| Material Grade: | TP304，TP304L，TP304H， TP304N， TP310S，TP316，TP316L，TP316Ti，TP316H， TP317，TP317L， TP321， TP321H，TP347， TP347H，904L… | Standard: | ASME SA213/SA213-17， ASME SA269/SA269M-17 ， EN10216-5， GOST9941-81， DIN17458 ， JIS G3463 |
|---|---|---|---|
| NDT: | Eddy Current Test ， Hydrostatic Test， Ultrasonic Test | TPI: | BV， SGS， IEI， APS， … |
| Surface: | Pickled ， Polished， Bright Finishing | Packing: | Ply Wooden Case |
| High Light: | seamless boiler tubes， Stainless Steels | ||
Stainless Steel Seamless Tube (Hot Finished)， 100% Eddy Current Test & Hydrostatic Test， Solid / Bright Annealed
TONG CHUANG GROUP deal with Stainless Steel and tube already more than 10 years， every year sell more than 80000 tons of Stainless Steel and tube. Our client already cover more than 45 countries. Our Stainless Steel and tube was width used in Heat Exchanger， Cooling ， Boiler， Mining， Energy， Petrochemical， Chemical Industry， Food plant， Paper plant， Gas and Fluid Industry etc.
Grade | Material | 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 | ||
| 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 | ||||
| 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， GOST 9940-81， GOST 9941-81， JIS-G3463，…
Material Grade:
American Standard | Austenitic Steel: TP304，TP304L，TP304H， TP304N， TP310S，TP316，TP316L，TP316Ti，TP316H， TP317，TP317L， TP321， TP321H，TP347， TP347H，904L… Duplex Steel : S32101，S32205，S31803，S32304，S32750， S32760 Others:TP405，TP409， TP410， TP430， TP439，… |
Europen Standard | 1.4301，1.4307，1.4948，1.4541，1.4878，1.4550，1.4401，1.4404，1.4571，1.4438， 1.4841，1.4845，1.4539，1.4162， 1.4462， 1.4362， 1.4410， 1.4501 |
GOST | 08Х17Т，08Х13，12Х13，12Х17，15Х25Т，04Х18Н10，08Х20Н14С2， 08Х18Н12Б，10Х17Н13М2Т，10Х23Н18，08Х18Н10，08Х18Н10Т， 08Х18Н12Т，08Х17Н15М3Т，12Х18Н10Т，12Х18Н12Т，12Х18Н9， 17Х18Н9， 08Х22Н6Т， 06ХН28МДТ |
Size Range:
Production | Outside Diameter | Wall Thickness |
Heat Exchanger Tube | 6.00mm to 152.4mm | 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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