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Model No: Ti-6-2-4-2
UNS R54620/Ti-6-2-4-2 titanium alloy sheet
UNS R54620 (Ti-6Al-2Sn-4Zr-2Mo) titanium alloy sheet is a near-alpha titanium alloy capable of long-term stable service at 540°C; it is used for engine blades, compressor disks, and airframe thermal protection structures.
Delivery :
FOB
minimum order :
100 kilograms
Supply Ability :
5000Tonkilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
Customers who source near-alpha high-temperature titanium alloys like Ti-6-2-4-2 (Ti-6Al-2Sn-4Zr-2Mo) are typically professionals in the aerospace, engine manufacturing, or high-end automotive sectors; their primary concerns center on the reliability of the material's actual high-temperature performance, the ability of the supply to meet rigorous standards, and the mitigation of technical risks during the procurement process.
Solutions for Material Issues
Based on our experience, customers sourcing this type of material typically face three key challenges: technical selection, quality verification, and supply chain reliability. The page content should directly address these potential concerns.
Section 1: What exactly makes this material superior? In other words, how does Ti-6-2-4-2 compare to TC4 and Ti-6246, and why should you choose it?
Positioning and Advantages: Ti-6Al-2Sn-4Zr-2Mo is a near-alpha titanium alloy that combines high strength, excellent creep resistance, and fracture toughness across a temperature range from room temperature to 540°C. It offers a higher operating temperature limit than TC4 (Ti-6Al-4V) and demonstrates superior stability at elevated temperatures.
Typical Applications: High-pressure compressor blades, disks, spacers, and seals for aero-engines, as well as engine afterburner structures and airframe thermal skins.
Key Performance Specifications:
Density: 4.54 g/cm³
Tensile Strength (duplex annealed): ≥ 940 MPa
Yield Strength: ≥ 860 MPa
Elongation: ≥ 15%
Beta Transus Temperature: Approx. 990°C
Does your operating condition involve sustained high temperatures or cyclic loading? Would you like me to compare the creep resistance of Ti-6242 versus Ti-6242S (the silicon-containing version) for you?
Section 2: What are the chemical composition and the applicable standards? Can the supplier's heat/batch number be traced? How are impurity elements controlled?
Specifications:
- Standard Chemical Composition (based on Lork data):
Aluminum (Al): 6%
Tin (Sn): 2%
Zirconium (Zr): 4%
Molybdenum (Mo): 2%
Titanium (Ti): Balance (~86%)
- Standards:
Aerospace Standard: AMS 4919 (Plate, Sheet, and Strip)
UNS Number: R54620
- A key highlight of Lork Group’s quality control is that every batch of Ti-6242 plate comes with third-party reports for both spectral analysis and mechanical property re-verification, ensuring strict compliance regarding interstitial elements—such as oxygen, nitrogen, and hydrogen—which are critical factors affecting toughness.
Do you require cut samples in specific dimensions or materials for small-batch trial production? We have a robust batch traceability system for aerospace materials; please let me know your specific specifications, and I will send you a sample Quality Certificate for reference.
Chemical composition of grade 6Al 2Sn 4Zr 2Mo (UNS R54620)
| Element | Content (%) |
|---|---|
| Titanium, Ti | 83.785 - 87.24 |
| Aluminum, Al | 5.5 - 6.5 |
| Zirconium, Zr | 3.6 - 4.4 |
| Tin, Sn | 1.8 - 2.2 |
| Molybdenum, Mo | 1.8 - 2.2 |
| Iron, Fe | ≤ 0.25 |
| Oxygen, O | ≤ 0.15 |
| Silicon, Si | 0.060 - 0.10 |
| Carbon, C | ≤ 0.050 |
| Nitrogen, N | ≤ 0.050 |
| Hydrogen, H | ≤ 0.015 |
| Other, each | ≤ 0.10 |
| Other, total | ≤ 0.30 |
Mechanical properties of grade 6Al 2Sn 4Zr 2Mo (UNS R54620)
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1110 MPa | 161000 psi |
| Yield strength | 1050 MPa | 152000 psi |
| Poisson’s ratio | 0.325 | 0.325 |
| Elastic modulus | 118 GPa | 17100 ksi |
| Shear modulus | 44.5 GPa | 6450 ksi |
| Elongation at break | 13% | 13% |
| Hardness, Brinell | 318 | 318 |
| Hardness, Knoop | 346 | 346 |
| Hardness, Rockwell C | 34 | 34 |
| Hardness, Vickers | 333 | 333 |
Thermal properties of grade 6Al 2Sn 4Zr 2Mo (UNS R54620)
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@0.000-100°C/32-212°F) | 7.70 µm/m°C | 4.28 µin/in°F |
| Thermal conductivity | 7 W/mK | 48.6 BTU in/hr.ft².°F |
Lork Group – From Material Selection to Delivery
We receive many inquiries regarding Ti-6-2-4-2 (Ti-6Al-2Sn-4Zr-2Mo) titanium alloy plates, such as:
What is the supply condition of the plate? Can heat treatment be performed according to my specifications?
What is the supply condition of the plate? Can heat treatment be performed according to my specifications?
Please find the following information below:
1. Supply Condition: Typically supplied in the duplex annealed condition to ensure an optimal balance between performance and ductility.
2. Key Note (based on recommendations from Lork materials engineers): When placing an order, please clearly specify the product name, grade, condition, dimensions, quantity, and standard (including version number)—for example,"AMS 4919, Duplex Annealed, 2.0mm thickness."For critical dimensions, please confirm the applicable standard in advance.
3. Lork Group Value-Added Services: We offer processing services based on your drawings—such as cut-to-length, precision leveling, and surface sandblasting or pickling—to minimize material loss during intermediate processing stages.
Do your design drawings specify particular requirements for the flatness or roughness of the material? Click the email link to submit the technical specifications sheet, and our engineers can conduct a preliminary assessment of manufacturing feasibility.
Testing and Quality Assurance
Lork Group enables materials to"speak for themselves,"utilizing rigorous quality testing to verify the conformity of 6Al-2Sn-4Zr-2Mo titanium alloy.
Standard testing scope:
Standard testing scope:
1. Chemical composition: Spectroscopic analysis, gas analysis (O, N, H).
2. Mechanical properties: Room-temperature tensile testing, high-temperature tensile testing (upon request), impact toughness, hardness (approx. 32 HRC).
3. Non-destructive testing (NDT): Ultrasonic testing (UT) to ensure the absence of internal metallurgical defects such as cracks or inclusions.
4. Dimensions and appearance: Thickness tolerance, surface roughness, and flatness inspection.
Lork Group's commitment: All products are supplied with EN 10204 3.1/3.2 certification; on-site inspection by third-party agencies such as SGS or BV is welcomed.
What specifications do you require? Send an inquiry with a single click, and we will reply directly with stock availability or the shortest lead time for custom orders, along with a same-day price quote.
Email:daisy@lorkgroup.com
WhatsApp: +86 175 1308 1871
