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Help CenterS31803 ASME SA789 Duplex Stainless-steel Tubes 2205duplex Phase Stainless Tube
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UNS S31803 (ASTM A789 /ASME SA789) Duplex Stainless-steel Tubes
ASTM A789 / A 789M, ASME SA789 S31803 Duplex Stainless Tubing is for Boilers, Superheaters and Heat Exchangers.
ASTM A789 /A789M Stainless tubes shall be made by the seamless or welded process with no filler metal added.
Standard: ASTM A789/A789M, ASME SA789
Description Name:
ASTM A789 Duplex steel S31803 tube, ASTM A789 Duplex steel S32205 tube, ASTM A789 Duplex steel S31500 tube, ASTM A789 Duplex steel S32550 tube, ASTM A789 Duplex steel S32750 tube, ASTM A789 Duplex steel S32520 tube, Duplex stainless-steel tube S31803, Duplex stainless-steel tube S32205, Duplex stainless-steel tube S31500, Duplex stainless-steel tube S32550, Duplex stainless-steel tube S32750, Duplex stainless-steel tube S32520
Seamless pipe & Tube Size: 1/2” to 8”
Welded pipe & Tube Size: 6” to 24”
Outer Diameter: 6.0-630mm
Schedules: 10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH
Wall Thickness: 1mm to 50mm
Flange Test (for welded tubes)
—One test shall be made on specimens from one end of one tube from each lot of finished tubes.
Flaring Test
—One test shall be made on specimens from one end of one tube from each lot of finished tubes. The minimum expansion of the inside diameter shall be 10%
Reverse Flattening Test
—For welded tubes, one reverse flattening test shall be made on a specimen from each 1500Ft or 450m of finished tubing.
Hydrostatic or Nondestructive Testing
—Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test, the type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.
—The hydrostatic test shall be in accordance with specification A 450/A 450M, except that in the calculation of the hydrostatic test pressure 64000(441.2) shall be substituted for 32000(220.6).
Markings
Marking prescribed in specification A450/A 450M, The marking shall indicate whether the tubing is seamless or welded.
Note:
Mill test certificates will be issued according to EN10204.3
All tubes shall be supplied as per applicable ASTM A789 /A789M Specification.
ASTM A789 S31803 PHOTOS
ASTM A789M UNS 31803 duplex stainless tubes
Packing and Marking
Packed in bundles or ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.
Packing photos:
ASTM A789M UNS 31803 duplex stainless tubes packages
ASTM A789M UNS 31803 duplex stainless tubes wooden cases
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