Titanium Grade 7 (Ti-0.2Pd) is an alpha-type titanium alloy. Thanks to the addition of palladium, it performs exceptionally well in high-temperature, high-concentration chloride-containing media and offers outstanding resistance to crevice corrosion, making it suitable for applications in the chemical industry and anti-corrosion engineering. Titanium Grade 7 is considered the "gold standard" among corrosion-resistant titanium alloys for the chemical industry, being particularly well-suited for environments involving reducing acids such as hydrochloric acid and sulfuric acid.
Corrosion Resistance: The addition of palladium gives it corrosion resistance in reducing acids (HCl, H₂SO₄) comparable to that of tantalum (Ta) and far superior to that of commercially pure titanium (such as Grade 2). It exhibits excellent resistance to chloride ion (Cl⁻) stress corrosion cracking (SCC).
Mechanical Properties: Its strength is slightly higher than that of Grade 2, yet it retains good ductility.
