Cobalt alloys HY ST31 / Stellite 31/UNS R30031
HY St31 Material grades and equivalents: Stellite 31/UNS R30031
Chemical composition:
|
Co |
Cr |
W |
C |
Ni |
Mo |
Fe |
Si |
Other |
|
Bal. |
26 |
7.5 |
0.5 |
10 |
- |
<2.0 |
<1.0 |
<0.5 |
Mechanical properties:
|
ASME/AWS |
Hardness(HRC) |
|
- |
20-35 |
Characteristic as below：
Stellite 31 is a cobalt-base, high-temperature superalloy having high tensile and creep properties in pre-cision casting. It is superior in stress-rupture properties to most alloys commercially available, especiallyat 1700 and 1800°F.
Processing conditions and application:
Stellite 31 is mainly used in gas turbine engines in areas subject tohot gas erosion.
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Regular shape for all kinds of alloys |
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Form |
Specification |
Supply Form |
Others |
|
Sheet |
Thickness：0.40-4.75mm，General Width：1000、1219、1500mm |
Whole Coil or piece of it |
Cold Annealed，Surface 2B、2E |
|
Plate |
Thickness：4.76-60mm，Width：1500、2000、2500mm，Length：3000、6000、8000、8500mm（Under 10mm plate can be coiled） |
Whole Coil or piece of it |
Single hot rolling，Solid solution annealed state，Surface 1D |
|
Belt |
Thickness：0.10-3.0mm，Width：50-500mm |
Whole Coil or Specified size |
Cold Annealed，Surface 2B、2E |
|
Bar & Rod |
Rolled barΦ5-45mm，Length≤1500mm |
Polished Bar（circle、Square） |
Solution annealing,descaling |
|
Forged barΦ26-245mm，Length≤4000mm |
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Weld tube |
Outer diameterΦ4.76-135mm，Wall Thickness0.25-4.00mm，Length：≤35000 mm |
Base on your requirement |
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|
Seamless Tube |
Outer diameterΦ3-114mm，Wall Thickness0.2-4.5mm |
Base on your requirement |
|
|
Wire |
Outer diameterΦ0.1-13mm |
Base on your requirement |
Ni & Ni alloy, Ti & Ti alloy |
|
Forged piece |
discs,rings,squares,blocks,slabs |
Base on your requirement |
Steel, Alloy |
|
Flangs |
All kinds of Flangs |
Base on your requirement |
Steel, Alloy |
|
Welding Material |
Coil wire Φ0.025mm-1.6mm |
Base on your requirement |
Certificate of Origin：America, Sweden, Britain, Germany, Austria, Italy, France. |
|
Straight WireΦ1.6mm-4.0mm |
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Welding rodΦ1.2mm-4.0mm |
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Tube |
Elbow, three links, four links, different diameter size |
Base on your requirement |
Ni & Ni alloy, Ti & Ti alloy |
|
Explosive bonded laminate |
Raw Sheet Thickness≥2mm |
Base on your requirement |
Ni & Ni alloy, Ti & Ti alloy |
