17-4PH, and X5CrNiCuNb16-4 / 1.4542 is provided, among others, in the form of round bars, sheets, flat bars and cold-rolled tapes. The material is widely used in the aerospace, marine, paper, energy, offshore and food industries for heavy-duty machine components, bushings, turbine blades, couplings, screws, drive shafts, nuts, measuring devices.
Alloy 17-4 PH. AISI 630 is a hardenable, martensitic stainless steel with high wear resistance, good corrosion resistance and high yield strength. By combining excellent mechanical properties and high corrosion resistance, AISI 630 can be used in a marine environment, but in standing seawater it is susceptible to crevice corrosion.
thermomechanical cycles and (c) initial microstructure of AISI 630 stainless steel Table 1 Chemical composition of AISI 630 stainless steel utilized in the present study (all in wt.%) C Cr Ni Cu Mn Si Nb Mo S Co W Fe 0.043 14.8 4.12 3.1 0.67 0.52 0.23 0.35 0.
0,60. 3,0 ÷ 5,0. L'AISI 630 (EN 1.4542) è noto anche con il nome commerciale 17-4 PH, ed appartiene alla famiglia degli acciai PH (Precipitation Hardening, o indurenti per precipitazione), e di questo gruppo di acciai inossidabili è il più diffuso. Il 630 rappresenta un ottimo compromesso tra resistenza meccanica e resistenza alla corrosione.
استیل 630 مقاومت به خوردگی این آلیاژ با استیل 304 قابل مقایسه بوده و از سری 400 نیز بیشتر است. همچنین تا دمای 600 درجه فارنهایت (316 درجه سانتیگراد) مقاوم است. میلگرد استیل 17-4ph یا میلگرد استیل 630 در برابر حرارت بالا، عوامل جوی و