1.4958
|
Material No. |
1.4958 |
|
EN symbol (short) |
X5NiCrAlTi31-20 |
|
AISI/SAE |
— |
|
UNS |
UNS N 08810 |
|
AFNOR |
— |
|
BS |
— |
|
alloy |
alloy 800H |
|
Registered work's label |
Nicrofer®3220 |
|
Standards |
SEW 310 |
Description
The
elevated-temperature alloy 1.4958 (alloy 800H) is mainly
used in high-temperature plants.
Our product range in 1.4958 (alloy 800H) are tubes and
pipes, fittings and flanges, accessories.
Chemical composition ¹
|
C
≤ % |
Si
≤ % |
Mn
≤ % |
P
≤ % |
S
≤ % |
Cr
% |
Mo
|
Ni ²
≤ % |
V
|
|
0,03-0,08 |
0,07 |
1,5 |
0,015 |
0,01 |
19,0-22,0 |
|
30-32,5 |
|
Nb
≤ % |
Ti ³
% |
Al ³
% |
Co
≤ % |
Cu
≤ % |
N
|
Fe
|
|
|
|
0,1 |
0,2-0,5 |
0,2-0,5 |
0,50 ² |
0,50 |
|
|
|
|
|
¹ in accordance with Key
to Steel 2001 ² Ni+Co = 30-32,5% ³ Ti+Al
<= 0,7% |
Special characteristics
|
|
Temperature range |
Density kg/m³ |
Hardness (HB) |
|
600°C - 950°C |
8,0 |
|
|
high-temperature resistant steel, very high
creep strength: outstanding stability
against carbonisation, oxidation and
nitriding |
Welding filler
|
|
covered rod electrode 1.4958 or 2.4648
|
Main fields of application
(depending on the
specific conditions of use)
|
|
thermal treatment plants, branchpipes, jet
pipes, muffles, cages, industrial furnaces,
chemical industry, pressure bombs, building
of steam boilers, petrochemical industry,
coal gasification, waste incineration plants |
|
(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 |
