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Cobalt-Base Alloy
Good High normal temperature and high
temperature hardness , Comparatively
good fatigue-resistance, thermal
shock-resistance and Excellent good
resistance against corrosion, abrasive
dust wear and intermetal wear . Mainly
used in making, repairing and
pre-protection of being wear-,
corrosion-, high-temperature- and
shock-resistance. Main product
classification: Cobalt Bare Rods, Cobalt
Welding Powder , Cobalt Electrodes,
Cobalt Precision Casting and Forging
Parts. |
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Cobalt-Base Bare Rods
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Brand Abroad
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Metal No:
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Nominal Chemical
Composition(W%)
|
HRC
|
Application
|
Reference
Standard
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C
|
Cr
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Si
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Ni
|
W
|
Fe
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Mn
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Mo
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Co
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Shield 1
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Co101
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2.50
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29.00
|
1.00
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≤3.00
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13.00
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≤3.00
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≤1.00
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≤1.00
|
Bal
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50-60
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rotating sealing ring
,gouge type bearing
sleeve, drill head, etc
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AWS A5.21 ERCoCr-C
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Shield 3
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Co103
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2.40
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30.00
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1.00
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≤3.00
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13.00
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≤3.00
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≤1.00
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≤1.00
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Bal
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50-56
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wearing panel of cracker
blade, work rest of
center-less grinding
machine, valve seat, etc
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AWS A5.21 ERCoCr-C
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Shield 4
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Co104
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1.00
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32.00
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1.00
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≤3.00
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14.00
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≤1.00
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≤0.50
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≤0.50
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Bal
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45-50
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hot pressing die of
copper-aluminum alloys,
hot extruding die, dry
cell die, etc
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Shield 6
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Co106
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1.15
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29.00
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1.00
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≤3.00
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4.50
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≤3.00
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≤1.00
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≤1.00
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Bal
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40-46
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motor spiracle, high
temperature and
high-pressure valve
sealing surface, turbine
blade, etc
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AWS A5.21 ERCoCr-A
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Shield 8
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Co108
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0.20
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28.00
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1.00
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2.25
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--
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≤3.00
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≤1.00
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6.50
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Bal
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30-35
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steam turbine blade,
copper casting die,
extruding die, etc.
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Shield 12
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Co112
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1.40
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29.00
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1.20
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≤3.00
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8.00
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≤3.00
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≤1.00
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≤1.00
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Bal
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44-50
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high-temperature and
high pressure valve,
shear edge, sawteeth,
spiral push rod, etc
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AWS A5.21 ERCoCr-B
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Shield 19
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Co119
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3.30
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26.00
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0.90
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≤1.00
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14.00
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≤2.50
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≤1.00
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≤1.00
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Bal
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≥54
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drill head in petroleum
industry
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AWS A5.21 ERCoCr-G
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Shield 20
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Co120
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2.50
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32.00
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1.20
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≤3.00
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17.00
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≤3.00
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≤0.50
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≤1.00
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Bal
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55-59
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rotating sealing
ring ，high-pressure
valve seat, wearing
panel. etc
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AWS A5.21 ERCoCr-E
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Shield 21
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Co121
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0.20
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27.00
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1.00
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≤3.00
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0.50
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≤2.00
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≤1.50
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5.50
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Bal
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20-42
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various liquid valves,
valve seats, water
turbine blade, hot
forging die, etc
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Shield 25
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Co125
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0.05
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20.00
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1.00
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10.00
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15.00
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≤2.00
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≤1.50
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≤1.00
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Bal
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≤24
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high-temperature and
corrosion-resistant
valve sealing surface,
seamless pipe head,
pressure casting dies,
etc.
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Shield 31
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Co131
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0.45
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26.00
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1.00
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10.00
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7.00
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≤3.00
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≤1.00
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≤1.00
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Bal
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30-35
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ubrass casting dies,
extruding dies, steam
turbine blade, etc.
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Shield 32
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Co132
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1.80
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25.00
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1.00
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22.00
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12.00
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≤1.35
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≤0.50
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≤1.00
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Bal
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40-45
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the in/outlet valve
sealing surface of
internal combustion
engines.
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AWS A5.21 ERCoCr-F
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Shield 37
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Co137
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2.00
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33.00
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1.10
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24.00
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5.00
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≤1.35
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≤1.00
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--
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Bal
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44-50
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pre-protection and
repair of saw teeth,
shear blade, spiral push
rods, etc.
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Shield T-400
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Co140
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0.08
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8.50
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2.60
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1.50
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--
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≤1.50
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≤1.00
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28.00
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Bal
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50-60
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valve and roller path,
plastic extruder in
strongly corrosive
media, etc.
