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AL6XN China supplier stainless steel hardware hex machine bolts
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Product Details
| Place of Origin | Jiangsu, China | Brand Name | x-do | |
| Model Number | Half thread DIN931 |
Product Description
AL6XN China supplier stainless steel hardware hex machine bolts
UNS N08367
ASTM B 688, B 691, B 675 / 676
B 462, B 366, B 564, B 804
AL6XN Overview
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, chloride pitting, and exceptional general corrosion resistance. AL6XN is primarily used for its improved pitting and crevice corrosion resistance in chlorides. It is a formable and weldable stainless steel.
Because of its nitrogen content, AL6XN has greater tensile strength than common austentitic stainlesses, while retaining high ductility and impact strength.
Corrosion Resistance
Chromium, molybdenum, nickel and nitrogen all contribute to overall resistance to corrosion by various media. Chromium is the principal agent for conferring corrosion resistance in neutral or oxidizing environments. Chromium, molybdenum and nitrogen increase resistance to pitting corrosion. Nickel imparts the austenitic structure. Nickel and molybdenum both provide increased resistance to chloride stress corrosion cracking in reducing environments.
What are the characteristics of AL-6XN?
- Excellent resistance to pitting and crevice corrosion in chloride solutions
- Practical immunity to stress corrosion in NaCl environments
- High Strength and toughness
Chemical Composition, %
Ni | Cr | Mo | C | N | Mn |
|---|---|---|---|---|---|
23.5-25.5 | 20.00-22.00 | 6.00-7.00 | 0.03 Max | 0.18-0.25 | 2.0 Max |
Si | P | S | Cu | Fe | |
1.00 Max | .040 Max | 0.03 Max | 0.75 Max | Remainder |
In what applications is AL-6XN used?
- Reverse osmosis desalination equipment and pumps
- FGD Scrubbers
- Chemical process tanks and pipelines
- Seawater heat exchangers
- Tall oil distillation columns and packing
- Offshore oil and gas production equipment
- Pulp bleaching plant washers, vats, press rolls and pipelines
ASTM Specifications
Pipe Welded | Tube Welded | Sheet/Plate | Bar | Flanges & Fittings |
|---|---|---|---|---|
B675, A312 | B676, A249 | B688, A240 | B691, A479 | B462, A182 |
Mechanical Properties
Representative Tensile and Impact Properties, Plate
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 | - |
Contact Us
- Nanjing Xidiou Stainless Steel Co., Ltd.
- Contact nameYuanKai Miao Chat Now
- Phone86-25-86628507
- AddressNo.A320 Yindu building,Shuiximen street,Nanjing,China, Nanjing, Jiangsu
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