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Product Overview
Introduction To Stellite Alloys
MOKSH TUBES & FITTINGS LLP is a trusted manufacturer, supplier, exporter, importer, and stockist of Stellite Alloys in a variety of forms including Rods, Bars, Tubes, Welding Wires, Electrodes, Sheets, Plates, and custom components made to order. We specialize in Stellite 6, Stellite 12, Stellite 21, and other grades used for wear-resistant and high-temperature
Stellite is a family of cobalt-chromium-based superalloys engineered to resist wear, corrosion, and high-temperature degradation. Originally developed for cutting tools, Stellite alloys have become indispensable in industries requiring reliable performance under extreme mechanical and thermal stress. These alloys are known for their exceptional hardness, non-magnetic properties, high-temperature oxidation resistance, and ability to retain cutting edges and structural integrity in harsh environments.
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Chemical Composition – Stellite® 6 (Typical)
| Element | Composition (%) |
|---|---|
| Cobalt (Co) | Balance |
| Chromium (Cr) | 27 – 32 |
| Tungsten (W) | 4.0 – 6.0 |
| Carbon (C) | 0.9 – 1.4 |
| Nickel (Ni) | ≤ 3.0 |
| Iron (Fe) | ≤ 3.0 |
| Silicon (Si) | ≤ 1.0 |
| Manganese (Mn) | ≤ 1.0 |
📌 Exact chemistry varies by Stellite® grade (6, 12, 21, etc.).
Mechanical Properties of Stellite® Alloys
| Property | Annealed | Hot-Finished |
|---|---|---|
| Tensile Strength | 620 – 830 MPa | 827 – 1034 MPa |
| Yield Strength (0.2%) | 414 – 620 MPa | 690 – 896 MPa |
| Elongation | 15 – 25% | 10 – 15% |
| Brinell Hardness | 350 – 500 | 500 – 700 |
| Rockwell Hardness | 40 – 60 HRC | 55 – 70 HRC |
Uses and Advantages
Outstanding wear and galling resistance
Retains hardness at elevated temperatures
Excellent resistance to corrosion and oxidation
Non-magnetic and stable in extreme conditions
Available in both cast and wrought forms
Applications of Stellite
Stellite is widely used in applications that demand resistance to wear, corrosion, and extreme temperatures. These include:
Chemical Processing
Oil & Gas
Marine
Pharmaceutical
Heat Exchangers
Power Plants
WHY CHOOSE US?
FAQ's
What is Stellite and why is it used?
Stellite is a cobalt-chromium superalloy designed for extreme wear, corrosion, and high temperature resistance, making it ideal for aerospace, oil & gas, power generation, and cutting tool applications.
Which forms of Stellite products are available?
Stellite is supplied as seamless and welded pipes, tubes, sheets, plates, coils, strips, round/flat/hex/square bars, pipe fittings, flanges, fasteners, welding wires, electrodes, and custom fabricated components.
What are the key advantages of Stellite?
Stellite offers excellent wear and galling resistance, maintains hardness at high temperatures, resists corrosion and oxidation, is non magnetic, and is available in both cast and wrought forms.
In which industries is Stellite commonly used?
Stellite is widely used in aerospace (turbine blades, vanes), valve and pump components, oil & gas and petrochemical equipment, power generation (boilers, turbines), medical and dental tools, and cutting tools and dies.
Why choose MOKSH TUBES & FITTINGS for Stellite alloys?
We provide specialized hard-to-find Stellite alloys, high-quality cobalt-based stock, custom fabrication and welding services, in-house quality control, metallurgical testing, fast delivery, and global export capabilities.
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