| Standard: | DIN 17456， DIN 17458， DIN 17459 ， EN10216-5 TC 1 & 2 ， EN10204-3.1 ， NACE 0175 | Material: | 1.4301， 1.4307 ，1.4401 ，1.4404， 1.4571 ，1.4438 |
|---|---|---|---|
| NDT: | ET， UT， HT | Package: | Ply-wooden Case /Iron Case/ Bundle With Plastic Cap |
| High Light: | heat recovery pipe， seamless stainless steel tube | ||
Stainless Steel Heat Exchanger Tube ASTM A213 TP304 304L TP317 TP321 With High Performance，Pickled Annealed ，Plain End
| Grade | Material number | C | Si | Mn | P | S | N | Cr | Mo | Ni | Ti | others |
| Ferritic or martensitic steels | ||||||||||||
| X2CrTi12 | 1.4512 | 0.030 | 1.00 | 1.00 | 0.040 | 0.015 | 10.50to12.50 | 6×(C+N)to0.65 | ||||
| X6CrAl13 | 1.4002 | 0.08 | 1.00 | 1.00 | 0.040 | 0.015 | 12.00to14.00 | 0.10to0.30Al | ||||
| X6Cr17 | 1.4016 | 0.08 | 1.00 | 1.00 | 0.040 | 0.015 | 16.00to18.00 | |||||
| X3CrTi17 | 1.4510 | 0.05 | 1.00 | 1.00 | 0.040 | 0.015 | 16.00to18.00 | 4×(C+N)+0.15 to 0.80 | ||||
| X12Cr13 | 1.4006 | 0.08 to 0.15 | 1.00 | 1.50 | 0.040 | 0.015 | 11.50to13.50 | 0.75 | ||||
| Austenitic steels | ||||||||||||
| X5CrNi18-10 | 1.4301 | 0.07 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 17.00to19.50 | 8.00to10.50 | |||
| X2CrNi19-11 | 1.4306 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 18.00to20.00 | 10.00to12.00 | |||
| X2CrNiN18-10 | 1.4311 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.12to0.22 | 17.00to19.50 | 8.50to11.50 | |||
| X6CrNiTi18-10 | 1.4541 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | 17.00to19.00 | 9.00to12.00 | 5×C to 0.70 | |||
| X6CrNiNb18-10 | 1.4550 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | 17.00to19.00 | 9.00to12.00 | 10×Cto1.00Nb | |||
| X5CrNiMo17-12-2 | 1.4401 | 0.07 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.50to18.50 | 2.00to2.50 | 10.00to13.00 | ||
| X2CrNiMo17-12-2 | 1.4404 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.50to18.50 | 2.00to2.50 | 10.00to13.00 | ||
| X6CrNiMoTi17-12-2 | 1.4571 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | 16.50to18.50 | 2.00to2.50 | 10.50to13.50 | 5×C to 0.70 | ||
| X2CrNiMoN17-13-3 | 1.4429 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.12to0.22 | 16.50to18.50 | 2.50to3.00 | 11.00to14.00 | ||
| X2CrNiMo18-14-3 | 1.4435 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 17.00to19.00 | 2.50to3.00 | 12.50to15.00 | ||
| X3CrNiMo17-13-3 | 1.4436 | 0.05 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.50to18.50 | 2.50to3.00 | 10.50to13.00 | ||
| X2CrNiMoN17-13-5 | 1.4439 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.12to0.22 | 16.50to18.50 | 4.00to5.00 | 12.50to14.50 | ||
| ube 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 |
| Form of Tube: Straight & U-bend & Finned & Coiled | 　 | 　 | 　 | 　 | 　 | 　 | 　 | 　 | 　 |
| Stainless Steel Tube: A/SA213， A/SA249， A/SA268， A/SA269， A/SA789， EN10216-5， A/SA688， B/SB163， JIS-G3463， GOST9941-81. | 　 | 　 | 　 | 　 | 　 | 　 | 　 | 　 | 　 |
| Carbon &Alloy Steel Tube: A/SA178， A/SA179， A/SA192，A/SA209， A/SA210， A/SA213 | 　 | 　 | 　 | 　 | 　 | 　 | 　 | 　 | 　 |
Specification:
ASME SA213/A213: Standard Specification for Seamless Ferritic and Austenitic Alloy-
Steel Boiler， Superheater and Stainless Steel Heat Exchanger Tubes.
ASTM A249 / A249M:Standard Specification for Welded Austenitic Steel Boiler， Superheater
Heat-Exchanger， and Condenser Tubes.
Other Standard:DIN 17456 ， DIN 17458， EN10216-5， JIS-G3463，…
Material Grade:
Size Range:
| Production | Outside Diameter | Wall Thickness |
| Heat Exchanger Tube | 6.00mm to 101.6mm | 0.5mm to 8mm |
Final Finishing
Solution Annealed & Pickled/Bright Annealed.
Type of Tubes:
U-bend & Straight.
Some of the quality tests carried out by us includes:
| Corrosion Test | Conducted only when specially requested by the client |
| Chemical Analysis | Test done as per required quality standards |
| Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
| Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms， which ensures trouble-free expansion， welding & use at customers end |
| Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
| Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage， and biggest pressure we can support 20Mpa/7s . |
| Air Under Pressure Test | To check any evidence of air leakage |
| Visual Inspection | After passivation， every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
Supplementary Testing : Apart from the above mentioned tests， we also carry out on the manufactured products supplementary testing. The tests conducted under this include:
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