Why Tantalum Sheets Are Your Go-To Material for Precision Engineering

If you’re designing components for aggressive chemical environments or high-precision manufacturing, tantalum sheets (FTa1 grade) should be at the top of your list. Certified under China’s GB/T 26037-2010 standard, these sheets combine exceptional corrosion resistance with unmatched formability. But what makes them so reliable? Let’s dive into the details.

1. Key Properties That Define High-Quality Tantalum Sheets

According to GB/T 26037, powder metallurgy tantalum sheets must meet strict criteria:

• Purity: ≥99.95% Ta, with ultra-low impurities (e.g., Fe <0.01%, C <0.01%).
• Mechanical Strength: Tensile strength ≥207 MPa, elongation ≥25% for deep-drawing flexibility.
• Formability: Cup Erichsen cupping index≥7.5 mm (per GB/T 4156), ensuring smooth deformation without cracking.
• Surface Quality: No cracks, oxidation, or folds—minor roll marks permitted but controlled.

2. Applications

• Chemical Processing: Resists sulfuric/nitric acid in reactor linings.
• Textile Machinery: Used in spinneret for synthetic fiber production.
• Medical Devices: Biocompatible sheets for surgical tool housings.
• Aerospace: Thin sheets (0.1–0.3 mm) for fuel system components.

3. How to Select Tantalum Sheets for Your Project

Follow this checklist when sourcing sheets:

1. Verify Certifications: Ensure compliance with GB/T 26037 for chemical composition and mechanical properties..
2. Check Dimensions:
   • Thickness tolerance: ±0.015 mm for 0.1–0.2 mm sheets.
   • Flatness ≤3% to avoid assembly issues.
3. Prioritize Surface Finish: Opt for annealed to extra full hard (M) sheets with bright finish for corrosion resistance.

4. Quality Assurance: Testing Tantalum Sheets for Reliability

Per GB/T 26037, rigorous tests ensure performance:

1. Erichsen Test: Validates deep-drawing capability under hydraulic pressure.
2. Grain Size Analysis: Ensures uniformity (≥7.5级) for consistent mechanical behavior.
3. HV: Confirms hardness between 95–130 HV for durability.

5.Elevate Your Manufacturing 

Whether you’re shaping spinning jet or corrosion-resistant linings, FTa1 tantalum sheets offer unmatched reliability. By adhering to GB/T 26037 standards and prioritizing material purity, you’ll achieve precision and longevity in even the harshest environments.