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Stainless steel boiler tube
What is seamless steel boiler tubes?
The boiler tubes are generally seamless and made of alloy or carbon steel. They are capable of maintaining high performances at elevated temperature conditions. The Seamless Steel Boiler Tubes are made in the same way as other ss seamless tubes, but with strict requirements of the given steel grades. They are made according to their working temperatures. The tubes are available in two types: one for general boiler requirements and the other for high pressure boiler requirements.
The general Stainless Steel 304 Boiler Tubing is used as a boiling water tube, smoke tube, arch brick tube, etc. Whereas, the high pressure ones are used as reheater tubes, superheater tubes, gas pipe, etc. They are made using the same manufacturing process which includes fine drawing, surface brightning, hot rolling, cold drawing and finally heat expansion. It is the heat treatment which determines the exact mechanical properties. The 316 Stainless Steel Boiler Tubes are widely found in industries like power generation, electric power plants, industrial processing plants, etc.
SS seamless boiler tubes manufacturer in India
What is solution anneal boiler tubes?
To manufacture Solution Anneal Boiler Tubes a heat treatment process is conducted. This alters the metallurgical structure of the material and changes the mechanical and electrical properties of the Boiler Tube. Through solution annealing, any precipitate present on the SA213 TP304 Economiser Tubes material can be dissolved and the temperature transforms it into a single form structure.
Supplier of Stainless steel 304 boiler tubing and 316 stainless steel boiler tubes in Gujarat
Stainless steel boiler tube
SS seamless boiler tubes
Stainless steel 304 boiler tubing
Which tests required to detect leaks in SS boiler tubes?
Detecting leakages on the Stainless Steel Boiler Tube is very crucial to ensure its optimal performance. Visual inspections and pressure tests can be very effective for detecting all types of leakages. You can also go for underwater bubble test, tracer gas detection test, etc., to find out the leaks efficiently. There are also online monitoring services for early leak detection. It helps to identify and locate any SS Seamless Boiler Tubes leakages in the power plant equipment. Thus, different tracers and tracing techniques are used for proper and easy leakage detection.
We Export seamless stainless steel boiler tubes and SA213 TP304 economiser tubes in Size 1/4" – 12" as per ASTM A312
Table of Contents
- Seamless boiler tubes specification
- Types of Stainless steel boiler tube
- SS seamless boiler tubes sizes
