In environments where wear, corrosion, and elevated temperatures devastate ordinary metal parts, Stellite Sheets the cobalt-based superalloy known for its unmatched hardness, oxidation resistance, and enduring toughness provide a proven fortress ensuring operational longevity and safety, embraced by chemical, oil & gas, marine, pharmaceutical, and power generation industries worldwide. Aurico Alloys LLP offers certified Stellite Sheets delivering these performance advantages to procurement heads, engineers, and fabricators who refuse to compromise on reliability or quality.
Table of Contents:
Stellite (UNS R30545, ASTM F1058) is a cobalt-chromium alloy with complex carbide microstructures formed by tungsten, molybdenum, carbon, and nickel additions. This unique chemistry enables exceptional resistance to abrasion, erosion, galling, pitting corrosion, and oxidation at temperatures up to 650°C (1200°F). Its superior hardness (typically 38-46 HRC) combined with corrosion resistance makes it ideal for highly stressed components like valve seats, cutting tools, turbine blades, pumps, and marine hardware subject to cavitation and severe wear.
Aurico Alloys LLP supplies Stellite Sheets and plates in varied thicknesses and exacting finishes, fully traceable and certified according to ASTM F1058 and AMS standards. Our inventory supports critical industrial sectors requiring rapid delivery of high-performance material for fabrication, repair, and OEM manufacturing.
Selecting Aurico’s Stellite Sheets equips your operation with a material championing durability across the harshest chemical, marine, sour gas, pharmaceutical, and power environments delivering unmatched wear resistance, corrosion stability, and long-term cost efficiencies.
High-quality Stellite Sheets ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Stellite (UNS R30545, ASTM F1058) |
| Standards | ASTM F1058, AMS 5876, AMS 5894 |
| Thickness Range | 0.02" to 0.50" (0.5 mm to 12.7 mm) |
| Width Range | Custom, up to 12” or more |
| Finish | Cold rolled, annealed, pickled, polished |
| Forms | Sheets, strips, plates, and coils |
| Certification | Full ASTM F1058 mill test certificates, RoHS/REACH compliance, traceability |
Equivalent Grades & Standards
Stellite 6
| Property | Value |
|---|---|
| UNS number | R30006 |
| Density | 8.44 g/cm3 |
| Melting range | 1250-1360 °C |
Identifiers and physical constants for Stellite 6. A dash means no such designation is published for this grade.
Stellite 12
| Property | Value |
|---|---|
| UNS number | R30012 |
| Density | 8.53 g/cm3 |
| Melting range | 1225-1280 °C |
Identifiers and physical constants for Stellite 12. A dash means no such designation is published for this grade.
Stellite 21
| Property | Value |
|---|---|
| UNS number | R30021 |
| Density | 8.33 g/cm3 |
| Melting range | 1295-1435 °C |
Identifiers and physical constants for Stellite 21. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP stocks a comprehensive range of Stellite Sheets in precision thicknesses and widths to meet urgent manufacturing and repair needs worldwide, with custom cutting and shape fabrication for OEM and industrial clients.
Chemical Composition
Stellite 6
| Element | Min (%) | Max (%) |
|---|---|---|
| Cobalt (Co) | — | Balance |
| Chromium (Cr) | 27 | 32 |
| Tungsten (W) | 3 | 6 |
| Carbon (C) | 0.9 | 1.4 |
Composition limits for Stellite 6. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Stellite 12
| Element | Min (%) | Max (%) |
|---|---|---|
| Cobalt (Co) | — | Balance |
| Chromium (Cr) | 27 | 32 |
| Tungsten (W) | 7.5 | 9.5 |
| Carbon (C) | 1.4 | 2.0 |
Composition limits for Stellite 12. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Stellite 21
| Element | Min (%) | Max (%) |
|---|---|---|
| Cobalt (Co) | — | Balance |
| Chromium (Cr) | 26 | 29 |
| Molybdenum (Mo) | 4.5 | 6.0 |
| Carbon (C) | — | 0.35 |
| Nickel (Ni) | — | 3.0 |
Composition limits for Stellite 21. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Range |
|---|---|
| Tensile Strength (MPa) | 1100 – 1500 |
| Yield Strength (0.2%, MPa) | 800 – 1100 |
| Hardness (HRC) | 38 – 46 |
| Service Temperature (°C) | Up to 650 (intermittent) |
| Corrosion Resistance | Excellent in cavitation, oxidation, abrasion, erosion, crevice, and pitting |
Applications & Benefits
- Valve seats, pump components, and bushings subject to extreme wear and corrosion
- Cutting tools, saw teeth, and high speed machining parts requiring high hardness and wear resistance
- Turbine blades, aircraft engine components needing heat and oxidation resistance
- Highly corrosive environments in chemical processing and oil & gas where wear and corrosion rates are extreme
- Marine equipment exposed to saltwater erosion, cavitation, and corrosion
- Medical implants and surgical instruments benefiting from biocompatibility and corrosion resistance
FAQ & Insights
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s Stellite Sheets combine exceptional wear resistance, corrosion toughness, and high-temperature capabilities essential for chemical, oil & gas, marine, pharma, and power applications demanding durability and performance under the harshest conditions. When your equipment faces extreme erosion, corrosion, and temperature challenges, isn’t it time to specify Aurico’s certified Stellite Sheets for enduring operational excellence?