UNS N08904/DIN1.4539/ASTM 904L/00Cr20Ni25Mo4.5Cu Stainless Steel

904L  chemical component:

C≤0.03,Si≤1.00 ,Mn≤2.00,P≤0.035,S≤0.03,Ni:23.0-25.0,Cr:18.0-20.0,
Mo:3.0-4.0,Cu:4.0-5.0  

mechinical property      

Tensile strength (Rm N/was) : 490 

Yield strength (RP0.2 N/was) : 216   

  904 l (N08904, 904) in the super austenitic stainless steel chromium containing 14.0 18.0%, 24.0 26.0% nickel, 4.5% molybdenum.904 l super austenitic stainless steel belongs to low carbon high nickel, molybdenum austenitic stainless acid-resistant steel, for the introduction of French h. S proprietary materials of the company.Has the very good activation - passivation shift ability, excellent corrosion resistance, in the oxidizing acid such as sulfuric acid, acetic acid, formic acid, phosphoric acid have good corrosion resistance, in neutral chlorine ion medium has the very good pitting resistance, at the same time has good resistance to crevice corrosion and stress corrosion resistance.Used in various concentration of sulfuric acid under 70 ℃, under ordinary conditions of any acetic acid concentration, any temperature, resistance and formic acid and acetic acid in mixed acid corrosion resistance is also very good

1,Material  &  Standard  comparation:

Carbon steel               Q235B, SS400,A36, ST37-2, S235JR,S235J2,S235J0,SA283CrC,SM400.

High Strength Steel    S690QL,S690Q,S690QL,S690QL1,S890Q,S890QL,S890QL1,S960Q,S960QL

Shipbuilding Steel:     A,B,D,E,AH32,DH32,EH32,DH36,EH36,FH36,AH40,DH40,EH40

Quality Control.

Our quality control department consists of experienced technicians. These personnel strictly control the whole production procedure, from introduction of raw materials to finish products. They ensure high quality products for our customers .

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