904L, 1.4539, N080904

904L

 

904L (1.4539)

Summary

1.4539 (alloy 904L) is an austenitic special steel with high molybdenum content as well as addition of copper and extremely low carbon content.

Standard Product Forms

 

Chemical Composition Wt,%

 

Min

Max.

 

Min.

Max.

 

Min.

Max.

Ni

23

28

Cu

1.0

2.0

C

 

0.02

Cr

19

23

Co

 

 

Si

 

1.0

Fe

 

 

Al

 

 

P

 

0.04

Mo

4

5

Ti

 

 

S

 

0.03

W

 

 

Mn

 

2.0

N

 

 

Physical

Constants

Density,g/ 8.24

Melting Range,℃

Typical Mechanical Properties

Elastic

Modulus

(Gpa)

200

Mean Co-eff of Thermal

Expansion (μm/m/℃)

0-100℃

15

0-315℃

 

0-538℃

 

Thermal Conductivity

(W/m.k)

At 20℃

13

At 500℃

 

Specific Heat

0-100 ℃

(J/Kg.K)

500

Elec Resistivity

(nΩ.m)

850

Tensile Strength (Mpa) min

490

Yield Stregth 0.2%

Proof (Mpa) min

220

Elongation (% in 50 MM)

min

35

 


We have products:

seamless pipe,seamless tube,

 

 

 

 

 

welded pipe,welded tube,

pipe fitting,flange,bar,plate


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Advanced equipment and technological process.
We have 5 bright annealed furnace with 30 mtrs in length, the highest temperature can reach 1350℃, and the tolerance between the set and real temperature could be within 2℃, and it ensures the mechanical properities and the quality of the pipe surface.
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