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Data Sheet:

 Alloy 904L (Wst 1.4539) 

Chemical Composition Limits

Weight %

Ni

Cr

Mo

Cu

Mn

Si

S

C

N

904L

23-28 19-23 4-5 1-2

2

Max

1

Max 

0.035

Max

0.020

Max

0.10

Max

 

Alloy 904L is an austenitic stainless steel intended for use under severe corrosion conditions, with a very good resistance to attacks in acidic environment, as sulphuric, phosphoric and acetic acid. Very good resistance to pitting corrosion, stress corrosion cracking and a much better resistance to crevice corrosion than steels of alloy 304L and alloy 316L.  Used for chemical processing, pollution control equipment, oil and gas well piping, heat exchangers, acid production and pickling equipment.

  

Availability

Alloy 904L is available in  Instrument tube, Precision tube and Hydraulic tube.   On request Alloy 904L Coiled Tube can be supplied with a stainless steel seamless and welded execution.

 

Typical Mechanical Properties (Annealed)

Alloy 904L Tube

Grade

Tensile Strength Mpa Yield Strength  (0.2% Offset) Mpa

Elongation (%)

904L 500-700 200 40

 

Disclaimer

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

 

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