
stainless steel boiler tubes
Stainless steel boiler tubes are all power devices which operate at high efficiencies and that requires quality steel material, to guarantee their safe and long term operation.
It is especially manufactured to resist high temperature and pressure. Boiler steel tubes are used in energy type equipment’s like boilers, steam pipeline, super heaters etc.
SS 304 Seamless Boiler Tubing is usually divided into low and medium pressure boiler seamless tube and high pressure boiler seamless tube and it is known for its high quality and endurance. It has properties like corrosion resistance, oxidation resistance, welding & forming, excellent toughness even down to cryogenic temperatures.
SS Seamless Boiler Tubes is the most used tubes because it eliminates the pressure stress on the walls due to uneven internal surfaces.
stainless steel boiler pipes operational temperature is lower than 450°C and the medium pressure boiler pipe mainly adopts cold drawing or hot rolling process process.
ASTM A213 Grade 316 superheater tubes has good oxidation resisitance in intermittent service to 870 °C and in continuous service to 925 °C.
If subsequent aqueous corrosion resistance is important than the continuous use of 316 superheater tubes in the 425-860 °C range is not recommended. It is one of the most critical boiler component of the modern day thermal power plant and it is subjected to very high metal temperature. Actually the capacity of the Superheater to work without failure at higher temperatures is what regulates the boilers capacity and by reducing steam consumption of the steam turbine it effects improvement in economy.
SS Exhaust Pipe is used to guide reaction exhaust gases away from a controlled combustion inside stove or engine. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes
stainless steel boiler tubes
SS 304 Seamless Boiler Tubing
SS Seamless Boiler Tubes
ASTM A213 Grade 316 superheater tubes
SS Exhaust Pipe
Stainless Steel Boiler Vent Pipe
Stainless Steel | 301 (Ni : 6%), 304/304L 304LN 316/316L 316Ti, 316LN 317/317L, 321, 310S, 347, 304H, 316H, 347H, 347HFG, 310H, UNS N8904, UNS 31254 etc. |
Technique | Cold drawn, Cold rolled, Hot rolled, Extrusion Tube |
Duplex/ Super Duplex | UNS S31803 / S32205 / S32750 / S31500 / S32304 |
Standards | ASTM A249, A269, A312, A554, A270 |
Test Certificate |
|
Size |
|
Pressure Boiler Tubing | ASTM A/ASME SA 789, ASTM A/ASME SA 213, GB 13296, JIS G3463, GB 5310, EN10216-2, EN 10216-5, RCCM M3303, DIN 17458 |
END | Plain End, Beveled End, Treaded |
Processing Service | Decoiling, Bending, Welding, Punching, Cutting, Moulding |
THICKNESS RANGE(INCHES) | TYPICAL VALUE (INCHES) |
---|---|
0.025 through 0.029 | 0.028 |
0.031 through 0.035 | 0.035 |
0.038 through 0.042 | 0.042 |
0.044 through 0.049 | 0.049 |
0.053 through 0.058 | 0.058 |
0.060 through 0.065 | 0.065 |
0.066 through 0.074 | 0.072 |
0.075 through 0.085 | 0.083 |
0.087 through 0.097 | 0.095 |
0.101 through 0.111 | 0.109 |
0.112 through 0.122 | 0.12 |
0.126 through 0.136 | 0.134 |
0.140 through 0.150 | 0.148 |
0.157 through 0.167 | 0.165 |
0.175 through 0.185 | 0.18 |
AVE. WALL INCHES | MIN YIELD STRENGTH (PSI) | MIN TENSILE STRENGTH (PSI) | THEORETICAL BURST PRESSURE * (PSI) | WORKING PRESSURE (PSI) 25% OF BURST | THEORETICAL YIELD POINT ** (PSI) | COLLAPSE PRESSURE *** (PSI) | |
---|---|---|---|---|---|---|---|
0.250 | 0.020 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
0.250 | 0.028 | 30,000 | 75,000 | 21,649 | 5,412 | 8,660 | 5,967 |
0.250 | 0.035 | 30,000 | 75,000 | 29,167 | 7,292 | 11,667 | 7,224 |
0.250 | 0.049 | 30,000 | 75,000 | 48,355 | 12,089 | 19,342 | 9,455 |
0.250 | 0.065 | 30,000 | 75,000 | 81,250 | 20,313 | 32,500 | 11,544 |
