Tantalum Ta-2.5W (UNS R05252) Sample MTC
Access a comprehensive, professionally formatted Material Test Certificate according to EN 10204-2004: 3.1 for Tantalum Ta-2.5W (ASTM B365 UNS R05252). Inspect the exact documentation your QA and engineering teams will receive with every specialty, highly corrosion-resistant fastener order from Ananka Fasteners.
What's Inside This Tantalum Ta-2.5W MTC Certificate
This sample mill test certificate mirrors the rigorous QA documentation package standard for our Tantalum-Tungsten alloy fasteners, utilized in chemical processing environments where both extreme acid resistance and enhanced structural strength are required.
- Full Traceability: Certified with TC No.: S74/26-XX and corresponding ASTM B365 specifications for tantalum alloy rod and wire.
- Tungsten Enhanced Strength: Detailed breakdowns verifying the 2.5% nominal Tungsten (W) addition. This specific alloying increases the yield strength by roughly 25-30% over pure unalloyed Tantalum without sacrificing corrosion resistance.
- Trace Gas Controls: Explicit verification of tightly controlled interstitial elements like Oxygen (O), Nitrogen (N), and Hydrogen (H) to prevent high-temperature embrittlement.
- Mechanical Properties (Annealed): Comprehensive reporting of Tensile Strength (325.40 MPa), Yield Strength (245.50 MPa), Elongation (28.50%), and Hardness (85 HRB), demonstrating an ideal balance of strength and ductility.
- Quality Compliance: 100% visual inspection carried out and verified free from defects and radioactive contamination.
Live Preview: Tantalum Ta-2.5W (Annealed) MTC Data
Review the standard parameters and layout before downloading the full document.
TC Number
S74/26-XX
TC Date
08.07.20XX
Material Spec
ASTM B365 UNS R05252 Annealed
Bar Shape / Size
Hex Bar / 12 mm
Dimensions / Item
Hex Head Bolt M12 x 50 mm
Quantity
10.00 NOS
Chemical Composition %
| W | Nb | O | C | N | Fe | H | Ta |
|---|---|---|---|---|---|---|---|
| 2.65 | 0.025 | 0.008 | 0.004 | 0.003 | 0.002 | 0.0005 | Rem |
| 2.00 - 3.50 | Max: 0.10 | Max: 0.015 | Max: 0.010 | Max: 0.010 | Max: 0.010 | Max: 0.0015 | Rem |
Mechanical Properties
| TENSILE STRENGTH (Mpa) | YIELD STRENGTH 0.2% Offset (Mpa) | % ELONGATION (GL-50mm) | HARDNESS (HRB) |
|---|---|---|---|
| 325.40 | 245.50 | 28.50 | 85 |
| Min: 275 | Min: 195 | Min: 20 | Max: 105 |
Standard References & Compliance
Our MTC certificates map to the demanding industrial standards for specialty alloy fasteners. The test reports confirm compliance with As Per ASME/ASTM B365 UNS R05252 with respect to the tests carried out.
| Standard / Requirement | Confirmation on Certificate |
|---|---|
| Visual Inspection | 100% visual inspection carried out & found free from defects. |
| Safety Requirements | Material is free from radioactive contamination. |
| Weld Repairs | No weld repair Perform. |
| Dimensional Accuracy | All Dimensions are as per PO Specification. |
Certification Details
We confirm that above mentioned Items was Manufactured, Sampled, Tested and Inspected in accordance with the subjected Customer's Purchase Order and as applicable Drawings, Material Specifications, Codes & Standards and the results of the items have been determined to meet the users' requirements.
Documentation Standard
- EN 10204-2004: 3.1 Standard
- Free from radioactive contamination
- Certified ISO 9001: 2015 Company
Alloying & Heat Treatment
- 2.5% Nominal Tungsten Addition
- Vacuum Annealed Condition for Ductility
Testing Conditions
- Chemical, Mechanical & hardness test carried at room temperature 25°C
- Interstitial Gas Analysis Performed
Technical FAQs — Tantalum Ta-2.5W MTC Certificate
Why add 2.5% Tungsten to Tantalum?
Pure Tantalum is incredibly corrosion-resistant but relatively soft and mechanically weak. By alloying it with approximately 2.5% Tungsten (Ta-2.5W), the material gains a significant increase in tensile and yield strength (roughly 25-30% stronger). This makes it far more suitable for heavily torqued fasteners and structural components in chemical processing plants while maintaining the identical glass-like corrosion resistance of pure Tantalum.
What environments require Ta-2.5W fasteners?
These fasteners are utilized in the most severe chemical environments where even high-performance alloys like Titanium, Zirconium, or Hastelloy fail. This includes hot concentrated hydrochloric, sulfuric, and nitric acids, as well as high-temperature vacuum furnace applications.
Are the materials free from radioactive contamination?
Yes, the document strictly states that the material is free from radioactive contamination and undergoes a 100% visual inspection to ensure it is free from defects.