| Material Grade: | TP304， TP304L，TP316L， TP321， TP347H， TP317L ， TP310S | Standard: | ASME SA213， ASTM A213， ASTM A269 ， ASME SA269 |
|---|---|---|---|
| Certificate: | ABS，GL，DNV，NK， BV， LR， KR， NK， PED，AD2000，GOST | DNT: | ET，UT，PT，HT |
| Third Party Inspection: | BV，SGS， ASP， IEI， IBR， CCIC， MOODY | OD: | 12.7MM， 15.88MM ， 16MM ， 18MM， 19.05MM， 20MM， 25MM， 25.4MM， 31.75MM， 38.1MM， 44.45MM， 50.8MM， 57.15MM， 63.5MM， 76.2MM |
| WT: | 0.5MM TO 25MM | FORM: | Straight Tube ， U Bend Tube ， Snake Tube |
| High Light: | heat recovery pipe， seamless stainless steel tube | ||
ASTM A213 / ASTM A269 TP304L ， TP316L ， TP310S SMLS TUBE ， HEAT EXCHANGER APPLICATION ， 3/4" 16BWG 20FT 100% HT & ET
TONG CHUANG GROUP deal with Austenitic Stainless Steel， Nickel Alloy Steel(Hastelloy ， Monel， Inconel， Incoloy ) seamless and welded pipe and tube already more than 25 years， every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries， Like Italy， UK， Gernmany， USA， Canada， Chile， Colombia， Saudi Arabia，Korea， Singapore， Austrial， Poland， France ， ….And our group branch company and factory have been already approved by :ABS， DNV， GL， BV， PED 97/23/EC， AD2000-WO， GOST9941-81， CCS， TS， CNNC， ISO9001-2008， ISO 14001-2004.
Specification:
ASTM A213 / SA213: 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…
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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Application
Petroleum ， chemical enterprise
Exhaust purification device
Construction and ornament
solar industry ， military ， semiconductor etc
