 | 0.250 | 0.312 | 0.438 | 0.375 | 0.562 | 0.750 | 0.500 | 0.938 | 1.156 | 1.375 | 1.562 | 1.781 | |
20 | 20.000 | 0.250 | 0.375 | 0.500 | 0.375 | 0.594 | 0.812 | 0.500 | 1.031 | 1.281 | 1.500 | 1.750 | 1.969 | |
22 | 22.000 | 0.250 | 0.375 | 0.500 | 0.375 | 0.875 | 0.500 | 1.125 | 1.375 | 1.625 | 1.875 | 2.125 | ||
24 | 24.000 | 0.250 | 0.375 | 0.562 | 0.375 | 0.688 | 0.969 | 0.500 | 1.219 | 1.531 | 1.812 | 2.062 | 2.344 | |
30 | 30.000 | 0.312 | 0.500 | 0.625 | 0.375 | 0.500 | ||||||||
32 | 32.000 | 0.312 | 0.500 | 0.625 | 0.375 | 0.688 | ||||||||
34 | 34.000 | 0.312 | 0.500 | 0.625 | 0.375 | 0.688 | ||||||||
36 | 36.000 | 0.312 | 0.500 | 0.625 | 0.375 | 0.750 | ||||||||
42 | 42.000 | 0.500 | 0.625 | 0.375 | 0.750 |
Outside Diameter Tolerance of Fire Tube Boiler
Standard | Hot finished seamless tube | Cold flnished seamless tube | ||
Out diameter (mm) |
Tolerance | Out diameter (mm) |
Tolerance | |
---|---|---|---|---|
EN10216-1 EN10216-2 DIN17175 |
≤100 | +/-0.75% (min.+/-0.5mm) |
All | +/-0.5% (min. +/-0.30mm) |
>100 | +/-0.90% | |||
GB/T 3087 | ≤460 | +/-0.75% (min.+/-0.5mm) |
10-30 | +/-0.40mm |
>30-50 | +/-0.45mm | |||
>50 | +/-1.0% | |||
GB/T 5310 GB/T 9948 GB/T 6479 |
<57 | +/-0.40mm | ≤30 | +/-0.20mm |
57-325 | +/-0.75% | >30-50 | +/-0.30mm | |
>325-460 | +1%,-2mm | >50 | +/-0.8% | |
ASME SA-179M ASME SA-192M ASME SA-209M ASME SA-210M ASME SA-213M JIS G 3461 JIS G 3461 |
≤101.6 | +0.4, -0.8mm | <25.4 | +/-0.10mm |
>25.4-38.1 | +/-0.15mm | |||
>38.1-50.8 | +/-0.20mm | |||
101.6-190.5 | +0.4, -1.2mm | >50.8-63.5 | +/-0.25mm | |
>63.5-76.2 | +/-0.30mm | |||
>76.2 | +/-0.38mm | |||
ASME SA106 ASME SA335 |
≤48.3 | +/-0.40mm | ≤48.3 | +/-0.40mm |
48.3-114.3 | +/-0.79mm | |||
114.4-219.1 | +1.59, -0.79mm | |||
219.2-323.9 | +2.38, -0.79mm | >48.3 | +/-0.79mm | |
>324 | +/-1.0% |
Wall Thickness Tolerance of Boiler Tubing
Standard | Hot finished seamless tube | Cold flnished seamless tube | ||||
Out diameter OD(mm) |
Wall thickness T(mm) |
Tolerance | Out diameter (mm) |
Wall Thickness T(mm) |
Tolerance | |
---|---|---|---|---|---|---|
DIN17175 | ≤130 | S≤2Sn | +15%, -10% | — | All | +/-10% (min. +/-0.2mm) |
2Sn<S≤4Sn | +12.5%, -10% | |||||
S>4Sn | +-/9% | |||||
>130 | S≤0.05da | +17.5%, -12.5% | ||||
0.05da<S≤0.11da | +/-12.5% | |||||
S>0.11da | +/-10% | |||||
EN 10216-1 EN 10216-2 |
≤219.1 | – | +/-12.5% (min.+/-0.4mm) |
|||
— | T/D≤0.025 | +/-20% | ||||
0.025<T/D≤0.050 | +/-15% | |||||