0.375 | 0.020 | 30,000 | 75,000 | 8,955 | 2,239 | 3,582 | 3,029 |
0.375 | 0.028 | 30,000 | 75,000 | 13,166 | 3,292 | 5,266 | 4,145 |
0.375 | 0.035 | 30,000 | 75,000 | 17,213 | 4,303 | 6,885 | 5,077 |
0.375 | 0.049 | 30,000 | 75,000 | 26,534 | 6,634 | 10,614 | 6,816 |
0.375 | 0.065 | 30,000 | 75,000 | 39,796 | 9,949 | 15,918 | 8,597 |
0.500 | 0.020 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304 |
0.500 | 0.028 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.500 | 0.035 | 30,000 | 75,000 | 12,209 | 3,052 | 4,884 | 3,906 |
0.500 | 0.049 | 30,000 | 75,000 | 18,284 | 4,571 | 7,313 | 5,304 |
0.500 | 0.065 | 30,000 | 75,000 | 26,351 | 6,588 | 10,541 | 6,786 |
0.500 | 0.083 | 30,000 | 75,000 | 37,275 | 9,319 | 14,910 | 8,307 |
0.625 | 0.020 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
0.625 | 0.028 | 30,000 | 75,000 | 7,381 | 1,845 | 2,953 | 2,568 |
0.625 | 0.035 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
0.625 | 0.049 | 30,000 | 75,000 | 13,947 | 3,487 | 5,579 | 4,335 |
0.625 | 0.065 | 30,000 | 75,000 | 19,697 | 4,924 | 7,879 | 5,591 |
0.625 | 0.083 | 30,000 | 75,000 | 27,124 | 6,781 | 10,850 | 6,910 |
0.625 | 0.095 | 30,000 | 75,000 | 32,759 | 8,190 | 13,103 | 7,734 |
0.625 | 0.109 | 30,000 | 75,000 | 40,172 | 10,043 | 16,069 | 8,639 |
0.750 | 0.028 | 30,000 | 75,000 | 6,052 | 1,513 | 2,421 | 2,156 |
0.750 | 0.035 | 30,000 | 75,000 | 7,721 | 1,930 | 3,088 | 2,669 |
0.750 | 0.049 | 30,000 | 75,000 | 11,273 | 2,818 | 4,509 | 3,664 |
0.750 | 0.065 | 30,000 | 75,000 | 15,726 | 3,931 | 6,290 | 4,749 |
0.750 | 0.083 | 30,000 | 75,000 | 21,318 | 5,330 | 8,527 | 5,905 |
0.750 | 0.095 | 30,000 | 75,000 | 25,446 | 6,362 | 10,179 | 6,637 |
0.750 | 0.109 | 30,000 | 75,000 | 30,733 | 7,683 | 12,293 | 7,453 |
0.750 | 0.120 | 30,000 | 75,000 | 35,294 | 8,824 | 14,118 | 8,064 |
0.875 | 0.020 | 30,000 | 75,000 | 3,593 | 898 | 1,437 | 1,340 |
0.875 | 0.028 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
0.875 | 0.035 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2,304 |
0.049 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 | |
0.875 | 0.065 | 30,000 | 75,000 | 13,087 | 3,272 | 5,235 | 4,126 |
0.875 | 0.083 | 30,000 | 75,000 | 17,560 | 4,390 | 7,024 | 5,152 |
0.875 | 0.095 | 30,000 | 75,000 | 20,803 | 5,201 | 8,321 | 5,807 |
0.875 | 0.109 | 30,000 | 75,000 | 24,886 | 6,221 | 9,954 | 6,543 |
0.875 | 0.120 | 30,000 | 75,000 | 28,346 | 7,087 | 11,339 | 7,100 |
1.000 | 0.028 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
1.000 | 0.035 | 30,000 | 75,000 | 5,645 | 1,411 | 2,258 | 2,027 |
1.000 | 0.049 | 30,000 | 75,000 | 8,149 | 2,037 | 3,259 | 2,796 |
1.000 | 0.065 | 30,000 | 75,000 | 11,207 | 2,802 | 4,483 | 3,647 |
1.000 | 0.083 | 30,000 | 75,000 | 14,928 | 3,732 | 5,971 | 4,567 |
1.000 | 0.095 | 30,000 | 75,000 | 17,593 | 4,398 | 7,037 | 5,159 |
1.000 | 0.109 | 30,000 | 75,000 | 20,908 | 5,227 | 8,363 | 5,827 |
1.000 | 0.120 | 30,000 | 75,000 | 23,684 | 5,921 | 9,474 | 6,336 |
1.000 | 0.134 | 30,000 | 75,000 | 27,459 | 6,865 | 10,984 | 6,963 |
1.250 | 0.035 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
1.250 | 0.049 | 30,000 | 75,000 | 6,380 | 1,595 | 2,552 | 2,260 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Ti | Fe | |
304 | min. | 18.0 | 8.0 | |||||||||
max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 | ||||
304L | min. | 18.0 | 8.0 | |||||||||
max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||||
304H | min. | 0.04 | 18.0 | 8.0 | ||||||||
max. | 0.010 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | |||||
SS 310 | 0.015 max | 2 max | 0.015 max | 0.020 max | 0.015 max | 24.00 26.00 | 0.10 max | 19.00 21.00 | 54.7 min | |||
SS 310S | 0.08 max | 2 max | 1.00 max | 0.045 max | 0.030 max | 24.00 26.00 | 0.75 max | 19.00 21.00 | 53.095 min | |||
