Housing material of an exhaust gas treatment component

Abstract

A housing of an exhaust gas treatment component is formed of a material having the following composition: iron: between 50 and 60 wt. %, nickel: between 16 and 24 wt. %, chromium: between 15 and 18 wt. %, aluminium: between 4 and 8 wt. %, and silicon: between 0.5 and 1.5 wt. %.

1 . A housing of an exhaust gas treatment component, comprising a material having the following composition:
 iron: 50 to 60% by weight,   nickel: 16 to 24% by weight,   chromium: 15 to 18% by weight,   aluminum: 4 to 8% by weight,   silicon: 0.5 to 1.5% by weight.   
   
   
       2 . The housing according to  claim 1 , wherein the composition is varied with regard to at least one of the following constituents:
 iron: 56 to 58% by weight,   nickel: 18 to 22% by weight,   chromium: 16 to 18% by weight,   aluminum: 5 to 7% by weight,   silicon: 0.8 to 1.2% by weight.   
   
   
       3 . The housing according to  claim 1 , wherein the composition is varied with regard to at least one of the following constituents:
 iron: 56% by weight,   nickel: 20% by weight,   chromium: 17% by weight,   aluminum: 6% by weight,   silicon: 1% by weight,   and wherein a tolerance range of 5% is permissible with regard to at least one constituent.   
   
   
       4 . The housing according to  claim 1 , wherein said housing has a wall thickness of less than 1 mm. 
   
   
       5 . The housing according to  claim 1 , wherein said housing has a wall thickness of less than 0.8 mm. 
   
   
       6 . A housing of an exhaust gas treatment component, comprising a material consisting of the following composition:
 iron: 50 to 60% by weight,   nickel: 16 to 24% by weight,   chromium: 15 to 18% by weight,   aluminum: 4 to 8% by weight,   silicon: 0.5 to 1.5% by weight.   
   
   
       7 . The housing according to  claim 6 , wherein the composition consists of the following constituents:
 iron: 56 to 58% by weight,   nickel: 18 to 22% by weight,   chromium: 16 to 18% by weight,   aluminum: 5 to 7% by weight,   silicon: 0.8 to 1.2% by weight.   
   
   
       8 . The housing according to  claim 7 , wherein the composition consists of the following constituents:
 iron: 56% by weight,   nickel: 20% by weight,   chromium: 17% by weight,   aluminum: 6% by weight,   silicon: 1% by weight,   and a tolerance range of 5% by weight is permissible with regard to at least one constituent.