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Shield 50
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Co150
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0.12
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28.00
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1.00
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--
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--
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21.00
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≤1.00
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--
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Bal
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--
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Comparatively good high
temperature corrosion-
and fatigue-resistance
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Shield T-800
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Co180
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0.08
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18.00
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3.50
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≤1.50
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--
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≤1.50
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≤1.00
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28.00
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Bal
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52-56
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valve and roller path,
plastic extruder in
strongly corrosive
media, etc.
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Cobalt-Base Electrodes
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Nominal Chemical
Composition(W%)
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rotating sealing ring,
gouge type bearing,
sleeves, valve seat,
cutter edge, etc
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high temperature and
high-pressure valve ,
hot shear blade, turbine
blade, etc
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high-temp and high pres
valves, shear edge, saw
teeth, spiral push rod,
etc
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high-temp and high-pres
valve, water turbine
blade, hot forging die,
etc
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high-temperature and
corrosion-resistant
valve sealing surface
seamless pipe socket,,
pressure casting dies,
etc.
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Cobalt-Base
Forging
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Brand Abroad
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Metal No:
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Nominal Chemical
Composition(W%)
|
Application
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C
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Si
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Cr
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Mo
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Mn
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Fe
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Ni
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Co
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Shield 21MB2
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Co121MB2
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0.35
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1.00
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28.00
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6.00
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1.00
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0.75
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1.00
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Bal
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Medicine using ,casting
bar, etc
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Shield 25B
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Co125B
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0.10
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1.00
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20.00
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1.00
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2.00
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2.00
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10.00
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Bal
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used where fatigue-,
intermetal
wear-resistance
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Cobalt-Base Precision Casting
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Brand Abroad
|
Metal No:
|
Nominal Chemical
Composition(W%)
|
HRC
|
Application
|
Reference Standard
|
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C
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Cr
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W
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Si
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Fe
|
Mo
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Ni
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Co
|
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Shield 1Z
|
Co101
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2.50
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29.00
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12.00
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1.00
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3.00
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1.00
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3.00
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Bal
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50-56
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valve seat and bearing
sleeve, etc
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Shield 3Z
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Co103
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2.50
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30.00
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12.50
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1.00
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3.00
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1.00
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3.00
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Bal
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51-58
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pump shaft sleeve,
rotating sealing ring,
wear-resistance gasket,
bearing bush , plastics
extruder gasket.
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Shield 4Z
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Co104
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0.90
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32.00
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14.00
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1.00
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1.00
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0.50
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0.50
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Bal
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45-59
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hot pressing and hot
extruding
copper/aluminum alloy
die, zinc-plating
equipment bearing, cell
die ,etc
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Shield 6Z
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Co106
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1.20
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29.00
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4.50
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1.50
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3.00
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1.50
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3.00
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Bal
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39-43
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steam and chemical valve
seats.
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AMS 5387C-01
UNS R30006
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Shield 12Z
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Co112
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1.60
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29.00
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8.00
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1.50
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2.50
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1.00
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3.00
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Bal
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47-51
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hot extruding die
,zinc-plating equipment
bearing, etc.
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Shield 20Z
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Co120
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2.50
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32.00
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17.00
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1.00
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2.50
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1.00
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2.50
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Bal
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55-59
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pump shaft sleeve,
rotating sealing ring,
wear-resistance gasket,
bearing bush , plastics
extruder gasket.
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Shield 21Z
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Co121
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0.25
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27.00
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--
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1.00
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3.00
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5.50
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2.75
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Bal
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32
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steam turbine blade
,brass casting die ,hot
extruding die
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AMS 5385G-99
UNS R30021
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Shield 31Z
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Co131
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0.50
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25.50
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7.50
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1.00
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2.00
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0.50
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10.50
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Bal
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30-35
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steam turbine blade,
shaft sleeve and hot
extruding die, etc
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AMS 5382H-00
UNS R30031
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Shield 33Z
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Co133
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2.30
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33.00
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17.50
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1.00
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2.00
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--
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1.00
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Bal
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52-56
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high-temperature wearing
parts and food
processing industry
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Shield T800Z
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Co180
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0.10
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18.00
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--
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0.30
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Ni+Fe:
3.00
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28.50
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--
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Bal
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54-58
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valve gate, valve board
and plastic extruder
gasket
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Cobalt-Base Welding Powder
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|
Brand Abroad
|
Metal No:
|
Nominal Chemical
Composition(W%)
|
HRC
|
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