1、 J3455的化学成分是: C, Si, Mn, P, S, Cr, Ni, Mo, W, V, Ti, Al, Cu, Ti, Nb, V, Zr, Nb, Mo, W, Mo, Ti, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W, Mo, W, Ti, Nb, V, Zr, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W, Mo, W, Ti, Nb, V, Zr, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W, Mo, W, Ti, Nb, V, Zr, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W, Mo, W, Ti, Nb, V, Zr, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W, Mo, W, Ti, Nb, V, Zr, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W, Mo, W, Ti, Nb, V, Zr, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W, Mo, W, Ti, Nb, V, Zr, Nb, Ti, Zr, Ni, V, Ti, Al, Si, W