| Name: | Butt Weld Fittings Reducer Elbow | Shape: | Elbow |
|---|---|---|---|
| Technics: | Butt Weld | Material: | ALLOY 8367 |
| High Light: | DIN 1.4501 Butt Weld Fittings， NO8367 Butt Weld Fittings， ASTM B366 90 Degree Elbow | ||
NICKEL ALLOY AL6XN BUTT WELD FITTING ASTM B366 NO8367 ELBOW 90DEG LR
Overview
- AL6XN is a superaustenitic stainless steel with outstanding resistance to chloride pitting， crevice corrosion and stress corrosion cracking. It is a low carbon， high purity， nitrogen-bearing"super-austenitic"stainless alloy. The AL-6XN alloy was designed to be a seawater resistant material and has since been demonstr ated to be resistant to a broad range of very corrosive environments. It is readily available from stock in a wide range of product forms， including thick plate that is suitable for multi-pass welding during field fabrication.
- The high strength and corrosion resistance of the AL-6XN alloy make it a better choice than the conventional duplex stainless steels and a cost effective alter native to more expensive nickel-base alloys in applications where excellent formability， weldability， strength and corrosion resistance are essential. It is also a cost-effective alternative to less expensive alloys， such as Type 316， that do not have the strength or corrosion resistance required to minimize life cycle costs in certain applications.
- The high nickel and molybdenum contents provide improved resistance to chloride stress-corrosion cracking. Copper (Cu) has been intentionally kept to a residual level for improved performance in seawater40. The high alloy composition of the AL-6XN alloy resists crevice corrosion and pitting in oxidizing chloride solutions to a degree previously achieved only by nickel-base alloys and titanium.
UNS NO8367 Chemical Composition
| Ni | Cr | Mo | C | N | Mn | Si | P | S | Cu | Fe |
| 23.5-25.5 | 20.00-22.00 | 6.00-7.00 | 0.03 Max | 0.18-0.25 | 2.0 Max | 1.00 Max | .040 Max | 0.03 Max | 0.75 Max | Remainder |
UNS NO8367 Mechanical Properties
| Temp. °F (°C) | Ult. Tensile Strength， psi | .2% Yield Strength， psi | Elongation in 2”， percent | Charpy V-Notch Toughness， ft-lb |
| -450 (-268) | 218，000 | 142，000 | 36 | 353* |
| -320 (-196) | 196，000 | 107，000 | 49 | 85 |
| -200 (-129) | – | – | – | 100 |
| 70 (21) | 108，000 | 53，000 | 47 | 140 |
| 200 (93) | 99，900 | 49，400 | 47 | – |
| 400 (204) | 903，000 | 40，400 | 46 | – |
| 600 (316) | 86，000 | 36，300 | 47 | – |
| 800 (427) | 87，000 | 36，000 | 48 | – |
Butt Weld Fitting Types
| Long & Short Radius Elbows |
| Long & Short Radius Return Elbow |
| Concentric & Eccentric Tees |
| Equal & Reducing Tees |
| Stub Ends |
| End Caps |
AL6XN Superaustenitic Stainless Steel Features
Magellan Metals alloy AL6XN is an extremely strong nickel-molybdenum alloy that provides many beneficial features， some of which include:
- Excellent resistance to pitting and crevice corrosion in chloride solutions
- Practical immunity to stress corrosion cracking in NaCl environments
- High strength and toughness
- 50% stronger than stainless steel
- ASME coverage up to 800° F
- Easily welded
B366 NO8367 Fittings Applications:
- Seawater Heat Exchangers
- Offshore Oil & Gas Rigs
- FGD Scrubbers
- Reverse Osmosis Equipment
- Distillation Columns
