U Bend Tubes

Stainless Steel U/U-bending/U-type tubes as per ASTM A213 with materials of 304, 304H, 321, 321H and .

Stress relieved and Hydrostatic testing after U-Bending are all available in our factory

Heat exchanger, Syngas Coolers, Power Plant, Power Boilers, Waste Heat Boilers

Seamless Pipes Grade:

Corrosion Resistant Austenitic
ASTM UNS EN DIN JIS GOST GB
304 S30400 X5CrNi18-10 1.4301 SUS304 06Cr19Ni10
S30403 X2CrNi19-11 1.4307 SUS304L 022Cr19Ni10
316 S31600 X5CrNiMo17-12-2 1.4401 SUS316 06Cr17Ni12Mo2
316L S31603 X2CrNiMo18-14-3 1.4404 SUS316L 03X17H14M3 022Cr17Ni12Mo2
321 S32100 X6CrNiTi18-10 1.4541 SUS321 06Cr18Ni11Ti

 

Heat Resistant Austenitic Stainless Steel Seamless Tube
ASTM UNS EN DIN JIS GOST GB
S31803 S31803 1.4462 022Cr22Ni5MoN
S32205 S32205 1.4462 022Cr22Ni5MoN

Seamless Tube Chemical Properties:

Grade C Si Mn P S Ni Cr Mo N
TP304 ≤ 0.08 ≤ 1.00 ≤ 2 ≤ 0.045 ≤ 0.030 8.0-11.0 18.0-20.0
TP304L ≤ 0.035 ≤ 1.00 ≤ 2 ≤ 0.045 ≤ 0.030 8.0-13.0 18.0-20.0
TP321 ≤ 0.080 ≤ 1.00 ≤ 2 ≤ 0.045 ≤ 0.030 9.0-12.0 17.0-19.0
TP316 ≤ 0.080 ≤ 1.00 ≤ 2 ≤ 0.045 ≤ 0.030 10.0-14.0 16.0-18.0 2.00-3.00
TP316L ≤ 0.035 ≤ 1.00 ≤ 2 ≤ 0.045 ≤ 0.030 10.0-14.0 16.0-18.0 2.00-3.00
S31803 ≤ 0.030 ≤ 1.00 ≤ 2 ≤ 0.030 ≤ 0.020 4.5-6.5 21.0-23.0 2.5-3.5 0.08-0.20
S32205 ≤ 0.030 ≤ 1.00 ≤ 2 ≤ 0.030 ≤ 0.020 4.5-6.5 22.0-23.0 3.0-3.5 0.14-0.20

Size:

OD: 12.7-38.1 mm

WT: 0.89-5.49 mm

R:1.5*OD-1500mm (Minimum bending radius for OD over 28mm after agreement)

Leg Length: Min 1,000 mm, Max 16,500 mm

Straight tube length: Max 35,000 mm

Heat treatment for radius up to 1500 mm

Packing:

Beveled/Polishing /plastic caps/in bundles/steel strips/wooden box/

accordance with customer requirements.

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