Allegheny Ludlum Corporation u Pittsburgh, PA
BLUE SHEET
Stainless Steel
AL 625HP
TM
(UNS N06626)
Data are typical and should not be construed as maximum or minimum values for specification or for final design. Data on any particular piece of material may vary from tho shown herein.
GENERAL PROPERTIES
Allegheny Ludlum’s AL 625HP alloy (UNS Designation N06626) is an austenitic nickel-ba superalloy
posssing exceptional fatigue resistance. Al 625HP alloy was developed especially for bellows applica-tions. It also has excellent resistance to oxidation and corrosion over a broad range of conditions, including jet engine environments and in many other aerospace and chemical process applications. The alloy has outstanding strength and toughness at temperatures ranging from cryogenic temperatures to 2000°F (1093°C).
The AL 625HP alloy is a restricted composition,
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vacuum melted variant of the widely known alloy 625(UNS N06625) material. It derives its strength from the solid solution strengthening effects of molybdenum and columbium on the nickel-chromium matrix. The elements also contribute to the alloy’s outstanding corrosion resistance. Although the alloy was devel-oped for high temperature strength, it also provides a high level of general corrosion resistance to a wide range of oxidizing and non-oxidizing environments.The levels of chromium and molybdenum provide
excellent resistance to chloride ion pitting and the high level of nickel provides resistance to chloride stress corrosion cracking. The material posss a high degree of formability and shows better weldability than many of the other highly alloyed nickel-ba alloys.The alloy is resistant to intergranular corrosion even in the welded condition.
AL 625HP alloy is produced by a two-step melting process that includes a consumable electrode remelt-ing procedure. At least one of the steps is per-formed in vacuum.
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Trademark of ATI Properties, Inc.
FORMS AND CONDITIONS AVAILABLE
The AL 625HP alloy is available in plate, sheet and strip. The alloy is supplied in the annealed condition.
SPECIFICATION
Al 625HP alloy is covered by the AMS 5879 specifica-tion. It also meets the requirements of the standard alloy 625 (UNS N06625) specification (AMS 5599) and can be dual certified.笔记本电脑型号在哪里看
COMPOSITION LIMITS
Stainless Steel
南京周边游
AL 625HP
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Data are typical and should not be construed as maximum or minimum values for specification or for final design. Data on any particular piece of material may vary from tho shown herein.
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CORROSION RESISTANCE
The high level of chromium and molybdenum in the AL
牛肉的好处625HP alloy provides a high level of pitting and crevice
corrosion resistance to chloride containing media, such
as a water, neutral salts and brines. the alloy is highly
resistant to chloride stress-corrosion cracking. For
additional information, plea consult the Technical
Data Blue Sheet for ALTEMP® 625 alloy.
The alloy is resistant to a variety of corrosive media
from highly oxidizing to moderately reducing. Tests in
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simulated flue gas desulfurization environments show
that AL 625HP alloy is highly resistant to the environ-
ment in contrast to lower alloy austenitic stainless
steels such as Type 316.
OXIDATION RESISTANCE
AL 625HP alloy has excellent oxidation and scaling
resistance at temperatures up to 2000°F (1093°C). It is
superior to many other high temperature alloys under
去稻城亚丁冰秋肉车cyclic heating and cooling conditions.
PHYSICAL PROPERTIES – TYPICAL
VALUES
Physical Constants
Electrical Resistivity
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Technical Data BLUE SHEET Thermal Properties*
Elastic Properties
*Poisson's ratio (µ) computed from the relation:µ = (E-2G)/2G
Data are typical and should not be construed as maximum or minimum values
for specification or for final design. Data on any particular piece of material may
vary from tho shown herein.
Stainless Steel AL 625HP Data are typical and should not be construed as maximum or minimum val
ues for specification or for final design. Data on any particular piece of material may vary from tho shown herein.
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TM
MECHANICAL PROPERTIES
For applications such as deep drawing or hydroform-ing, the final annealing can be modified to produce material with lower strength and higher ductility than the requirements in the table above.
IMPACT RESISTANCT
The AL 625HP alloy maintains high impact resistance at low temperature.
FATIGUE RESISTANCE
The room temperature endurance limit for cold rolled and annealed AL 625HP sheet tested in compl
ete rever bending (constant deflection) was found to be about 35 percent of its tensile strength.
FORMABILITY
The AL 625HP alloy is capable of being formed like the standard austenitic stainless steels. The material is considerably stronger than conventional austenitic stainless steels and conquently requires higher loads to cau the material to deform. During cold working, the material work hardens more rapidly than austenitic stainless steels. The combination of high
Typical room temperature tensile properties of AL 625HP alloy are:
Minimum room temperature tensile properties (per
AMS 5879) are:
initial strength and work hardening rate may necessi-tate intermediate anneals if the cold deformation is extensive. The high ductility of AL 625HP alloy makes it well suited for the hydroforming o bellows type expansion joints.
WELDING
The AL 625HP alloy can be readily welded by conven-tional process ud for austenitic stainless steel,including fusion and resistance methods. The material should be in the mill annealed condition and thor-oughly descaled and cleaned before welding. Pre-heating is not required and postweld treatment is not needed to maintain or restore corrosion resistance.
Material Safety Data Sheets have been prepared for this product and will be made available at or prior to the time of shipment.
Technical DA T A SHEET
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