目前在国内超级双相钢的主要牌号2507(S32750)

目前在国内超级双相钢的主要牌号2507(S32750)

2507（UNS S32750）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、钼及氮含量使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。

At present, the main brand of super dual phase steel in China is 2507 (S32750)

At present, the main brand of super dual phase steel in China is 2507 (S32750)

2507 (UNS S32750) duplex stainless steel has strong strength and corrosion resistance. It is mainly used in chemical processing, petrochemical industry and submarine equipment. It has strong chloride corrosion resistance, high thermal conductivity and low coefficient of thermal expansion. The high content of chromium, molybdenum and nitrogen makes it have high resistance to spot corrosion, crack corrosion and general corrosion. Its impact strength is also very high. 2507 alloy is not suitable to be used in the temperature environment higher than 570 ℃. Its toughness will be reduced in such environment for a long time.