- Pressure rating of Stainless steel 304 boiler tubing
- Seamless steel boiler tubes temperature range
- Chemical compostion of 316 stainless steel boiler tubes
- Solution anneal boiler tubes mechanical properties
- SA213 TP304 economiser tubes equivalent
- Gauge chart of SA213 TP304L fire boiler tube
- SA213 TP316 boiler riser tubes length
Seamless boiler tubes specification
| Standard | Technique | Length |
|---|---|---|
| ASTM A249, A312, A269, A554, A270 | Cold drawn, Hot rolled, Cold rolled, Extrusion Tube | 6m |
| Outer Diameter | End | Grade |
| 1/4" – 12" (inch) | Plain end, Bevelled end | 301, 304, 304L, 304LN, 304N , 305, 309, 309S, 310, 310S, 316, 316L. 316NL, 316N, 316Ti, 317, 317L, 321, 321H, 347, 347H, 904L |
SA213 TP304L fire boiler tube and SA213 TP316 boiler riser tubes used for high temperature application
Types of Stainless steel boiler tube
Seamless steel boiler tubes
316 stainless steel boiler tubes
Solution anneal boiler tubes
SA213 TP304 economiser tubes
SA213 TP304L fire boiler tube
SA213 TP316 boiler riser tubes
Supplying Large diameter SA213 TP304H boiler tube and SA213 TP316L tube boiler straight with Mill Test Report
SS seamless boiler tubes sizes
| Size (SA213-TP304H) | Length |
|---|---|
| 2" x 0.150" | 21' - 0" |
| 1.5" x 0.135" | 19' - 10" |
| 1.5" x 0.148" | 18' - 3" |
| 1.5" x 0.148" | 25' - 0" |
| 1.5" x 0.350" | 14' - 3" |
| 1.75" x 0.120" | 16' - 5" |
| 1.75" x 0.120" | 17' - 0" |
| 1.75" x 0.120" | 19' - 0" |
| 1.75" x 0.163" | 24' - 0" |
| 1.75" x 0.227" | 14' - 7" |
| 1.75" x 0.227" | 20' - 0" |
| 1.75" x 0.320" | 10' - 8" |
| 1.875" x 0.165" | 23' - 1" |
| 2" x 0.150" | 16' - 10" |
| 2" x 0.165" | 28' - 11" |
| 2" x 0.165" | 31' - 5" |
| 2" x 0.165" | 37' - 1" |
| 2" x 0.165" | 37' - 1" |
| 2" x 0.165" | 38' - 0" |
| 2" x 0.165" | 38' - 0" |
| 2" x 0.165" | 39' - 0" |
| 2" x 0.211" | 23' - 4" |
| 2" x 0.300" | 21' - 10" |
| 2" x 0.300" | 23' - 2" |
| 2" x 0.332" | 21' - 0" |
| 2" x 0.360" | 23' - 11" |
| 2.125" x 0.165" | 25' - 0" |
| 2.125" x 0.200" | 17' - 7" |
| 2.125" x 0.285" | 25' - 0" |
| 2.125" x 0.285" | 25' - 0" |
| 2.25" x 0.133" | 38' - 0" |
| 2.25" x 0.203" | 25' - 0" |
| 2.5" x 0.165" | 13' - 5" |
| 2.5" x 0.165" | 17' - 9" |
| 2.5" x 0.200" | 25' - 0" |
| 2.5" x 0.220" | 27' - 0" |
| 2.5" x 0.238" | 17' - 9" |
| 2.5" x 0.280" | 25' - 0" |
| 2.5" x 0.310" | 21' - 0" |
| 2.5" x 0.310" | 25' - 0" |
| 2.5" x 0.310" | 25' - 0" |
| 2.75" x 0.260" | 26' - 0" |
| 2.75" x 0.260" | 25' - 7" |
| 2.75" x 0.315" | 16' - 11" |
| 2.75" x 0.315" | 19' - 7" |
| 2.75" x 0.345" | 22' - 6" |
| 3" x 0.300" | 22' - 0" |
Pressure rating of Stainless steel 304 boiler tubing
