| 摘要 |
<p>The present invention addresses the problem of producing a gas sensor (1) at a low cost and with prevention against corrosion. The gas sensor (1) is provided with a main metal fitting (13), an outer tube (17) and a non-metallic seal (53). The main metal fitting (13), the outer tube (17) and the non-metallic seal (53) are formed solely from a material having Fe as the main component, containing C at 0.05 to 0.65 wt%, and with a Cr or Ni content of 1 wt% or less.</p> |
