Shanghai Bao Steel Co., Ltd. specializes in the production margin of stainless steel 17-4PH, 630 manufacturers, 17-4PH round, 17-4PH plate, 17-4PH wire, 17-4PH forgings, 17-4PH flange, 17-4PH steel belt. 17-4PH alloy is a precipitation hardened martensitic stainless steel, and the level has a high strength, hardness (up to 300 0 C / 5000 C) and anti-corrosion properties. After heat treatment, the mechanical properties of the product more perfect, can reach up to 1100-1300 mpa (160-190 ksi) compressive strength. This class can not be used above 300 0C (572 0F) or very low temperatures, its atmosphere and dilute acid or salt has good corrosion resistance, corrosion resistance and its 304 and 430 the same. Grade: China: 0Cr17Ni4Cu4Nb U.S. AISI: 630 U.S. ASTM: 630 U.S. UNS: S17400 Germany: 1.4542 Japan: SUS 630 Chemical composition: China 0Cr17Ni4Cu4Nb C Si Mn P ≤0.07 ≤1.00 ≤1.00 ≤0.035 S Ni Cr ≤0.030 3.00-5.00 15.5 -17.5 Cu Nb 3.00-5.00 0.15-0.45 mechanical properties: China 0Cr17Ni4Cu4Nb state σ0.2 [MPA] σb [MPA] δ5 [%] φ [%] HBS HRC solid melting - - - - ≤363 ≤38 480 ℃ aging ≥ 1180 ≥1310 ≥10 ≥40 ≥375 ≥40 550 ℃ aging ≥1000 ≥1060 ≥12 ≥45 ≥331 ≥35 580 ℃ aging ≥865 ≥1000 ≥13 ≥45 ≥302 ≥31 620 ℃ aging ≥725 ≥930 ≥16 ≥50 ≥277 ≥28. Corrosion resistance: 17-4 PH corrosion resistance of the alloy is superior to any other standard hardenable stainless steel. In most cases, it was inferior to corrosion resistance 304. If the presence of the risk of stress corrosion cracks, the curing temperature must be higher than the higher of 550? C (1022? F), preferably 590? C (1094? F). Best chloride media tempering temperature is 550? C-1022? F. H2S medium optimum tempering temperature is 590? C-1094? F. This alloy is vulnerable to static seawater pitting or crevice corrosion. It corrosion resistance in petrochemical, food processing and paper industry and 304L grades same. Room temperature resistivity characteristics: 80 μ * .cm specific heat capacity: 460 J.kg-1.K-1 tension coefficient: 77 GPa this alloy is magnetic. Application areas: offshore platforms, helicopter decks, other platforms, food industry, pulp and paper, aerospace (turbine blades), mechanical components of nuclear waste barrel 17-4PH is martensitic precipitation hardening stainless steel, high strength, hardness, better The weldability and corrosion resistance, resistance to hydrogen embrittlement is not sensitive to stress corrosion cracking may occur in some medium. Good processing, good mechanical properties, resistance to general corrosion environments, mainly for high-strength corrosion resistant parts with certain requirements. Po-edge company mainly production and supply of high-temperature alloy grades are: (GH2132, GH3030, GH3039, GH3128, GH4145, GH4169, GH4180) Inconel alloys: (Inconel600, Inco601, Inconel625, Inconel690, Inconel718, Inconel617, Inconel725) Inconel Loy alloys: (Incoloy800, Incoloy800H, Incoloy800HT, Incoloy825, Incoloy925, Incoloy926, Incoloy DS) Hastelloy: (Hastelloy C-276, Hastelloy C, Hastelloy X, Hastelloy B, Hastelloy B-2) Monel: (Monel400 , MonelK500, Monel450) corrosion resistant alloys: (NS111, NS112, NS142, NS312, NS313, NS321, NS333, NS334, NS335, NS336) precision alloy: (Cr20Ni80,1J50,1J79,3J53,4J29,4J36) special stainless :( 904L, A4 steel, U3 steel, Invar36, Alloy20Cb-3, Al-6XN, 253MA, XM-19,310Si, 316LMod, 2205,2507, S31254,15-5PH, 15-7PH, 17-7PH, 17-4PH) especially large thick pipe for advantage.