| SIZES | AVE. WALL INCHES | MIN YIELD STRENGTH (PSI) | THEORETICAL YIELD POINT ** (PSI) | MIN TENSILE STRENGTH (PSI) | THEORETICAL BURST PRESSURE * (PSI) | WORKING PRESSURE (PSI) 25% OF BURST | COLLAPSE PRESSURE *** (PSI) |
|---|---|---|---|---|---|---|---|
| 0.250 | 0.020 | 30,000 | 5,714 | 75,000 | 14,286 | 3,571 | 4,416 |
| 0.250 | 0.028 | 30,000 | 8,660 | 75,000 | 21,649 | 5,412 | 5,967 |
| 0.250 | 0.035 | 30,000 | 11,667 | 75,000 | 29,167 | 7,292 | 7,224 |
| 0.250 | 0.049 | 30,000 | 19,342 | 75,000 | 48,355 | 12,089 | 9,455 |
| 0.250 | 0.065 | 30,000 | 32,500 | 75,000 | 81,250 | 20,313 | 11,544 |
| 0.375 | 0.020 | 30,000 | 3,582 | 75,000 | 8,955 | 2,239 | 3,029 |
| 0.375 | 0.028 | 30,000 | 5,266 | 75,000 | 13,166 | 3,292 | 4,145 |
| 0.375 | 0.035 | 30,000 | 6,885 | 75,000 | 17,213 | 4,303 | 5,077 |
| 0.375 | 0.049 | 30,000 | 10,614 | 75,000 | 26,534 | 6,634 | 6,816 |
| 0.375 | 0.065 | 30,000 | 15,918 | 75,000 | 39,796 | 9,949 | 8,597 |
| 0.500 | 0.020 | 30,000 | 2,609 | 75,000 | 6,522 | 1,630 | 2,304 |
| 0.500 | 0.028 | 30,000 | 3,784 | 75,000 | 9,459 | 2,365 | 3,172 |
| 0.500 | 0.035 | 30,000 | 4,884 | 75,000 | 12,209 | 3,052 | 3,906 |
| 0.500 | 0.049 | 30,000 | 7,313 | 75,000 | 18,284 | 4,571 | 5,304 |
| 0.500 | 0.065 | 30,000 | 10,541 | 75,000 | 26,351 | 6,588 | 6,786 |
| 0.500 | 0.083 | 30,000 | 14,910 | 75,000 | 37,275 | 9,319 | 8,307 |
| 0.625 | 0.020 | 30,000 | 2,051 | 75,000 | 5,128 | 1,282 | 1,859 |
| 0.625 | 0.028 | 30,000 | 2,953 | 75,000 | 7,381 | 1,845 | 2,568 |
| 0.625 | 0.035 | 30,000 | 3,784 | 75,000 | 9,459 | 2,365 | 3,172 |
| 0.625 | 0.049 | 30,000 | 5,579 | 75,000 | 13,947 | 3,487 | 4,335 |
| 0.625 | 0.065 | 30,000 | 7,879 | 75,000 | 19,697 | 4,924 | 5,591 |
| 0.625 | 0.083 | 30,000 | 10,850 | 75,000 | 27,124 | 6,781 | 6,910 |
| 0.625 | 0.095 | 30,000 | 13,103 | 75,000 | 32,759 | 8,190 | 7,734 |
| 0.625 | 0.109 | 30,000 | 16,069 | 75,000 | 40,172 | 10,043 | 8,639 |
| 0.750 | 0.028 | 30,000 | 2,421 | 75,000 | 6,052 | 1,513 | 2,156 |
| 0.750 | 0.035 | 30,000 | 3,088 | 75,000 | 7,721 | 1,930 | 2,669 |
| 0.750 | 0.049 | 30,000 | 4,509 | 75,000 | 11,273 | 2,818 | 3,664 |
| 0.750 | 0.065 | 30,000 | 6,290 | 75,000 | 15,726 | 3,931 | 4,749 |
| 0.750 | 0.083 | 30,000 | 8,527 | 75,000 | 21,318 | 5,330 | 5,905 |
| 0.750 | 0.095 | 30,000 | 10,179 | 75,000 | 25,446 | 6,362 | 6,637 |
| 0.750 | 0.109 | 30,000 | 12,293 | 75,000 | 30,733 | 7,683 | 7,453 |
| 0.750 | 0.120 | 30,000 | 14,118 | 75,000 | 35,294 | 8,824 | 8,064 |
| 0.875 | 0.020 | 30,000 | 1,437 | 75,000 | 3,593 | 898 | 1,340 |
| 0.875 | 0.028 | 30,000 | 2,051 | 75,000 | 5,128 | 1,282 | 1,859 |
| 0.875 | 0.035 | 30,000 | 2,609 | 75,000 | 6,522 | 1,630 | 2,304 |
| 0.049 | 30,000 | 75,000 | 3,172 | 9,459 | 2,365 | 3,784 | |
| 0.875 | 0.065 | 30,000 | 5,235 | 75,000 | 13,087 | 3,272 | 4,126 |
