17-4ph-chinese（17 - 4ph - chinese）.docVIP

17-4ph-chinese（17 - 4ph - chinese） 17-4PH technical specification 17-4PH alloy is precipitation, hardening and martensitic stainless steel. chemical composition Typical values (Weight%) 17-4PH alloy is composed of copper, niobium columbium / a sink Precipitation, hardening and martensitic stainless steel. This class has high strength and hardness (up to) 300O, C/572o, F) and corrosion resistance. After heat treatment, the mechanical performance of the product is more Perfection can reach up to 1100-1300 MPa Compressive strength (160-190, Ksi). This level cannot be used higher than 300O C (572o) F) or at very low temperatures, it acts on the atmosphere and dilution Acid or salt has good corrosion resistance, and its Corrosion resistance is the same as 304 and 430. application area Offshore platforms, helicopter decks, and other platforms Food industry Pulp and paper industry Aerospace (turbine blades) Mechanical components Nuclear waste barrels standard ASTM...... A693 grade 630 (AMS 5604B) UNS S17400 EURONORM.. 1.4542 X5CrNiCuNb 16-4 AFNOR...... Z5, CNU, 17-4PH DIN...... 1.4542 Corrosion resistance The corrosion resistance of 17-4 PH alloy is better than that of its alloy Any of its standard, hardened stainless steel. stay In most cases, its corrosion resistance is not inferior In 304. If there is a wind of stress corrosion cracking Higher ripening temperature must be higher than 550oC (1022oF) preferably for 590oC (1094oF). The optimum tempering temperature in the chloride medium is 550oC-1022oF. The optimum tempering temperature in H2S medium is 590oC- 1094oF. This alloy is vulnerable to corrosion in static sea water Corrosion of cracks or cracks. It is in the petrochemical, food processing and paper industry The corrosion resistance is the same as the 304L grade. C, Cr, Ni, Cu, Nb/Cb, Mn 0.04, 16.5, 4.5, 3.3, 0.3, 0.7 PREN (%cr+3.3%Mo+16%N) = 17 mechanical properties Room temperature characteristics (longitudinal) Refer to ASTM A693 standard for hot rolled plate,