Corrosion Resistant Alloy Nuts

F904L UNS N08904 W.Nr.1.4539 Heavy Hex Nut Wholesale

F904L UNS N08904 W.Nr.1.4539 Heavy Hex Nut Wholesale
Product Details

904L (NO8904) Nut
The nut is a fastener with internal threads and used in conjunction with a screw for mechanical parts for movement or power.

BDF can offer all kinds of hot forged and cold formed nuts such as hexagon nuts, heavy hex nuts, hexagon coupling nuts, hexagon thin nuts, hexagon castle nuts, self locking nuts, hexagon domed cap nuts and other non-standard nuts according to customer drawings. The size ranges from M6-M100 in METRIC and 3/8” to 3-1/2” in INCH.
904L is a very low carbon containing high alloy austenitic stainless steel. The steel designed for the harsh corrosion conditions. 904L has been standardized in many countries now, and have already been approved in the manufacture of pressure vessels.
Application:
904L alloy is a versatile material that can be used in many industrial applications:
1. Petroleum, petrochemical equipment, such as petrochemical equipment in the reactor.
2. Sulfuric acid storage and transportation equipment, such as heat exchangers.
3. Power plant flue gas desulfurization device, the main use of the site are: absorption tower of the tower, flue, stall door, pieces, sprinkler systems.
4. Scrubbers and fans in organic acid treatment systems.
904L Chemical compositon:

Alloy

%

Ni

Cr

Mo

Cu

Fe

C

Mn

Si

P

S

904L

Min.

23

19

4

1

Balance






Max.

28

23

5

2

0.02

2

1

0.045

0.035

904L Physical properties:

Density

8.0 g/cm3

Melting point

1300-1390 ℃

904L Alloy minimum mechanical properties in the room temperature:

Alloy

Tensile strength
Rm N/mm2

Yield strength
RP0.2N/mm2

Elongation
A5 %

904L

490

216

35

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