Overview
ASME SA789 UNS S31803 S32205 TUBE is a special type of stainless steel tube. This is mainly due to the difference in the chromium and nickel it contains from ordinary stainless steels, with approximately 50% each of ferrite and austenite. ASME SA789 UNS S31803 S32205 TUBE combines excellent toughness and weldability with high strength and resistance to chloride stress corrosion. The result is more robust and durable.
The ultra-high chromium and molybdenum content makes ASME SA789 UNS S31803 S32205 TUBE extremely resistant to uniform corrosion by organic acids such as formic and acetic acid. Super Double also offers excellent resistance to inorganic acids, especially those containing chlorides. In addition, it retains its lustre in air and does not rust. This is due to the presence of a certain amount of chromium alloying elements, which enables the steel surface to form a strong oxide film that is insoluble in certain media.
Specification
01. Commodity: SMLS SDSS Pipe (seamless super duplex stainless steel pipe)
02. Process method: cold finished.
03. Surface finish: solution annealing and passivated bright annealing.
04. Material: S31803, S31500, S32205/SAF2205, S32304/SAF2304, S32750/SAF2507, S32760.
05. Specification: ASME SA790, ASTM A790, A923.
06. Size
A) NPS: 1/8" to 6"
B) Schedule: 10S, 40/40S, 80/80S, 120, 160, XXS
C) O. D.: 6 mm to 168.3 mm
D) W. T.: 0.5 mm to 15 mm
07. Length: Max. 25 meters.
08. Applications: Pressure vessel, Chemical processing, transport and storage, Oil and Gas exploration and processing equipment, Marine and other high chloride environments, Pulp and paper digesters, liquor tanks and paper machines.
09. Packing: end caps, in bundles, wooden case or iron case.
10. Certificate: TS, ISO 9001, PED 97/23/EC, ASME, ABS, DNV-GL
11. Ends: plain end, bevel end
12. Certificate: EN10204-3.1, EN10204-3.2
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