| 名称： | AL6XN | 标准： | ASTM B366 / B564 EN 10204/3.1B |
|---|---|---|---|
| 尺寸 | DN15-DN1200 | Uses & Application: | Power， Chemical， Construction， Gas， Metallurgy， Shipbuilding Etc |
| 班级 | 2000 磅， 3000 磅， 6000 磅， 9000 磅 | 尺寸 | ASME B16.9 ANSI / ASME B16.28 MSS-SP-43 |
| 强光 | astm b366 stainless steel elbows， asme b16.28 stainless steel elbows， astm b564 ss elbow | ||
ASTM B366 / B564 BW Elbows UNS N08367 AL6XN AISI / ASME B16.28 Stainless Steel Fittings
AL6XN Overview
AL6XN is a superaustenitic stainless steel with outstanding resistance to chloride pitting， crevice corrosion and stress corrosion cracking. AL6XN is a 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.
耐腐蚀性
铬、钼、镍和氮都有助于全面抵御各种介质的腐蚀。铬是在中性或氧化环境中赋予抗腐蚀性的主要成分。铬、钼和氮可增强抗点蚀能力。镍赋予奥氏体结构。在还原环境中，镍和钼都能提高抗氯化物应力腐蚀开裂的能力。
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
化学成分， %
| 倪 | Cr | 莫 | C | N | 锰 | Si | P | S | 铜 | 铁 |
| 23.5-25.5 | 20.00-22.00 | 6.00-7.00 | 0.03 最大值 | 0.18-0.25 | 2.0 最大值 | 1.00 最大值 | 0.040 最大值 | 0.03 最大值 | 0.75 最大值 | 剩余 |
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 规格
| 管道焊接 | 焊接管 | 片材/板材 | 酒吧 | Flanges & Fittings |
| B675， A312 | B676， A249 | B688， A240 | B691， A479 | B366， A182 |
机械性能
Representative Tensile and Impact Properties， Plate
| 温度°F（°C） | 超强。拉伸强度，psi | .2% 屈服强度，psi | 伸长率为 2"，百分比 | 夏比 V 形缺口韧性，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 | – |
*For welded pipe and tube， a joint efficiency factor of .85 must be applied.
* AL-6XN® is a registered trademark of the Allegheny Ludlum Corporation
