1. Definition and classification

Titanium coil is a continuous rolled sheet/strip of titanium processed through rolling technology, with a thickness typically ranging from 0.1 to 5mm and a width of up to 2000mm. According to the material, it can be divided into:

Pure titanium tape: Strong corrosion resistance, used in chemical, medical and health industries.

Titanium alloy coil: High strength or special function, used in aerospace and military industries.

2. Core Features

Lightweight: With a density of only 4.51g/cm ³ and low hardness, it requires alloying reinforcement;

Corrosion resistance: resistant to seawater, acid and alkali, chemical equipment lifespan increased by 5-10 times, not resistant to hydrofluoric acid and concentrated sulfuric acid;

Biocompatibility: non-toxic, anti rejection, suitable for human implants, higher cost than stainless steel;

High temperature stability: Some alloys can work for a long time at 500 ℃, while pure titanium has a rapid decrease in high-temperature strength;

Formability: capable of stamping, welding, bending, compatible with multiple processing techniques, with large rebound, requiring specialized molds.

3. Production process flow

Sponge titanium → Melting (vacuum arc furnace) → Ingot casting → Hot rolling (β phase zone) → Cold rolling → Annealing → Surface treatment (acid washing/polishing) → Slitting and rolling strip

Key process control points:

Hot rolling temperature: It should be above the β phase transition point to avoid cracking.

Cold rolling deformation: usually controlled at 30%~70%, excessive deformation can lead to embrittlement.

Annealing process: Relieve stress and restore plasticity.

4. Application areas and market demand

Chemical equipment: reactor liner, heat exchanger tube plate;

Aerospace: Aircraft skin, engine insulation layer

Electronic consumer goods: phone frame, heat sink;

New Energy: Hydrogen Fuel Cell Bipolar Plate