Nuts (SAE)

Contact Us

Benefits

Tantaline ® treatment uses high-end Chemical Vapor Deposition techniques to deposit a uniform, diffusion bonded layer of corrosion resistant tantalum onto very intricate shapes and smaller sizes of fittings while maintaining critical tolerances. Tantaline® treated fittings offer better corrosion resistance than austenitic stainless steels which cannot fight stress corrosion, chloride attack, and especially sulfide cracking. The metallurgical properties of the tantalum surface combined with the uniform and conformal CVD layer results in superior acid resistant fittings that have excellent compatibility in most aggressive acids and can be offered with economical pricing and short lead-times.

Use

MARKET
TYPICAL PROCESSES
Chemical Processing
Hot acids, wet and dry chlorine, sulfur compounds, sour gases containing hydrogen sulfide (H2S) compounds
Oil & Gas
Acid gases (CO2, H2S, SO2), ammonia (NH3), hydrogen cyanide (HCN), alkylation, and amine derivatives
Pharmaceutical
Oxidizing agents including hydrogen peroxide (H2O2), bromine (Br), chlorine (Cl), nitration, and various cleaning chemistries
Semiconductor
Strong HCl etchants, corrosive Nital (alcohol + nitric acid), byproducts of Silicon deposition process
Mining
Strong acid leaching, pressure oxidation, heap leaching
Marine
Corrosive sea water with chlorides, dissolved oxygen (O2), microbial corrosion

 

Key Technical Information 

HCI

Hastelloy®* Inconel®**, Zirconium, Titanium, and Stainless Steel valve components are susceptible to Stress Corrosion Cracking (SCC) and pitting especially in hot acids like HCl. Tantaline® treatment offers the following beneficial characteristics:

  • Chemically resistant to SCC and pitting in many aggressive media and environments.
  • Tantalum layer remains passivated and inert to corrosion under high temperature (>200⁰ C) acidic conditions including concentrated hydrochloric acid (HCl) and sulfuric acid (H2SO4).***
  • Superior corrosion resistance against wet, dry chlorine atmospheres, and other chlorinated environments.

*Hastelloy® is a registered trademark of Haynes International.
**Inconel® is a trademark of Special Metals Wiggin Limited.
***FJ, H. (n.d.). Properties of Tantalum for Applications in the Chemical Process Industry