Tuesday, January 4, 2022

904L

TypeSeamless & Welded PipeButt Weld FittingsFlanges & Pressure Fittings
Sizes1/4″ thru 16″1/2″ thru 12″All descriptions
SchedulesSch 10, 40, 80, 160, & XXHSch 10, 40, 80, 160, & XXH
ASTM Standards
BarButt Weld FittingsPipe, Welded & SeamlessTube, WeldedTube, SeamlessPlate
B649B366B677- smls; B673 – weldedB674B677B625
Minimum Physical Properties
Tensile StrengthYield StrengthElongation
71 KSI Min.31 KSI Min.35% Min.
Chemical Composition (wt%)
CMnPSSiNiCrFeMo
0.02 Max.2.00 Max0.045 Max.0.035 Max.1.00 Max.23.0 – 28.019.0 – 23.0Balance4.0 – 5.0

Properties

N08904 (904L) is a high alloy austenitic product intended for use under severely corrosive conditions. It offers good resistance to:

* Pitting and crevice corrosion
* Intergranular corrosion
* Stress corrosion cracking
* General corrosion

Applications

904L is used in the chemical industry to process many chemicals. Some examples are: Acetic acid, Acetylene, Acrylates, Acrylonitrile, Aluminum sulfate, Ammonium phosphate, Ammonium sulfate, Battery acid, Benzene, Butyl acetate, Caprolactum, Cellophane, Citric acid, Nitrophosphate, Oxalic acid, Superphosphate, Tall oil, Tartaric acid, Uranium oxide and Zinc sulfate.

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