¡¡
Heat
resistant Alloys for Petrochemical industries
| Manaurite |
Composition
|
Applications
|
Main
features
|
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Austenitic
alloys
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18-9
|
18Cr-9Ni
|
Tube
sheets for petrochemical furnaces
|
Oxidation
resistance up to 800¡æ(1472¡ãF)
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20
|
25Cr-20Ni
|
Reforming
and ethylene cracking tubes |
Resistance
to creep up to 980¡æ(1800¡æ)
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36
X
|
25Cr-35Ni-Nb
|
Ammonia & methanol furnaces. Reforming and cracking coils. |
High
creep resistance and creep ductility. Good carburization and oxidation
resistance. Good weldability after ageing.
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XM
|
25Cr-35Ni-Ni-Ti-Zr-RE
|
Ammonia&methanol
furnaces. Reforming and cracking coils.
|
Superior
creep resistance and creep ductility. Improved carburization and
oxidation resistance up to 1100¡æ(2012¡ãF)
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36
XS
|
25Cr-35Ni-Nb-W
|
Ammonia&methanol
furnaces. Reforming and cracking coils.
|
High
carburization and oxidation resistance up to 1080¡æ(1976¡ãF). Good
creep strength and good creep strain rate.
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35-25W
|
25Cr-35Ni-W
|
Ammonia
& methanol furnaces. Reforming and cracking coils.
|
High
carburization and oxidation resistance up to 1080¡æ(1976¡ãF). Good
creep strength and good creep strain rate.
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XTM
|
35Cr-45Ni-Nb-Ti-Zr
|
DRI
radiation.
Reforming and cracking coils. High carburizing metal dusting atmospheres. |
Superior
carburization and oxidation resistance. High creep strengh.
Operating temperature up to 1160¡æ(2120¡ãF) for cracking furnaces. Also reforming appliance-resistance to contamination by heavy gas oil(S, Na, V) |
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900
|
25Cr-32Ni-Nb-LowC
|
For
parts located outside furnaces e.g.reformer furnace manifolds, transferlines,
pyrolysis furnace crossovers
|
Good
creep strength. High thermal shock resistance. Good ductility after
ageing. Operating temperature up to 1000¡æ(1832¡ãF)
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900B
|
25Cr-32Ni-Nb-LowC
|
User
at higher temperatures e.g.for parts inside furnaces
|
Similar
properties to MAN900 with higher oxidation and carburization resistance.
Operating temperature exceeding 1000¡æ (1832¡ãF)
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50W
|
25Cr-50Ni-
|
Elbows in petrochimical furnaces. Tube sheets and supports. Christmas tree supports. |
Operating
at elevated temperatures in cracking process.
Very good resistance to oxidation up to 1200¡æ(2192¡ãF). Excellent creep resistance |
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50/50NB
|
50Cr-50Ni-Nb
|
Tube
sheets and tube supports.
|
Resistance
to oxidation and fuel ash corrosion.
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75
|
15Cr-75Ni
|
Special
petrochemical components
|
Good
aged ductility
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Austenitic
alloys with cobalt
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35K
|
25Cr-35Ni-15W
|
Reformer tubes
for petrochemcal appliances at high temperature. |
Withstands
high temperatures up to 1254¡æ(2300¡ãF).¡¡Good resistance to hot corrosion
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Super
22H
|
28Cr-48Ni-W
|
Similar
to Manaurite 50 W but used at highter tempratures.Radiant tubes.
Tube supports. |
Improved
creep resistance with respect to Manaurite 50W.
Operating temperature up to 1200¡æ (2192¡ãF). Good resistance to carburization. |
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Austenitic
alloys with tungsten
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MO-RE
2
|
32Cr-48Ni-w
|
Tube
sheets and suports-furnace parts Thermowells.
|
Creep
and oxidation resistance up to 1300¡æ(2372¡ãF)
|
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YANTAI
MANOIR HEAT RESISTANT ALLOYS CO.,LTD .¡¡
149
Westlane,Xingfu Sicun,Yantai,264002 ¡¡P.R.China ¡¡Tel:86-535-6810571¡¡
Fax:86-535-6819741¡¡