0.05<T/D≤0.10 | +/-12.5% | |||||
0.1<T/D | +/-10% | |||||
GB/T 3087 | — | ≤20 | +15%,-12.5% (min.+0.45, -0.35mm) |
— | 1.0-3.0 | +15%, -10% |
>20 | +/-12.5% | — | >3 | +12.5%, -10% | ||
GB/T 5310 GB/T 9948 GB/T 6479 |
— | <4.0 | +15%,-10% (min.+0.48, -0.32mm) |
— | 2-3 | +12%,-10% |
4-20 | +12.5%,-10% | >3 | +/-10% | |||
>20 | +/-10% | |||||
ASME SA-179M ASME SA-192M ASME SA-209M ASME SA-210M ASME SA-231M JIS G 3461 JIS G 3462 |
— | 2.41-3.8 | +35%, -0% | ≤38.1 | — | +20%,-0% |
3.8-4.6 | +33%,-0% | >38.1 | — | 22%,-0% | ||
>4.6 | +28%,-0% | — | — | — | ||
ASME SA-106 ASME SA-335 |
— | All | +/12.5% | All | +/-10% |
Carbon Steel Boiler Tube Grade
- Cr5Mo (STFA25 STPA25 STBA25 T5 P5)
- 15CrMo (STFA22 STPA22 STAB22 T12 P12)
- 1.25Cr0.5Mo (STFA23 STPA23 STBA 23 T11 P11)
- Cr9Mo (STFA26 STPA26 STBA26 T9 P9)
- 12Cr1MoV
- 12Cr2Mo (10CrMo910 T22 P22)
- 10Cr9Mo1VNb T91 (P91)
- 12Cr2MoWVTiB (R102)
Boiler Tubes Coating Standard
Boiler Tubes Coating Type | Boiler Tubes Coating Layer | Boiler Tubes Coating thickness |
---|---|---|
Three layers polyethylene | Inside layer: epoxy (Green) | 2.0 -4.5mm |
Mid layer: adhensive (White) | ||
Outsidelayer:polyethylene (Black) | ||
Two layers polyethylene | Inside layer: adhensive | 2.0 -4.5mm |
Outside layer: polythene | ||
Epoxy | Epoxy | 200-400um |
Two layers epoxy | Inside layer: expoxy (Green) | 400-800um |
Outside layer:intensity epoxy (sage green) | ||
Three layers polyethylene | Inside layer: expoxy (Green) | 2.5 -3mm |
Mid layer: adhensive (White) | ||
Outside layer: polypropylene (White) |
Types of Boiler Pipes & Tubes
1 ¼ chrome A213 / SA213 Boiler Tubes |
2 ¼ chrome A213 / SA213 Boiler Tubes |
5 chrome A213 / SA213 Boiler Tubes |
9 chrome A213 / SA213 Boiler Tubes |
T91 chrome A213 / SA213 Boiler Tubes |
T92 chrome A213 / SA213 Boiler Tubes |
Superheater tubes |
Stainless steel boiler tube |
Fire tube steam boiler |
Water tube boiler |
Economiser tubes |
Straight tube boiler |
IBR boiler tube |
Bent tube boiler |
Triangle tube boiler |
Boiler tubing |
Seamless boiler tubes |
Cold drawn boiler tube |
High pressure boiler tube |
Large diameter boiler tube |
Small bore boiler tubing |
Boiler superheater tube material |
Boiler Tubes & Pipes Applications
- Steam Boilers
- Fossil Fuel Plants
- Heat Exchangers
- Electric Power Plants
- Cogeneration Facilities
- Air Preheater Unit
- Waste Heat Plants
- Power Generation
- Economiser