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

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.

Allied?Rainbow?Group?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.

The?U-Bend?Tube?Comply?With?The?Following?Standards:

1.????ASTM?A688/ASME?SA688

2.????ASTM?A803/ASME?SA803

3.????ASTM?A556/ASME?SA556

Steel?Grade:

Tube?Of?Other?Alloys?And?Steel?Grades?Can?Be?Produced?Upon?Agreement.

Technical?Requirements:

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.

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.

-Customer?Specifications.

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.