| 0.875 | 0.083 | 30,000 | 7,024 | 75,000 | 17,560 | 4,390 | 5,152 |
| 0.875 | 0.095 | 30,000 | 8,321 | 75,000 | 20,803 | 5,201 | 5,807 |
| 0.875 | 0.109 | 30,000 | 9,954 | 75,000 | 24,886 | 6,221 | 6,543 |
| 0.875 | 0.120 | 30,000 | 11,339 | 75,000 | 28,346 | 7,087 | 7,100 |
| 1.000 | 0.028 | 30,000 | 1,780 | 75,000 | 4,449 | 1,112 | 1,633 |
| 1.000 | 0.035 | 30,000 | 2,258 | 75,000 | 5,645 | 1,411 | 2,027 |
| 1.000 | 0.049 | 30,000 | 3,259 | 75,000 | 8,149 | 2,037 | 2,796 |
| 1.000 | 0.065 | 30,000 | 4,483 | 75,000 | 11,207 | 2,802 | 3,647 |
| 1.000 | 0.083 | 30,000 | 5,971 | 75,000 | 14,928 | 3,732 | 4,567 |
| 1.000 | 0.095 | 30,000 | 7,037 | 75,000 | 17,593 | 4,398 | 5,159 |
| 1.000 | 0.109 | 30,000 | 8,363 | 75,000 | 20,908 | 5,227 | 5,827 |
| 1.000 | 0.120 | 30,000 | 9,474 | 75,000 | 23,684 | 5,921 | 6,336 |
| 1.000 | 0.134 | 30,000 | 10,984 | 75,000 | 27,459 | 6,865 | 6,963 |
| 1.250 | 0.035 | 30,000 | 1,780 | 75,000 | 4,449 | 1,112 | 1,633 |
| 1.250 | 0.049 | 30,000 | 2,552 | 75,000 | 6,380 | 1,595 | 2,260 |
Seamless steel boiler tubes temperature range
| ASTM/ASME A/SA213 | Working temperature (ºC [ºF]) |
| TP304H | 590 [1095] |
| TP347/347H | 610 [1130] |
| TP347HFG | 650 [1200] |
| TP310H | 590 [1095] |
| TP321H | 600 [1110] |
| TP316H | 610 [1130] |
| S30432 | 650 [1200] |
Chemical compostion of 316 stainless steel boiler tubes
| Elements | 304 UNS S30400 | 316 UNS S31600 | 304L UNS S30403 | 316L UNS S31603 |
|---|---|---|---|---|
| (Mo) Molybdenum | N/A | 2.0 - 3.0 | N/A | 2.0 - 3.0 |
| (Fe) Iron | Bal. | Bal. | Bal. | Bal. |
| (Ni) Nickel | 8.0 - 11.0 | 10.0 - 14.0 | 8.0 - 12.0 | 10.0 - 14.0 |
| (Cr) Chromium | 18.0 - 20.0 | 16.0 - 18.0 | 18.0 - 20.0 | 16.0 - 18.0 |
| (P) Phosphorus, max | 00.045 | 00.045 | 00.045 | 00.045 |
| (S) Sulfur, max | 00.03 | 00.03 | 00.03 | 00.03 |
| (C) Carbon, max | 00.08 | 00.08 | 00.035 | 00.035 |
| (Mn) Manganese, max | 2 | 2 | 2 | 2 |
| (Si) Silicon, max | 1 | 1 | 1 | 1 |
| (Cu) Copper | N/A | N/A | N/A | N/A |
| (N) Nitrogen | N/A | N/A | N/A | N/A |
Solution anneal boiler tubes mechanical properties
| Grade | Melting Point | Density | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
|---|---|---|---|---|---|
| 304/ 304L | 1400 °C (2550 °F) | 8.0 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 35 % |
| 304H | 1400 °C (2550 °F) | 8.0 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 40 % |
| 310 / 310S / 310H | 1402 °C (2555 °F) | 7.9 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 40 % |
| 306/ 316H | 1400 °C (2550 °F) | 8.0 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 35 % |
| 316L | 1399 °C (2550 °F) | 8.0 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 35 % |
