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Alloy 800/800H/800HP Pipe Fittings

Chemical Composition %

C

Cr

Fe

Ni

Al

Ti

Al / Ti

 

 

Min

 

 

 

 

.06-.10

19.0-23.0

39.5

30.0-35.0

.15-.60

.15-.60

.85-1.20

AVAILABILITY
Seamless Pipe 1/4" – 10" 
Weld Pipe 1/2" - 48" 
Seamless Butt-Weld Fit. 1/2" - 10" 
Welded Butt-Weld Fit. 1/2" - 48" 
Threaded Fittings 1/4" - 4"
Forged Fittings 1/4" - 4" 
Outlets 1/4" - 24" 
Flanges 1/2" - 24" 

SPECIFICATIONS
ASTM - B407, B514, B366, B408, B564 
ASME - SB407, SB514, SB366, SB408, SB564

DESCRIPTION
Alloy 800 is a widely used material of construction for equipment that must resist corrosion, have high strength or resist oxidation, carburization and other harmful effects of high-temperature exposure. For high temperature applications requiring optimum creep and rupture properties Alloy 800HP is used. The Chromium in the alloy imparts resistance to oxidation and corrosion. The high Nickel content maintains an austenitic structure so that the alloy is ductile. The Nickel also contributes resistance to scaling, general corrosion and stress corrosion cracking. The iron content provides resistance to internal oxidation.

DESIGN FEATURES
Good creep-rupture properties at temperatures above 600 deg. C (1110 deg.F) without loss of ductility during long term use at temperatures below 700 deg. C (1290 deg.F), due to limitation of (Ti & A) content to max 0.7%. However, by using 800HP with increased (Al & Ti) content to 1.2%, temperatures above 700 deg. C (1290 deg.F) can be achieved.
Good resistance to reducing oxidizing and nitriding atmospheres and to atmospheres which alternates between reducing and oxidizing conditions.
Metallurgical stability in long-term applications at high temperatures.

TYPICAL APPLICATIONS
Steam / hydrocarbon reforming for components such as pig tails, headers, collectors, manifolds, transfer piping, catalyst tubes, and quench system piping Ethylene pyrolsis tubing in convection and radiant sections - resistance to carburization and good mechanical properties
Ethylene dichloride cracking tubes - resistance to carburization and to dry hydrogen chloride and chlorine
Components, eg. Heat exchangers, piping systems, etc... in coal conversion plants Steam generators tubing in helium coolant, high temperature reactor systems - high strength, resistance to helium and steam

TENSILE REQUIREMENTS
Tensile Strength (KSI) 72.5
Yield Strength (KSI) 25

KSI can be converted to MPA (Megapascals) by multiplying by 6.895.


Alloy 800H 45 Degree Elbow   Alloy 800H 90 Degree Elbow   Alloy 800H 180 Degree Elbow   Alloy 800H Equal Tee
Alloy 800H 45 Degree Elbow
Alloy 800H 90 Degree Elbow
Alloy 800H 180 Degree Elbow
Alloy 800H Equal Tee
Alloy 800H Unequal Tee   Alloy 800H Barred Tee   Alloy 800H Concentric Reducer   Alloy 800H Eccentric Reducer
Alloy 800H Unequal Tee
Alloy 800H Barred Tee
Alloy 800H Concentric Reducer
Alloy 800H Eccentric Reducer
Alloy 800H Lateral   Alloy 800H Y   Alloy 800H Long Radius Bend   Alloy 800H Long Stubend
Alloy 800H Lateral
Alloy 800H Y
Alloy 800H Long Radius Bend
Alloy 800H Long Stubend
Alloy 800H Short Stubend   Alloy 800H Cap   Alloy 800H Swage Nipple   Alloy 800H Barrel Nipple
Alloy 800H Short Stubend
Alloy 800H Cap
Alloy 800H Swage Nipple
Alloy 800H Barrel Nipple
Alloy 800H Spool   Alloy 800H Forged Fitting   Alloy 800H Threaded Fitting   Alloy 800H Bsp Threaded Fitting
Alloy 800H Spool
Alloy 800H Forged Fitting
Alloy 800H Threaded Fitting
Alloy 800H Bsp Threaded Fitting
Alloy 800H Bspt Threaded Fitting   Alloy 800H Npt Threaded Fittings   Alloy 800H Sockolet   Alloy 800H Weldolet
Alloy 800H Bspt Threaded Fitting
Alloy 800H Npt Threaded Fittings
Alloy 800H Sockolet
Alloy 800H Weldolet
Alloy 800H Elbolet   Alloy 800H Latrolet   Alloy 800H Nipolet   Alloy 800H Flangeolet
Alloy 800H Elbolet
Alloy 800H Latrolet
Alloy 800H Nipolet
Alloy 800H Flangeolet
Alloy 800H Sweepolet   Alloy 800H Socketweld Flange   Alloy 800H Weldneck Flange   Alloy 800H Blind Flange
Alloy 800H Sweepolet
Alloy 800H Socketweld Flange
Alloy 800H Weldneck Flange
Alloy 800H Blind Flange
Alloy 800H Lap Joint Flange   Alloy 800H Weldneck Rtj Flange   Alloy 800H Threaded Flange   Alloy 800H Orifice Flange
Alloy 800H Lap Joint Flange
Alloy 800H Weldneck Rtj Flange
Alloy 800H Threaded Flange
Alloy 800H Orifice Flange
Alloy 800H Spectacle Blind Flange   Alloy 800H Pipe        
Alloy 800H Spectacle Blind Flange
  Alloy 800H Pipe        


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