Dec 04, 2025 Leave a message

GR12 Titanium Foil vs Other Grades: Crevice Corrosion, Strength and Cost

Why Grade Selection Matters

In chemical processing, marine engineering and other environments containing chlorine, acids or alkalis where crevice corrosion is prone to occur, material stability and corrosion resistance directly determine equipment reliability.

 

GR12 (Ti-0.3Mo-0.8Ni) Core Characteristics

Outstanding crevice corrosion resistance: with 0.3% Mo + 0.8% Ni, GR12 exhibits negligible crevice corrosion risk in 5% Cl⁻ environments at 100°C - far surpassing GR2 pure titanium foil and resolving its inherent crevice-corrosion susceptibility.

Balanced strength and formability: tensile strength reaches ~520 MPa - roughly 50% higher than GR2 - with excellent elongation enabling cold rolling to ultra-thin specifications; formability surpasses strength-focused GR5 foil.

Superior cost-effectiveness: corrosion resistance approaches palladium-bearing GR7 foil without the precious metal, reducing material cost by over 25% - suitable for large-scale industrial applications.

 

Comparison Table

Grade Corrosion Resistance Cost Typical Applications
GR12 (TA10/Gr.12) Excellent crevice corrosion resistance (Mo+Ni synergy) Lower than TA9; high value Chemical heat exchangers, offshore pipelines
GR7 (TA9/Gr.7) Extremely strong (palladium-modified passivation) Higher (palladium cost) Hydrogen fuel cells, high-end medical equipment
GR2 (TA2/industrial pure Ti) Average (prone to pitting in crevice conditions) Lowest General industrial structural components

 

Selection Guidance

GR12: optimum balance for chloride/acid process equipment and offshore service.

GR7: where maximum corrosion resistance justifies the precious-metal cost.

GR2: economical choice for mild, non-crevice service.

 

Products Description

GR12 Titanium Tube

ASTM B337 Gr12 Titanium Tube

High Purity GR12 Titanium Tubing

Ti-0.3Mo-0.8Ni Tube

GR12 Titanium Heat Exchanger Tube

Gr12 Titanium Hydraulic Tube

Titanium Alloy Gr12 Pipe

Titanium Alloy 12 Chemical Processing Pipe

Cold Worked GR12 Titanium Tubing

Seamless GR12 Titanium Tubing

GR12 Titanium Pipe Supplier

Precision GR12 Titanium Pipe

Welded Titanium Gr12 Pipe

GR12 Titanium Capillary Tube

Titanium Gr12 Pipe Stock

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about us

Founded as a leading specialist in the global titanium industry, our company excels in the export and supply of premium titanium products for a diverse range of international applications. We are dedicated to providing high-performance materials that meet the stringent demands of sectors such as aerospace, chemical processing, marine, medical, and automotive engineering.

Our core expertise lies in our comprehensive portfolio of titanium mill products. We supply precision titanium tubes and titanium pipes for critical heat transfer and piping systems. Our inventory includes robust titanium plates, titanium sheets, and titanium slabs for structural and industrial fabrication. For machining and component manufacturing, we offer a full spectrum of titanium rods, titanium bars, titanium billets, and titanium wires. Additionally, we provide fine titanium coils and ultra-thin titanium foil for specialized technological and industrial uses.

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