Stainless Steel U-Bend Tube

Shelf time:
2023-12-30
OD Range:
According to customer requirment
WT Range:
According to customer requirment
Standard:
GB13296-2013,EN10216-5 ,GB3087-1999,GB5310-1995 ,ASME SA213
Description:
Stainless steel U-tubes are used for many purposes, such as:1. Tubular heat exchanger: Stainless steel U-tube can be used as the tube bundle of tubular heat exchanger, the advantage is that the tube bundle can be freely withdrawn and loaded, easy to clean.2. industrial heating: stainless steel

Product details description

U Shape Steel Bending Tube Stainless Steel Tube/Pipe Bending U Tube

 

Product description

Standard

ASTM A554,ASTM A312,SA 213,SA213/M

Material Grade

201,202,304,316,316L,430,409L,430,410,420J1,420J2

 

Main Material

 

a) 201 (Ni0.8%-1%)   

b) 202 (Ni: 3.0%-4.0%)
c) 304 (Ni: 8%  Cr: 18%)

d) 316 (Ni: 10%  Cr: 18%)

Size Range

OD:6.35mm- 273mm

Thickness

0.5-30mm

Length

6m or as customers' request

 

Tolerance

a) Outer Diameter:  +/- 0.1mm

b) Thickness: +/- 0.02mm

c) Length: +/- 5mm

Surface

180G, 320G Satin/Hairline

400G, 600G  Mirror finish

Application

handrail,railing, staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,Heat exchanger Feedwater Heater,etc

Test

Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT


Tensile Strength

≥535

≥520

≥520

≥520

Yield Strength

≥245

≥205

≥205

≥205

Extension

≥30%

≥30%

≥35%

≥35%

Hardness (HV)

<105

<100

<90

<90

Features :

  • 'U' bending is done by cold working process.

  • 'U' bending is done to the required radius as per customer drawings.

  • The bend portion and six inch leg is stress relieved by resistance heating.

  • Inert gas (Argon) is passed through it at the required flow rate to avoid oxidation in ID.

  • The radius is checked for its OD and wall thinning with the recommended specification.

  • The physical properties and micro-structure is checked at three different position.

  • Visual inspection for waviness and cracks is done with Dye Penetrant Test.

  • Each tube is then hydro tested at the recommended pressure to check for leakage.

  • Cotton ball test is done to check the ID cleanliness of the tube.

  • Thereafter pickled, dried, marked and packed.

U SHAPE.png

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