... in: Tube,Pipe, Sheet, Strip,Bar, Rod and Wire. Detailed Description Characteristics:1.Kovar has a wide usage in ... bonded to hard glass envelopes. These parts are used for such devices as power tubes and X-ray tubes, ... 516.8~17.8Balance 2.The tensile strength of wire in line with the provisions of Table 2Status ... 20°Cin the hydrogen,hold for 1,re-heat to1100±20°C, hold for 15min;cooled to 200°C at ...