Bent tube is carried
out by cold working method and is being done to the necessary bend radius as
per client drawings. U-bend tube/pipe can be manufactured from an extensive
range of pipe materials that contain high and low yield stainless steels, alloy
steels, carbon steels,Monel , Inconel,
hastelloy,duplex , super duplex,titanium,copper alloy and Cr-Ni alloys. Usually U-bends manufactured
from seamless tube, can further be customized in terms of thicknesses and sizes
as per the specific requirements of our clients. They are easy for further
assemble tube bundles.
U bend Tubes pipe in diverse industries for a range of applications such as in
Boiler, Condensers,Evaporators,tube bundles for Heat Exchangers,
Coolers/Inter-coolers, Chiller, and so on. These are as well being used in
dissimilar industries such as in Fertilizer Plants, Sugar Industry, Steel
Plants,Oil & Gas plants, Chemical & Petrochemical plants, Refineries,
Power plants, Renewable energy plants etc.
grades have high corrosion resistance, excellent biocompatibility and good
formability. They are classified based on their level of non-titanium elements
and the resultant differences in mechanical properties. GR1 /GR2 have the
lowest strength and best ductility of the four primary ASTM grades due to its
higher level of purity. While grade 5 and gr9 are called titanium alloy, which
are harder than gr1 and gr2 titanium. Titanium alloy U tube bundles, Titanium tube for Heat
Exchangers,Titanium Condensers tube,Titanium Evaporators tube,Titanium for Coolers/Inter-coolers.
· Low Density and High Strength
· Excellent Corrosion Resistance
· Good resistance to effect of heat
· Excellent Bearing to cryogenic property
· Nonmagnetic and Non-toxic
· Good thermal properties
· Low Modulus of Elasticity
B338/SB861, ASTM SB338/SB861, EN10204
straight pipe - bending before 100% flaw detection - reliable
bending machine and precision bending mould - bending after the U-shaped part
of the electric heating stress relief annealing - bending after 100% water
U TUBE TOLERANCES
Dimensional tolerances U tubes acc. to TEMA R.C.B.
1) Length of straight part -0/+5 mm
Flattening (also called “ovality”) at the bend shall not exceed 10% of the
nominal tube outside diameter.
Wall thickness in bending part acc. to TEMA R.C.B 2.31
2) Minimum tube wall thickness in the bend part (T min)T(min) ≥ (SW × (2×R +
D))/( 2× (R+D)
where: SW is smallest wall thickness
D Nominal outside diameter
1. for R 100 mm +/-
2. for R ≥ 100 mm
+/- 5 mm
4)Straightness tolerance max. 1,5 mm per 1 m
plain, vertically cut to the tube axis
Packed in ply wooden box wrapped in
plastic, and suitably protected for sea-worthily delivery or as requested.
6.35mm - 76.2 mm O.D
0.3 to 10mm
As per Customer
requirement, Maximum upto 18Meter Long.
ASTM B338, ASTM B861, ASTM B862, EN10204