LITERATURE
Data Book
Data Sheet
Fabrication Information
AL-6XN vs 254 SMO
AL-6XN vs 904L
Alloy 20 vs AL-6XN/904L
Case Histories
SPECIFICATIONS
UNS: N08367
ASTM: B 688, A 240, B 675, A 312, B 676, A 249, B 804, B 691, A 479, B 462, A 182, B 564, B 366, B 472
ASME: SB 688, SA 240, SB 675, SA 312, SB 276, SA 249, SB 691, SA 479, SB 462, SA 182, SB 564, SB 366 CASE CODE N-438-3, B31.1 CASE 155-1
FEATURES
- Excellent resistance to pitting and crevice corrosion in chloride solutions
- Practical immunity to stress corrosion cracking in NaCl environments
- 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
APPLICATIONS
- FGD Scrubbers
- Reverse Osmosis
- Distillation Columns
- Offshore Oil and Gas
- Heat Exchangers
COMMON TRADE NAMES
- UNS N08367
AL-6XN®
AL-6XN® / UNS N08367 is a low carbon, high purity, nitrogen-bearing super-austenitic stainless alloy. It was designed to be a seawater resistant material and has since been demonstrated to be resistant to a broad range of corrosive environments.
The high strength and corrosion resistance make it a better choice than the conventional duplex stainless steels and a cost effective alternative to more expensive nickel-base alloys where excellent formability, weldability, strength and corrosion resistance are essential.
The levels of chromium, molybdenum and nitrogen in AL-6XN all serve to provide resistance to acidic oxidizing chloride solutions previously achieved only by the nickel base alloys, and high nickel (24%) and molybdenum (6.3%) contents make AL-6XN an excellent solution to chloride ion stress corrosion cracking. Because of its nitrogen content AL-6XN features greater tensile strength than common austenitic stainless, while retaining high ductility and impact strength. ASME allowable stresses are up to 75% higher than for 316L stainless, and more than twice those for the copper-nickel alloys.
FORMS
MARKETS & INDUSTRIES
