It is an austenitic stainless steel alloy with high nickel (24%), chromium (22%), molybdenum (6%), and nitrogen (0.18%) content and is commonly known as superaustenitic stainless steel (alloys such as 254 SMO (UNS S31254) and 904L (UNS N08904) also fall under the superaustenitic designation) while 2205 (UNS S32305/ S31803) and 2507 (UNS S32750
It is an austenitic stainless steel alloy with high nickel (24%), chromium (22%), molybdenum (6%), and nitrogen (0.18%) content and is commonly known as superaustenitic stainless steel (alloys such as 254 SMO (UNS S31254) and 904L (UNS N08904) also fall under the superaustenitic designation) while 2205 (UNS S32305/ S31803) and 2507 (UNS S32750 AL-6XN® - Rolled Alloys, Inc.6.3% molybdenum; Over 25 years of proven seawater service; Practical immunity to chloride stress cracking; 50% stronger than stainless; ASME coverage up to 800°F; Easily welded; Available in ALL product forms; AL-6XN ® alloy (UNS N08367) is a low carbon, high purity, nitrogen-bearing "super-austenitic" stainless alloy. The AL-6XN alloy was
Table 2 6% molybdenum superaustenitic stainless steels UNS EN Material C Cr Ni Mo Cu N PRE N S31254 1.4547 254SMO (Outokumpu) 0.01 20 18 6.1 0.8 0.20 43 To ensure optimum corrosion performance in 6%Mo alloys or for joints in 7%Mo or high nitrogen alloys such as those shown in table 3, the use of alloy C22 consumables is preferred. How do super austenitic and super - Langley Alloy IncSuper austenitic stainless steels, such as Alloy 254 are a significant step up from regular austenitic grades such as Alloy 304 and Alloy 316. The chromium and nickel contents are increased, together with >6% molybdenum, in order to achieve a pitting resistance equivalent number (PREN) of 43 or greater.
is an advanced 7% molybdenum super-austenitic stainless steel offering corrosion resistance in most environments superior to 6% molybdenum super-austenitic stainless steels. In many environments alloy 27-7MO offers resistance approaching that of much more highly alloyed materials such as INCONEL alloys 625, 22, and C-276. Product Bulletin High Alloy Stainless Steels September S31254 Super Austenitic CK3MCuN Super Austenitic (commonly called 254SMO 20% chromium, 18% nickel, 6% molybdenum, 1% copper ASME SA351 Grade CK3MCuN ASME SA182 Grade F44 ASME SA240 S31254 Table 3. Compliance of High Alloy SST Grades with NACE Specifications Grade NACE MR01752002 NACE MR0175/ISO 15156 NACE MR0103
SMO 254 (en 1.4547 / 254 smo material) also known as 6mo Stainless Steel (6Mo) with UNS S31254 is a high Molybdenum (Molybdenum Metal) i.e 6 Molybdenum and Nitrogen alloyed Super Austenitic Stainless Steel with low Carbon content. 6Mo Material is designed with a combination of Nickel and Copper , impact tough resistance to chloride stress corrosion cracking, and Specification Sheet:Alloy SSC-6MO (UNS N08367)SSC-6MO (UNS N08367) is a superaustenitic 6% molybdenum alloy that exhibits far greater resistance to chloride pitting, crevice corrosion and stress-corrosion cracking than the standard 300 series and standard duplex stainless steels.
superaustenitic 6% molybdenum alloy that exhibits far greater resistance to chloride pitting, crevice corrosion and stress-corrosion cracking than the standard 300 series and standard duplex stainless steels. It also serves as a cost-effective substitute for more expensive nickel-base alloys in applications where excellent corrosion resistance, Stainless AL-6XN; UNS N08367; AL6XN; Superaustenitic AL6XN is a superaustenitic stainless steel with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. AL6XN is a 6 moly alloy that was developed for and is used in highly aggressive environments. It has high nickel (24%), molybdenum (6.3%), nitrogen and chromium contents that give it excellent resistance to chloride stress corrosion cracking,
Technical information on Stainless steel Alloy 6Mo UNS S31254 Werkstoff Nr. 1.4547 Stainless steel Alloy 6Mo Datasheet Fine TubesTechnical information on Stainless steel Alloy 6Mo UNS S31254 Werkstoff Nr. 1.4547
Super - austenitic. Highly alloyed iron-nickel-chromium stainless steels containing molybdenum have been developed to respond to severe corrosion specifications. Superaustenitic stainless steels exhibit great resistance to chloride pitting and crevice corrosion because of high molybdenum content (>6%) and nitrogen additions, and the higher nickel content ensures The 6% Mo Superaustenitics, the Cost Effective Alternative The following sections describe some corrosion properties, weldability characteristics, and applications of these alloys. Alloy 1925hMo - Alloy 926 - UNS# N08926 This alloy was derived from Alloy 904L by increasing its molybdenum content from 4.8% to 6.5% and stabilizing the alloy by fortifying it with 0.2% nitrogen, an austenitic stabilizer.
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