UNS N08811 High temperature high strength alloy steel
UNS N08811is a fully austenitic low-carbon nickel - iron - chromium alloy in the same series of With Incoloy 800,the cobalt content of alloy can be strictly controlled under 0.01%.UNS N08811 ability a lot of corrosion medium corrosion. Its high content of nickel in the aqueous corrosion condition has the very good resistance to stress corrosion cracking performance. UNS N08811alloy steel usually applied in nitric acid condenser, nitric acid corrosion resistance, steam heating pipe and so one which request 500 degree working environment.
UNS N08811alloy steel usually be delivered with annealed state.
1. UNS N08811 equal material:W.Nr.1.4876, X10NiCrAlTi3220, Incoloy 800HT, NA15, UNS N08811, FeNi32Cr21AlTi
2. UNS N08811Chemical composition
|
%
|
Ni
|
Cr
|
Fe
|
Mo
|
Co
|
C
|
Mn
|
Si
|
S
|
P
|
Cu
|
Al
|
Ti
|
|
min
|
30.0
|
19.0
|
|
|
|
0.06
|
|
|
|
|
|
0.15
|
0.15
|
|
max
|
35.0
|
23.0
|
39.5
|
|
|
0.1
|
1.5
|
1.0
|
0.015
|
|
0.75
|
0.60
|
0.60
|
3.UNS N08811Physical properties :
UNS N08811alloy steel Density: 8.0g/cm3
UNS N08811alloy steel Melting temperature range :1350-1400 degree
4. UNS N08811Mechanical properties at room temperature (minimum)
|
specifications
|
yield strength RP0.2 N/mm2
|
yield strength RP1.0 N/mm2
|
Tensile strength Rm N/mm2
|
elongation A50%
|
Brinell hardness HB
|
|
|
cold rolling strip hot rolled plate
|
0.5-6.4
|
240
|
265
|
585
|
30
|
<=200
|
|
5-100
|
135-165
|
|||||
|
bar Cold working Hot working
|
1.6-64
|
|
||||
|
25-100
|
||||||
|
>100-240
|
220
|
250
|
550
|
35
|
||
|
pipe Cold working Hot working
|
64-240
|
180
|
-
|
530
|
30
|
-
|
|
5-100
|
240
|
265
|
585
|
30
|
||
|
Condensation and heat exchanger
|
16-76
|
5. Application: UNS N08811 alloy steel are widely used in various industrial sectors whose working temperature does not exceed 550 degree. Typical applications are:
sulfuric acid pickling factories with the heating pipe, containers, baskets, and chain, etc.
water cooling heat exchanger, Marine products pipeline system, acidic gas pipeline environment.
heat exchanger in phosphoric acid production, evaporator, washing, dip tube, etc.
air heat exchanger in petroleum refining
food engineering
chemical process
and high pressure oxygen flame retardant alloy application.
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