P-containing corrosion resistant steel with high weldability

Abstract

Abstract PURPOSE: To obtain the titled corrosion resistant steel being excellent as a welded structure material under corrosive environment by sea water and atmosphere by extremely reducing a content of C, N of a P, N containing steel or by adding Mo, Cu, Ni or the like in a specified amount, as well as adding Nb, V, Ti or the like in a specified amount. CONSTITUTION: A P-containing corrosion resistant steel with high weldability is obtained from a material consisting of, C; 0.07 or less, Si; 1 or less, Mn; 2.5 or less, P; 0.03W0.2, Al; 0.003W0.2, N; 0.003 or less and a balance of Fe, each in wt% basis. Because, C and N content is extremely lowered, weld cold cracking and joint brittleness are not generated. Moreover, one or more of Mo, Cu, Ni, Co, Cr, W may be added in a total amount of 4% or more, or 0.2% or less of one or more of Nb, V, Ti, Zr, Ta, B, rare earth elements, Ca, Mg, Te, Se may be added moreover. The above described two additives may be optionally added together. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Satoshi Kado
• 👤 Tsuneyasu Watanabe
• 👤 Makoto Sato
• 👤 Ken Kanetani
• 👤 Kazuhiro Masuda

Bibliographic Details