U BEND TUBES 347
U BEND TUBES 347 manufacturer, Suppliers And Exporter of Quality U Bend 347 Tubes.
ASME SA269, ASME SA213 A1016- TP347 / TP347H Stainless Steel U Bend Tube for Heat Exchanger
TP347H is an austenitic, niobium-settled stainless chromium-nickel steel for utilization at temperatures up to 850° C (1560° F).
TP347H has with a few impediments (nitric corrosive) the same resistance as the un-stabilized steel TP304, i.e. the material has great resistance in:
Natural acids at moderate temperatures, Salt arrangements, Sulfates, sulfides and sulphites, Acidic situations at moderate temperatures
TP347H is by and large utilized at temperatures over 500 ° C (930 ° F), notwithstanding, where wet erosion is not pertinent.
The adjustment with niobium gives TP347H great imperviousness to inter-granular consumption.
The steel may be delicate to setting and cleft erosion even in arrangements of moderately low chloride content.
U-Bend tubes are produced by specialized details asked for by clients:
|Standards||ASTM, DIN, En|
|Cross-Section Shape:||Round Connection|
|Outside diameter of the tube||6.0-406 mm (1/4'' 16'')|
|Maximum overall length||> 26 m.|
|Wall Thickness||0.5-35 mm (0.0196'' 1.378'')|
|Bending radius (min.)||1, 5 × tube diameter.|
|Bending radius (max.)||1200 mm.|
|Length||Max. 33000 mm|
1. ASTM A688/ASME SA688
2. ASTM A803/ASME SA803
3. ASTM A556/ASME SA556
U - Bend Tubes:
• TEMA RCB 2.31 Standard Of the Tubular Exchanger Exporter Association (9th Edition).
• ASTM A688/ASME SA688 Standard Specification for Welded Tubes of Austenitic Corrosion Resistant Steel Grade Designed For Feed Water Boilers.
• ASTM B163/ASME SA163 Standard Technical Requirements for Tubes of Nickel and Nickel Alloy For Condensers and Heat Exchangers.
Product Details :
|Name||Welded Stainless Steel U - Bend Tube|
|Standard||ASTM, GB, JIS, DIN, EN, AISI|
|Material Grade||TP304/TP304L /TP316/ TP316L /TP316Ti /TP347/ TP347H / TP321/ TP321H/TP310S/TP310H/TP904L|
|S31803, S32205 S32750 S32760 S32304 S32101|
|Outer Diameter||1.5*OD to 1500mm (When Ordering Tubes With Radius less or equal to 1.5*OD, It Is Necessary To Agree Precision Of Geometrics.)|
|Straight Tubes Maximum Length||(Before Bending): 35000 mm|
|Leg Length:||Min 1 Meter, Max. 16500 mm (For Max R=1500mm)|
|Heat Treatment||Stress Relieved After U - Bending (Bending Area Plus 300MM For Each Leg).|
|Hydrostatic Test After U Bending:||Maximum Test Pressure 600 Bar, Soaking 10 Sec. With Dematerialized Water. Compressed Air Cleaning After Hydro - Test.|
|Thickness||Seamless Pipe: 1mm - 8mm; SCH 5/5S/10S/40s|
|Tolerance||According to the Standard.|
|Manufacturing Process||Cold Drawn, Bright Annealed, Pickling|
|Test||UT, ET, HT, RT, Etc. and others according to the standard, or as the requests of the customers|
|Certificate||ISO 9001, etc.|
Condensers, evaporators, sea water processing, food processing and refrigeration industries, chemical and petrochemical industries, cooling tubes in ammonia converters, good resistance to hydrogen sulphide and inter-granular corrosion, furnace tubes in refineries
|Grade||C||Mn||Si||P||S||Cr||Mo||Ni||N||Co + Ta|
|347||0.08 max||2 max||0.75 max||0.045 max||0.03 max||17 – 19||3 – 4||9 – 13||-||10xC min