SS 310H | 0.04 0.10 | 2 max | 1.00 max | 0.045 max | 0.030 max | 24.00 26.00 | 19.00 21.00 | 53.885 min | ||||
316 | min. | 16.0 | 2.03.0 | 10.0 | ||||||||
max. | 0.035 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0 | 14.0 | |||||
316L | min. | 16.0 | 2.03.0 | 10.0 | ||||||||
max. | 0.035 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0 | 14.0 | |||||
316TI | 0.08 max | 10.00 14.00 | 2.0 max | 0.045 max | 0.030 max | 16.00 18.00 | 0.75 max | 2.00 3.00 | ||||
317 | 0.08 max | 2 max | 1 max | 0.045 max | 0.030 max | 18.00 20.00 | 3.00 4.00 | 57.845 min | ||||
SS 317L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 20.00 | 3.00 4.00 | 11.00 15.00 | 57.89 min | |||
SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 19.00 | 9.00 12.00 | 0.10 max | 5(C+N) 0.70 max | |||
SS 321H | 0.04 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 19.00 | 9.00 12.00 | 0.10 max | 4(C+N) 0.70 max | |||
347/ 347H | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 20.00 | 9.0013.00 | |||||
410 | min. | 11.5 | ||||||||||
max. | 0.15 | 1.0 | 1.00 | 0.040 | 0.030 | 13.5 | 0.75 | |||||
446 | min. | 23.0 | 0.10 | |||||||||
max. | 0.2 | 1.5 | 0.75 | 0.040 | 0.030 | 30.0 | 0.50 | 0.25 | ||||
904L | min. | 19.0 | 4.00 | 23.00 | 0.10 | |||||||
max. | 0.20 | 2.00 | 1.00 | 0.045 | 0.035 | 23.0 | 5.00 | 28.00 | 0.25 |
Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
304/ 304L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
304H | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 40 % |
310 / 310S / 310H | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 40 % |
306/ 316H | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
316L | 8.0 g/cm3 | 1399 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
317 | 7.9 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
321 | 8.0 g/cm3 | 1457 °C (2650 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
347 | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
904L | 7.95 g/cm3 | 1350 °C (2460 °F) | Psi 71000 , MPa 490 | Psi 32000 , MPa 220 | 35 % |
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | 3304S11 | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
SS 304H | 1.4301 | S30409 | – | – | – | – | – |
SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | – | X15CrNi25-20 |
SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | – | X8CrNi25-21 |
SS 310H | – | S31009 | – | – | – | – | – |
SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
SS 316H | 1.4401 | S31609 | – | – | – | – | – |
SS 316Ti | 1.4571 | S31635 | SUS 316Ti | 320S31 | 08Ch17N13M2T | Z6CNDT17‐123 | X6CrNiMoTi17-12-2 |
SS 317 | 1.4449 | S31700 | SUS 317 | – | – | – | – |
SS 317L | 1.4438 | S31703 | SUS 317L | – | – | – | X2CrNiMo18-15-4 |
SS 321 | 1.4541 | S32100 | SUS 321 | – | – | – | X6CrNiTi18-10 |
SS 321H | 1.4878 | S32109 | SUS 321H | – | – | – | X12CrNiTi18-9 |
SS 347 | 1.4550 | S34700 | SUS 347 | – | 08Ch18N12B | – | X6CrNiNb18-10 |
SS 347H | 1.4961 | S34709 | SUS 347H | – | – | – | X6CrNiNb18-12 |
SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
GAUGE | THICKNESS RANGE(INCHES) | TYPICAL VALUE (INCHES) |
---|---|---|
22 | 0.025 through 0.029 | 0.028 |
20 | 0.031 through 0.035 | 0.035 |
19 | 0.038 through 0.042 | 0.042 |
18 | 0.044 through 0.049 | 0.049 |
17 | 0.053 through 0.058 | 0.058 |
16 | 0.060 through 0.065 | 0.065 |
15 | 0.066 through 0.074 | 0.072 |
14 | 0.075 through 0.085 | 0.083 |
13 | 0.087 through 0.097 | 0.095 |
12 | 0.101 through 0.111 | 0.109 |
11 | 0.112 through 0.122 | 0.12 |
10 | 0.126 through 0.136 | 0.134 |
9 | 0.140 through 0.150 | 0.148 |
8 | 0.157 through 0.167 | 0.165 |
7 | 0.175 through 0.185 | 0.18 |
SS 304 Seamless Boiler Tubing manufacturer