1、 Classified by alloy composition

1. Industrial pure titanium ingots: mainly TA1 and TA2, with impurity content ≤ 0.3%, focusing on corrosion resistance and plastic processing performance;

2. Titanium alloy ingot:

Alpha titanium alloy ingot: excellent high temperature resistance, suitable for high temperature components above 600 ℃;

α+β - type titanium alloy ingot: with strong comprehensive performance, used for aviation structural components;

β - type titanium alloy ingot: ultra-high strength, used for aerospace fasteners and armor materials.

2、 Classified by purpose and form

Universal structural ingot: circular or rectangular cross-section, used for rolling plates and bars;

Customized ingot with irregular shape: prepared through forging process, suitable for complex components of special equipment.

Domestic grades: TA1, TC4, TC11 TB8

International grades: Gr1, Gr5, Beta-C.

1. Raw material processing:

Sponge titanium is crushed into 0.83-25.4mm particles and mixed evenly with alloy elements;

2. Melting process:

Vacuum consumable arc furnace: mainstream process, requiring 2-3 melting cycles to eliminate segregation, with impurity content ≤ 0.1%;

Plasma arc melting: suitable for high-purity titanium ingots, oxygen content can be controlled below 0.08%;

3. Ingot molding:

The weight of the ingot is usually 3-15 tons, and the diameter can reach 1000mm;

4. Surface treatment:

Remove the oxide layer by turning, with a roughness Ra ≤ 6.3 μ m.

High specific strength: The TC4 titanium ingot has a specific strength of 22.5, which is 1.3 times that of aluminum alloy;

Extreme temperature resistance: TA7 titanium ingot has a strength of ≥ 450MPa at 600 ℃, and TB8 titanium ingot can maintain toughness at -196 ℃;

Corrosion resistance: The annual corrosion rate of industrial pure titanium ingots in seawater is less than 0.01mm;

Process complexity: precise oxygen control is required for melting, and the thermal processing window is narrow.

Aerospace: aircraft engine blades, rocket fuel tanks;

Weapon equipment: armored vehicle protective layer, missile shell;

Chemical energy: chlor alkali electrolysis cells, nuclear reactor pressure vessel liners;

Ocean engineering: deep-sea detector shells, seawater desalination devices;