904LStainless Steel Pipe is particularly used in applications where the 316L Stainless Tube and 317L Stainless Pipe are not adequate.
UNS NO8904, commonly known as 904L, is a low carbon high alloy austenitic stainless steel which is widely used in applications where the corrosion properties of AISI 316L and AISI 317L are not adequate .
The addition of copper to this grade gives it corrosion resistant properties superior to the conventional chrome nickel stainless steels, in particular to sulphuric, phosphoric and acetic acids. However, there is limited use with hydrochloric acids. It also has a high resistance to pitting in chloride solutions, a high resistance to both crevice and stress corrosion cracking. Alloy 904L performs better than other austenitic stainless steels due to the higher alloying of nickel and molybdenum.
JUNYUE Steel is professional manufacturer of 904L Stainless Steel Seamless Pipe
Applications
Chemical processing for sulphuric, phosphoric and acetic acids
Heat exchangers&Condenser tubes
Oil and Gas
Standards :
ASTM A213
ASTM A269
ASTM A312
EN 10216-5
TECHNICAL DATA
Mechanical Properties
|
Temper |
Annealed |
|
|
Tensile Rm |
71 |
ksi (min) |
|
Tensile Rm |
490 |
MPa (min) |
|
R.p. 0.2% Yield |
32 |
ksi (min) |
|
R.p. 0.2% Yield |
220 |
MPa (min) |
|
Elongation (2” or 4D gl) |
35 |
% (min) |
Chemical Composition (% )
|
Element |
Min |
Max |
|
C |
- |
0.2 |
|
Mn |
- |
2 |
|
Ni |
23 |
28 |
|
Cr |
19 |
23 |
|
S |
- |
0.3 |
|
Mo |
4 |
5 |
|
N |
- |
0.1 |
|
Cu |
1 |
2 |
|
P |
- |
0.03 |
|
Si |
- |
0.7 |
