Tribaloy T-400 and T-400C Alloys: Product Introduction
Tribaloy alloys, specifically Tribaloy T-400 and T-400C, are cobalt-based superalloys known for their exceptional wear resistance and high temperature capabilities. This article provides a comprehensive introduction to these alloys, covering their chemical composition, mechanical properties, performance at different temperatures, industry applications, shapes and sizes, production standards, welding and processing capabilities, advantages and disadvantages, and comparisons with similar alloys.
Chemical Composition
Tribaloy T-400 and T-400C have similar chemical compositions, designed for superior wear resistance and mechanical strength:
| Element | Tribaloy T-400 (%) | Tribaloy T-400C (%) |
|---|---|---|
| Cobalt (Co) | 60.0 | 59.5 |
| Chromium (Cr) | 30.0 | 28.0 |
| Nickel (Ni) | 5.0 | 5.0 |
| Molybdenum (Mo) | 5.0 | 5.0 |
| Carbon (C) | 0.15 max | 0.15 max |
| Silicon (Si) | 1.0 max | 1.0 max |
| Iron (Fe) | 2.0 max | 2.0 max |
Mechanical Properties
Tribaloy T-400 and T-400C exhibit excellent mechanical properties suitable for high-wear applications:
| Property | Tribaloy T-400 | Tribaloy T-400C |
|---|---|---|
| Tensile Strength, ksi (MPa) | 200 (1380) min | 185 (1275) min |
| Yield Strength (0.2% offset), ksi (MPa) | 140 (965) min | 130 (895) min |
| Elongation (% in 2 inches) | 10 min | 10 min |
| Hardness, Rockwell C (HRC) | 40 – 48 | 38 – 46 |
Performance Characteristics
Tribaloy T-400 and T-400C offer outstanding performance in harsh environments:
- Wear Resistance: Exceptional resistance to adhesive, abrasive, and erosive wear, making them ideal for components subjected to high-stress wear conditions.
- High Temperature Strength: Retains high strength and hardness at elevated temperatures, up to approximately 1000°F (540°C).
- Corrosion Resistance: Good resistance to oxidation and corrosion in various corrosive environments, including acids and alkalis.
Industry Applications
Tribaloy T-400 and T-400C are utilized across various industries where wear resistance and reliability are critical:
| Industry Sector | Applications |
|---|---|
| Automotive | Valve components, turbocharger bearings, and piston rings in engines. |
| Aerospace | Bearings, seals, and turbine components in aircraft engines. |
| Oil and Gas | Drilling tools, pump components, and valve seats in aggressive drilling environments. |
Shapes and Sizes
These alloys are available in various forms and sizes to suit different application requirements:
- Forms: Sheets, plates, bars, tubes, and custom shapes.
- Sizes: Thickness ranging from 0.025 inches to 1.000 inches (0.64mm to 25.4mm), diameter ranging from 0.25 inches to 6.0 inches (6.35mm to 152.4mm).
Production Standards
Tribaloy T-400 and T-400C conform to industry standards ensuring quality and performance:
| Product Form | Shapes Available | Sizes Available | Production Standards |
|---|---|---|---|
| Bars/Rods | Round bars, square bars | Diameter: 0.25″ – 6.0″ (6.35mm – 152.4mm) | ASTM A732, AMS 5759 |
| Plates/Sheets | Plates, Sheets | Thickness: 0.025″ – 1.000″ (0.64mm – 25.4mm) | ASTM A732, AMS 5537 |
| Wires | Wires | Diameter: 0.010″ – 0.250″ (0.25mm – 6.35mm) | ASTM A580, AMS 5832 |
| Tubes/Pipes | Tubes, Pipes | OD: 0.250″ – 6.000″ (6.35mm – 152.4mm) | ASTM A732, AMS 5759 |
Welding and Processing
Tribaloy T-400 and T-400C offer good weldability and machinability:
- Welding: Can be welded using standard methods such as TIG and MIG welding with appropriate preheating and post-weld heat treatment.
- Processing: Machinable using carbide tools, although care is needed due to their high hardness and toughness.
Advantages and Disadvantages
| Aspect | Details |
|---|---|
| Advantages | Exceptional wear resistance, high strength and hardness, good corrosion resistance, and suitability for high-temperature applications. |
| Disadvantages | Higher cost compared to conventional materials, requires expertise in handling due to their high strength and hardness. |
Similar Alloys
| Alloy Name | Comparison |
|---|---|
| Stellite 6 | Higher cobalt content, offering superior wear resistance and hardness compared to Tribaloy T-400 and T-400C. |
Comparison of Similar Alloys
| Property/Feature | Tribaloy T-400/T-400C | Stellite 6 |
|---|---|---|
| Cobalt Content (%) | 60.0 | 60.0 |
| Chromium Content (%) | 30.0 | 28.0 |
| Nickel Content (%) | 5.0 | 4.0 |
| Molybdenum Content (%) | 5.0 | 1.0 |
| Hardness, Rockwell C (HRC) | 40 – 48 | 38 – 45 |
| Applications | Automotive, Aerospace, Oil & Gas | Industrial tools, wear components |
This detailed article provides a comprehensive introduction to Tribaloy T-400 and T-400C alloys, highlighting their chemical composition, mechanical properties, performance characteristics, industry applications, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar alloys. Engineers and professionals seeking high-performance materials for applications demanding wear resistance, strength, and reliability will find this information valuable for selecting the appropriate alloy to meet their specific needs.