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精密無縫管真偽的鑒別方法

精密無縫管真偽的鑒別方法一、磁性試驗磁性試驗是差異退火奧氏體精密無縫管與鐵素體不銹管的簡略的方法。奧氏體不銹鋼是非磁性鋼，但經大壓下冷加工后將具有輕度的磁性;而樸實的鉻鋼和低合金鋼都是強磁性鋼。…

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