SS 904L Technical Specification

 
Adfit, leading manufacturers & exporters of pipe fittings in India. We supplies various pipe fittings including buttweld seamless pipes and welded pipe fittings, SS 904L Plate, SS 904L Flanges & Branch connections in different sizes, range, type and schedule-class. Adfit regularly supplies its material to core industries such as Sulphuric Acid and phosphoric acid plants, seawater heat exchangers, chemical plants, food processing plants.

Chemical Composition %

C
Cr
Cu
Mn
Mo
Ni
P
S
Si
Max
Max
Max
Max
Max
0.02
19.0-23.0
1.0-2.0
2.0
4.0-5.0
23.0-28.0
0.045
0.035
1.0


SS 904L


SPECIFICATIONS

ASTM B677, B366
ASME SB677, SB366

DESCRIPTION
904L is a high-alloy austenitic stainless steel with low carbon content. The grade is intended for use under severe corrosive conditions. It has been application proved over many years and was originally developed to resist corrosion in dilute sulfuric acid. It is standardized and approved for pressure vessel use in several countries. Structurally, 904 L is fully austenitic and is less sensitive to precipitation ferrite and sigma phases than conventional austenitic grades with high molybdenum content. Characteristically, due to the combination of relatively high contents of chromium, nickel, molybdenum and copper 904L has good resistance to general corrosion, particularly in sulfuric and phosphoric conditions.

Machinability
Slow speeds and positive feeds will minimize this alloy's tendency to work harden and glaze. Use chip breakers where possible to overcome problems with long draggy chips.

Welding
Most common fusion and resistance methods may be employed. For maximum corrosion resistance, it is recommended to use filler metals of equal or higher alloy content.

Hot Working
Hot work should proceed after uniform heating to 2000-2200 F. Doe not work the material at less than 1800 F. Full annealing should follow any hot work to re attain maximum ductility and corrosion resistance.

Cold Working
Although higher forces are required, 904L will respond in a similar fashion to other austenitic stainless steels like 304, 316 or 317. Most common operations can be successfully performed.

Annealing
1920-1990 F ( 1050-1090 C ), rapid cooling.

Hardening
This alloy does not respond to heat treatment.. It may only be hardened by cold reduction.

DESIGN FEATURES
Good resistance to pitting and crevice corrosion.
Very good resistance to stress corrosion cracking.
Good resistance to intergranular corrosion.
Good formability and weldability.
Maximum service temperatures of
450 deg.C. (824 deg.F).

TYPICAL APPLICATIONS
Production and transport of sulfuric acid
Metal pickling in sulfuric acid
Production and concentration of phosphoric acid
Use in seawater, brackish water, condensers, heat exchangers and pipe work in general
Paper and allied industries
Gas washing
Chemical and pharmaceutical industries

TENSILE REQUIREMENTS
Tensile Strength (KSI) 70 
Yield Strength (KSI) 25
KSI can be converted to MPA (Megapascals) by multiplying by 6.895.

 
SS 904L Plate
 
SS 904L Plate
 
 
We manufacturers and supplies 904L Plate Super Austenitic Stainless Steel (UNS N08904) - 
An austenitic stainless steel with corrosion resistance superior to SUS 316L and SUS 317L, NAS 255 (UNS N08904, SUS 890L) includes 1.5 percent added copper for excellent resistance against such reducing acids as Sulphuric Acid and phosphoric acid plants, seawater heat exchangers, chemical plants, food processing plants.
> We Keep Stock of steel 904L Plates Super Austenitic Stainless Steel (UNS N08904) from Yakin Japan.
 
Product specification
Range :

Thickness :
03mm to 20mm thick 

Size :
1500 mm width to 6000 mm Length & Coil Form 

Form :
Coil, Plate cut size, blank or circle, flat 
 
SS 904L Plate Cut Profile
 
 
 
We offer an Tailor made Plate cut profile as per your requirement and need.

Thickness :
03mm to 20mm thick

Size : 
Customize size

Form :
Plate cut size, blank or circle, flat, Strip, Ring ( Flange ) 

 
Stainless Steel Plates 904L, Stainless Steel Sheets 904L in Mumbai, SS 904L, Stainless Steel 904L Sheets, Plates, Round Bar, Pipes, Tube, Flanges in Mumbai, India