Forging temperature of different grades of titanium alloys

Titanium alloys are widely used in many fields because of their excellent performance, and different grades of titanium alloys have different temperature requirements in the forging process. The following are the forging temperature specifications and process considerations for several common titanium alloys:

TA7 titanium alloy:
α+β phase transition temperature: 930～970℃ β
Phase transformation temperature: 1040～1090℃
Ingot opening forging temperature: 1180～900°C
Allowable deformation degree：30～50%
TA13 titanium alloy:
β phase transition temperature：895±10℃
Ingot opening forging temperature：1050～750℃
Pre-forming temperature：950～700℃
Hammer forging temperature：880～700℃
TC4 titanium alloy (commonly used):
α+β phase transition temperature：980～1010℃
Ingot opening forging temperature：1200～850℃
Pre-forming temperature：1000～800℃
Hammer forging temperature：980～800℃
TC6 titanium alloy:
α+β phase transition temperature：980±20℃
Ingot opening forging temperature：1150～850℃
Pre-forming temperature：1050～800℃
Hammer forging temperature：950～800℃
TC11 titanium alloy:
α+β phase transition temperature：1000±20℃
Ingot opening forging temperature：1200～900℃
Pre-forming temperature：980～800℃
Hammer forging temperature：980～850℃
TB6 titanium alloy (near β-type):
α+β phase transition temperature：800±15℃
Ingot opening forging temperature：1150～850℃
Pre-forming temperature：840～700℃
Hammer forging temperature：800～680℃
In the forging process, in addition to the strict control of forging temperature, it is also necessary to comprehensively consider a number of aspects such as ingot preparation, heating mode, forging process, heat treatment process, machining, grinding, ingot number management, ultrasonic flaw detection, sawing and sampling. The forging process performance of titanium alloy is significantly affected by alloying elements and impurity elements, so its chemical composition and impurity content must be strictly controlled.
In addition, the national standard "Titanium Alloy Isothermal Forging Process Specification" (GB/T 38964-2020) provides detailed guidance and specifications for the process of titanium alloy isothermal forging to ensure that the performance and quality of forgings meet the standard requirements. In the process of titanium alloy forging, these standards and specifications should be strictly followed to ensure the quality and performance of the final product.