The following are some mobile phone models and titanium alloy grade information that use titanium alloys at home and abroad:
First. Chinese brands
1. Huawei Mate 70 series
– Application area: High-gloss titanium middle frame (basalt structure)
– Brand speculation:
– Titanium-aluminum composite material (combining titanium and aluminum through hot isostatic pressing technology).
– Involving TA1/TA2 pure titanium or TC series titanium alloy, special process treatment to improve hardness and gloss.
– Features: Glossiness is 3.5 times higher than matte titanium, wear resistance and drop resistance are significantly enhanced, and high-gloss titanium middle frame is mass-produced for the first time.
2. OPPO Find N5
– Application part: titanium alloy dome hinge (3D printing)
– Brand speculation:
– Using TC4 titanium alloy (Ti-6Al-4V), manufactured by 3D metal printing technology, the thickness is only 0.15mm.
– Features: The hinge thickness is reduced by 26%, the drop resistance is increased by 100%, and it has passed the German Rhine non-sense crease certification.
3. Xiaomi 14 Pro Titanium Special Edition
– Application part: middle frame
– Brand: TA-2 pure titanium (purity 99%)
– Features: The surface is treated with brushed texture + nano coating, anti-fingerprint and wear-resistant, and the middle frame and high-strength aluminum alloy are composited to enhance the structural strength.
Second. International brands
1. Apple iPhone 15 Pro series
– Application parts: middle frame and body
– Brand speculation:
– Adopt Ti-6Al-4V titanium alloy (TC4) or Ti-6Al-7Nb medical grade titanium alloy, the specific composition is not disclosed.
– Features: The world’s first all-titanium metal middle frame mobile phone, about 10% lighter than stainless steel, with improved hardness and support for no-cut design.
2. Samsung Galaxy S24 Ultra
– Application parts: titanium alloy frame
– Brand speculation: Not clearly disclosed, it may be high-strength titanium alloys such as Ti-6Al-4V or Ti-10V-2Fe-3Al.
– Features: The first use of titanium alloy in an Android flagship to improve scratch resistance, and the weight is similar to the previous generation (232g).
Third. Other brands
– Honor Magic Vs2: uses Luban titanium hinge, the specific grade is not disclosed, combined with aerospace-grade rare earth magnesium alloy to improve strength.
– Essential Phone PH-1 (2017): An early model that tried a pure titanium middle frame, the grade is Grade 5 titanium alloy (TC4).
Fourth. Summary and precautions
1. Brand transparency: Most manufacturers have not fully disclosed the specific composition of titanium alloys, and some information is based on industry speculation.
2. Process differences:
– Huawei and Apple use traditional titanium alloy processing (such as CNC and polishing);
– OPPO and Xiaomi try 3D printing or pure titanium composite technology.