904L Pipe fittings,904L Elbow,Tee,reducer,1.4539 Pipe fittings,ASME B16.9,N08094 Elbow

ASTM B366 WP904L Material 1.4539 (alloy 904L, UNS N08094) is an austenitic special steel with high molybdenum content as well as addition of copper and extremely low carbon content.
ASTM B366/B366M-20 

Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings

904L is a non-stabilised low carbon high alloy austenitic stainless steel. The addition of copper to this grade gives it greatly improved resistance to strong reducing acids,particularly sulphuric acid. It is also highly resistant to chloride attack – both pitting crevice corrosion and stress corrosion cracking. This grade is non-magnetic in all conditions and has excellent weldability and formability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperatures. 904L does have very substantial contents of the high cost ingredients nickel and molybdenum. Many of the applications in which this grade has previously performed well can now be fulfilled at lower cost by duplex stainless steel 2205 (S31803 or S32205),

Our product range in 1.4539 are tubes and pipes, fittings and flanges, accessories.

1. Commodity: 904L Pipe fittings,904L Elbow,Tee,reducer,1.4539 Pipe fittings,ASME B16.9
2. Material: UNS N0904L 
3. Standards:ASME B16.9  ASTM B366

Chemical Composition Of  TP 904L Pipe fittings

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

Cu

904L

min.

max.

0.02

2

1

0.045

0.035

19

23

4

5

23

28

1

2

 

Mechanical Properties Of 904L Pipe fittings

Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B)

Brinell (HB)

904L

490

220

36

70-90 typical

150

904L equivalent grade

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
904L N08904 904S13 1.4539 X1NiCrMoCuN25-20-5 2562

UNS NO8904, commonly known as 904L stainless steel, is a low carbon austenitic nickel-chromium stainless steel with additions of molybdenum and copper. 904L pipe fittings, 904L flanges and 904L product forms are mainly used where the corrosion resistant properties of 316L and 317L are inadequate, especially in severe corrosive conditions.

Specification ASTM B 366 / ASME SB 366
Type Seamless / Welded / Fabricated
Products Elbow,Tee,reducer,Caps
Range ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS.
Dimensions ANSI/ASME B16.9, B16.28, MSS-SP-43.