| 317 | 1400 °C (2550 °F) | 7.9 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 35 % |
| 321 | 1457 °C (2650 °F) | 8.0 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 35 % |
| 347 | 1454 °C (2650 °F) | 8.0 g/cm3 | Psi 30000 , MPa 205 | Psi 75000 , MPa 515 | 35 % |
| 904L | 1350 °C (2460 °F) | 7.95 g/cm3 | Psi 32000 , MPa 220 | Psi 71000 , MPa 490 | 35 % |
SA213 TP304 economiser tubes equivalent
| STANDARD | UNS | WERKSTOFF NR. | GOST | JIS | BS | EN | AFNOR |
|---|---|---|---|---|---|---|---|
| 304 | S30400 | 1.4301 | 08Х18Н10 | SUS 304 | 304S31 | X5CrNi18-10 | Z7CN18‐09 |
| 304L | S30403 | 1.4306 / 1.4307 | 03Х18Н11 | SUS 304L | 3304S11 | X2CrNi18-9 / X2CrNi19-11 | Z3CN18‐10 |
| 304H | S30409 | 1.4301 | – | – | – | – | – |
| 310 | S31000 | 1.4841 | 20Ch25N20S2 | SUS 310 | 310S24 | X15CrNi25-20 | – |
| 310S | S31008 | 1.4845 | 20Ch23N18 | SUS 310S | 310S16 | X8CrNi25-21 | – |
| 310H | S31009 | – | – | – | – | – | – |
| 316 | S31600 | 1.4401 / 1.4436 | – | SUS 316 | 316S31 / 316S33 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | Z7CND17‐11‐02 |
| 316L | S31603 | 1.4404 / 1.4435 | 03Ch17N14M3 / 03Ch17N14M2 | SUS 316L | 316S11 / 316S13 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 | Z3CND17‐11‐02 / Z3CND18‐14‐03 |
| 316H | S31609 | 1.4401 | – | – | – | – | – |
| 316Ti | S31635 | 1.4571 | 08Ch17N13M2T | SUS 316Ti | 320S31 | X6CrNiMoTi17-12-2 | Z6CNDT17‐123 |
| 317 | S31700 | 1.4449 | – | SUS 317 | – | – | – |
| 317L | S31703 | 1.4438 | – | SUS 317L | – | X2CrNiMo18-15-4 | – |
| 321 | S32100 | 1.4541 | – | SUS 321 | – | X6CrNiTi18-10 | – |
| 321H | S32109 | 1.4878 | – | SUS 321H | – | X12CrNiTi18-9 | – |
| 347 | S34700 | 1.4550 | 08Ch18N12B | SUS 347 | – | X6CrNiNb18-10 | – |
| 347H | S34709 | 1.4961 | – | SUS 347H | – | X6CrNiNb18-12 | – |
| 904L | N08904 | 1.4539 | STS 317J5L | SUS 904L | 904S13 | X1NiCrMoCu25-20-5 | Z2 NCDU 25-20 |
Gauge chart of SA213 TP304L fire boiler tube
| GAUGE | TYPICAL VALUE (INCHES) | THICKNESS RANGE(INCHES) |
|---|---|---|
| 16 | 0.065 | 0.060 through 0.065 |
| 15 | 0.072 | 0.066 through 0.074 |
| 14 | 0.083 | 0.075 through 0.085 |
| 13 | 0.095 | 0.087 through 0.097 |
| 22 | 0.028 | 0.025 through 0.029 |
| 20 | 0.035 | 0.031 through 0.035 |
| 19 | 0.042 | 0.038 through 0.042 |
| 18 | 0.049 | 0.044 through 0.049 |
| 17 | 0.058 | 0.053 through 0.058 |
| 12 | 0.109 | 0.101 through 0.111 |
| 11 | 0.12 | 0.112 through 0.122 |
| 10 | 0.134 | 0.126 through 0.136 |
| 9 | 0.148 | 0.140 through 0.150 |
| 8 | 0.165 | 0.157 through 0.167 |
| 7 | 0.18 | 0.175 through 0.185 |
SA213 TP316 boiler riser tubes length
| Length [meter] | for sizes [milmeter] |
| 5 – 6 or 10 – 14 | Outer Dia => 60.3 and WT < 7.1 |
| 5 – 6 | Outer Dia< 60.3 |
| 5 – 6 | Outer Dia => 60.3 and WT => 7.1 |