Solder wire special for nuclear power 20-control chrome steel
A technology of welding wire and chromium steel, which is applied in the field of special welding materials for nuclear power 20-control chromium steel, can solve the problems of poor fluidity of the molten pool, unfavorable welding quality, and high requirements for welders' operation level, so as to achieve the effect of ensuring quality and improving FAC resistance performance
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[0020] In order to make the purpose of the invention, the technical solution and its beneficial technical effects clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.
[0021] In order to cooperate with the 20-control chromium steel, the inventor has obtained the chemical composition of the special welding wire for the nuclear power 20-control chromium steel of the present invention, the chemical composition of the deposited metal of the welding wire (the balance is Fe) and the design value of mechanical properties through many experiments. As shown in Table 4-6.
[0022] Table 4. Design value of chemical composition of special welding wire for 20-chrome steel / wt%
[0023] grade
C
Si
mn
...
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