Grade 4 titanium plates belong to industrial pure titanium, with low impurity element content, primarily composed of titanium (Ti), allowing a certain amount of oxygen (O) and iron (Fe). The specific content meets the relevant standard ASTM B265: which covers the chemical composition, mechanical properties (such as tensile strength, elongation), dimensional tolerances, and surface quality requirements for titanium and titanium alloy strips, sheets, and plates. Grade 4 is defined as unalloyed titanium (Unalloyed Titanium), suitable for aerospace, medical, and marine engineering applications. ASTM B348: specifies standards for titanium alloy bars and wires. ASTM F67: sets standards for medical pure titanium materials. AMS 4901/4921: an aviation-grade titanium plate standard, requiring high strength and corrosion resistance. MIL-T-9046J/9047G: military standards applicable to aircraft engine components and structural parts.
Product parameter
Density: 4.51 g/cm³ (approximately 57% of steel).
Melting point: 1660°C (β phase transition temperature is about 882.5 °C).
Thermal conductivity: 16.95 W/m·K (low thermal conductivity, suitable for insulation applications).
Elastic modulus: 105-120 GPa (lower than steel, excellent energy absorption properties).
Tensile strength (Rm): ≥550 MPa.
Yield strength (Rp0.2): ≥483 MPa.
Elongation (A): ≥15%, reduction of area ≥25%
Processing technic
Thickness: Thin plates: 0.2-5.0 mm. Medium-thick plates: 5.0-30 mm.
Extra-thick plates: 30-80 mm.
Width: Standard range: 500-1400 mm.
Special requirements: Customizable to 2500 mm.
Length: Standard cutting: 1000-6000 mm.
Special specifications: Up to 6000 mm. Annealing treatment restores plasticity (recommended temperature: 650-750℃).
Sandblasting (Ra 3.2-6.3 μm): Increases surface roughness and enhances coating adhesion.
Pickling: Removes oxide layer and improves corrosion resistance.
Sandblasting (Ra 3.2-6.3 μm): Increases surface roughness and enhances coating adhesion. Pickling: Removes oxide layer and improves corrosion resistance.
Main application areas of Grade 4 titanium plate
Aerospace: aircraft frames, engine components (such as compressor blades).
Marine engineering: seawater desalination equipment, ship structural parts.
Chemical and energy: chemical treatment reactors, desalination plant piping.
Medical and papermaking: medical implants (must comply with ASTM F67), corrosion-resistant components of papermaking machinery.
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