1.4539
|
Material No.
|
1.4539 |
|
EN symbol (short) |
X1NiCrMoCu25-20-5 |
|
AISI/SAE
|
— |
|
UNS |
N 08904 |
|
AFNOR |
Z 2 NCDU 25-20 |
|
B.S. |
— |
|
alloy
|
alloy 904 L |
|
Registered work's label |
— |
|
Normen |
VdTÜV 421 , SEW 400 |
Description
Material 1.4539 (alloy 904L) is an austenitic special
steel with high molybdenum content as well as addition
of copper and extremely low carbon content.
Our product range in 1.4539 are tubes and pipes,
fittings and flanges, accessories.
Chemical composition ¹
|
C
≤ % |
Si
≤ % |
Mn
≤ % |
P
≤ % |
S
≤ % |
Cr
% |
Mo
% |
Ni
% |
V
|
|
0,02 |
0,70 |
2,0 |
0,030 |
0,010 |
19,0-21,0 |
4,0-5,0 |
24,0-26,0 |
|
Nb
|
Ti
|
Al
|
Co
|
Cu
% |
N
≤ % |
Fe
|
|
|
|
|
|
|
|
1,20-2,00 |
0,15 |
|
|
|
|
¹ in accordance with Key
to Steel 2001 |
Special characteristics
|
|
Temperature range: |
Density kg/m³ |
Hardness (HB) |
pressure bomb/pressure vessel
- 60°C to 400°C |
7,9 |
≤
230 |
|
excellent stability against pitting
corrosion, stress corrosion and
intergranular corrosion |
Welding filler
|
|
1.4539, 1.4519 |
Main fields of application
(depending on the
specific conditions of use)
|
|
offshore, sea water technology, chemical
industry, good stability against reducing
acids of medium strength like sulphuric acid
and phosphoric acid and various chloric
media, refinery, paper industry, pulp
industry |
|
(all aforementioned specifications serve as
a general orientation and have to be
reviewed depending on the specific
conditions of use) |
The
contents, results, and technical data from this site may
not be reproduced either electronically,
photographically or substantively without permission
from Metserve International.
Copyright © 2007 Metserve Metallurgical Consultancy
Tel:
+27-11-7041010 Fax +27-11-4622386
Email: metserve@pixie.co.za
www.metserve.co.za |
