Why is TC4 titanium alloy sheet the preferred material in the aerospace field?
Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-07-15
[Picture: TC4 medium thick titanium alloy plate physical picture, surface sandblasted;pure
Titanium PlateOptional thickness 3-10mm]
Why can TC4 titanium alloy plate be widely used in aerospace equipment manufacturing?The overall performance and operation safety of aircraft are closely related to the selection of structural materials.TC4, Ti-6Al-4V titanium alloy, belongs to α+β dual-phase titanium alloy, and is also the largest titanium alloy brand in the world.Relying on balanced and outstanding comprehensive mechanical properties, TC4 medium-thick titanium alloy plate is widely used in aircraft main body structural parts, engine compressor disk, Key components such as space rocket casings.In this paper, combined with Baoji titanium valley industry practice, the core performance characteristics of TC4 titanium alloy sheet are deeply disassembled.
1. Ultra-high specific strength to achieve lightweight equipment
The density of TC4 titanium alloy is only 60% of steel, and the tensile strength can reach more than 900MPa.Specific strength is the core index of aviation material selection, On the premise of meeting the same structural strength standard, Using TC4 titanium alloy sheet can significantly reduce the component weight.After the aircraft has lost weight,, Effectively reduces fuel consumption, Lift payload, It is a high-quality structural material replacing traditional high-strength structural steel.Lightweight advantage is also the core reason for the large selection of TC4 titanium alloy in the aerospace industry.
2. Salt spray corrosion resistance, stable heat resistance
High altitude humid environment, coastal salt fog marine environment, metal structures will produce continuous corrosion.TC4 titanium alloy has stable chemical properties and outstanding pitting corrosion resistance and stress corrosion resistance under such conditions.
Heat resistance, TC4 sheet can be used stably for a long time under 400℃, Higher short-term temperature tolerance, It can match the requirements of high temperature working conditions of aeroengine and peripheral supporting components., Both high temperature strength and oxidation resistance.
3. Excellent processing adaptability
TC4 medium-thick titanium alloy plate with thickness greater than 4.75 mm, Generally, vacuum melting and multi-pass hot rolling process are used for production, The internal metallographic structure of the finished product is uniform and fine.sheet metal stamping, Good welding workability, The mechanical strength can also be further improved by solution aging heat treatment, Flexible adaptation to technical index requirements of different equipment items, Convenient for subsequent machining, molding, Welding and other processes.
4. TC4 medium thickTitanium Platetypical application scenarios
aviation industry, Aircraft landing gear support beam, wing body structure, engine fan disk, Core load-bearing components such as compressor blades.
Aerospace industry: rocket fuel tank, satellite bearing barrel, missile body structure.
High-end equipment field: deep-sea detector pressure shell, nuclear power heat exchanger and other high-pressure anti-corrosion components.
TC4 Titanium PlateMaterial selection and supply description
Relying on Baoji China Titanium Valley Industrial Resources, TC4 (Gr5) medium thick titanium alloy plate standing stock resources, Specifications cover the thickness range from 6mm to 60mm, At the same time can be customized processing.Each batch of products can be matched with a third-party material test report to ensure that the material composition and mechanical properties can be verified.Products for aerospace, marine engineering, chemical high-end equipment industry, to provide special metal materials supporting solutions.
TC4 titanium alloy sheet and TA2 pure
Titanium PlateThere is a clear distinction between use scenarios.TA2 Pure
Titanium PlateFocus on all kinds of strong corrosion chemical conditions, TC4 relies on high strength and toughness, Main aerospace, Scenes with strict strength requirements such as deep sea pressure.When selecting materials for the project, it is necessary to comprehensively judge the brand according to the medium, temperature and pressure.
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Data source: Baoji Titanium Industry Research Institute, Titanium Alloy Material Engineering Manual
disclaimer, Properties of TC4 titanium alloy sheet subjected to heat treatment process, specification, Influence of processing state, Suggestions on project material selection combined with working conditions to do mechanical and flaw detection, Important aerospace projects shall be subject to the acceptance of all materials according to the corresponding national standards.