Stainless Steel U Bend Tube ASME SA249/A688, ASME SA213 TP304 / TP304L / TP304H / TP304N

Stainless Steel U Bend Tube ASME SA268, ASME SA213 TP304 / TP304L / TP304H / TP304N
Features :

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U-Bend?Tube?are?widely?used?in?Heat?Exchanger?Systems.?Heat-Exchanger?Equipment?on?the?basis?of?
Seamless?Stainless?U-Tubes?and?Welded?Stainless?U?bend?Tube?is?essential?in?strategically?important?and?
critical?felds---Nuclear?And?Petrochemical?Machine?Building.
YUHONG SPECIAL STEEL?Start?to?Produce?U?Bending?Tube?Since?2006,Up?to?now?already?supply?more?than?
30000?tons?Stainless?Steel?U?Bend?Tube?to?35?countries.
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The?U-Bend?Tube?Comply?With?The?Following?Standards:
1.????ASTM?A688/ASME?SA688
2.????ASTM?A803/ASME?SA803
3.????ASTM?A556/ASME?SA556
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Steel?Grade:
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Tube?Of?Other?Alloys?And?Steel?Grades?Can?Be?Produced?Upon?Agreement.
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Technical?Requirements:
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Straight?Tubes Standard Specification For?Bending:
ASME?SA?213;?ASME?SB?163;?ASME?A789,?ASME?SA268,?ASME?SA269,?etc.
Marking:?Before?Bending?By?Marking?Machine?All?Over?The?Tube?Length?(Bent?Section?After?Heat?
Treatment?Without?Marking)
Note:?Marking?is?also?possible?After?Bending?On?The?Straight?Parts?Of?U-Bending?Tube.
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U-Bend?Tubes:
-TEMA?RCB?2.31?Standard?Of?The?Tubular?Exchanger?Manufacturers?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?Techinical?Requirements?For?Tubes?Of?Nickel?And?Nickel?Alloy?For?
Condensers?And?Heat?Exchangers.
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-Customer?Specifications.

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Bending?Radius:?From?1.5*OD(Outside?Diameter)?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)
Note:?Other?Size?Are?Available?Upon?Agreement.
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.
Packaging:?In?Strong?Transport-Worthy?Pre-fumigated?wooden boxes?of?corresponding?dimensions?for?
each?tube?Length,?Radius,?Diameter,?According?To?PO requirements as?well?as wrapped?In polyethylene?
films?With soft plastic caps on both end?of?Tube.

Some of the quality tests carried out by us includes: