1. Brief introduction:

   It’s a Ni-Fe-Cr alloy with additions of Mo，Cu and Ti.

   It has excellent resistance to reducing and oxidizing acids, stress-corrossion cracking and localized attack such as pitting and crevice corrossion.And it especially resistant to sulfuric and phosphoric acids.

   Used for chemical processing, pollution-control equipment, oil&gas well piping, nuclear fuel reprocessing, aid production and pickling equipment.

    

2. Main specifications:
   

   USA	Chinese	UNS	Werkstoff Nr.
   Alloy 825	NS142	N08825	2.4858

    

3. Chemical composition under ASTM B425-11（2017） standard:

   alloy N08825	chemical composition,%
   	Ni	Cr	Fe	Mn	C
   	38.0-46.0	19.5-23.5	≥22	≤1.0	≤0.05
   Cu	Si	S	Al	Ti	Mo
   1.5-3.0	≤0.5	≤0.03	≤0.2	0.6-1.2	2.5-3.5

   Fe element shall be determined arithmetically by difference.

   
   

4. Main product types:

   wire,rod,forging, bar,strip,sheet/plate,tube/pipe.

   
   

5. Main produce standards:

   Wire,Rod, Bar	Forging	Plate/Sheet/Strip	Seamless Tube/Pipe	Welded Tube/Pipe	Fitting
   ASTM B425 ASME SB425	ASTM B564 ASME SB564	ASTM B424 ASME SB424	ASTM B163 ASME SB163 ASTM B423 ASME SB423	ASTM B704 ASTM B705	ASTM B366/B366M-16

   
   

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