德国FISCHER便携式电磁感应铁素体测试仪的特点：

• 在现场或实验室中快速、无损地测量铁素体含量
• 测量范围： 0.1 - 80% Fe 或 0.1 - 110 FN
• 可以以铁素体百分比“%Fe”或是以铁素体数“FN”作为测量单位
• 根据 ISO 17655标准或“巴塞尔标准”进行测量
• 校准用标准片可溯源到 TWI 二级标准，符合标准ISO 8249 以及 AWS A4.2M 的要求。
• 可以使用客户自有的标准进行校准.

德国FISCHER便携式电磁感应铁素体测试仪典型应用领域

测量以下材料内的铁素体含量：

• 双相钢  
• 奥氏体焊缝（钢管或钢片上）
• 有奥氏体铬合金钢焊覆层的普通钢（锅炉、容器）

Chemical, energy and processing plants are often
subject to heat, aggressive media and high pressure.
These circumstances demand steel with high corrosion
and acid resistance that are resilient even at high
temperatures. If the ferrite content is too low, then
the welded material is susceptible to hot-cracking, if
the ferrite content is too high, the toughness, ductility
as well as the corrosion resistance of the steel are
reduced. For duplex steel, a ferrite deficit in the area
of the weld seam results in stress corrosion cracking
and reduction in strength.