2507钢板#双相不锈钢 耐腐蚀 耐磨性钢板
2507 is a kind of ferrite austenite (two-phase) stainless steel, it has integrated many ferritic steel and austenitic steel is the most beneficial properties, since the 2507 steel chromium and molybdenum content is very high, so has excellent resistance to corrosion, crevice corrosion and uniform corrosion. Two-way microstructure ensures that the steel has the ability of high resistance to stress corrosion cracking, and the mechanical strength is high.
2507双相不锈钢的强度及抗腐蚀能力较强,主要用于化学加工、石油化工和海底设备。它具有较强的抗氯化物腐蚀能力,较高的导热性和较低的热膨胀系数。较高的铬、钼及氮含量氏它具有很高的抗斑蚀、裂隙腐蚀及一般腐蚀的能力。它的冲击强度也很高,2507合金不适宜用在高于570℃的温度环境下,长期处在这样的环境下,它的韧性会降低。
其化学成分和机械性能如表1、2所示。
2507化学成分(%)
碳:(C) ≤0.03
锰:(Mn) ≤1.2
硅:(Si) ≤0.08
硫:(S) ≈0.02
磷:(P) ≤0.035
铬:(Cr) ≈24.0~26.0
镍:(Ni) ≈6.0~8.0
铜:(Cu)≤0.5
氮:(N) ≈0.24~0.32