VEHICLE EXHAUST SYSTEMS. A SURVEY OF CONSTRUCTION MATERIALS USED

AVGASSYSTEM FOER PERSONBILAR. EN OEVERSIKT OEVER EGENSKAPER HOS MATERIAL FOER AVGASSYSTEM

The materials used for vehicle exhaust systems are 1. Painted or unpainted carbon steel. This has poor corrosion resistance. Its life can be increased by increasing the material thickness. 2. Aluminised steel. This has greater corrosion resistance than carbon steel, but the coating is damaged by welding. Some consider the damage so extensive that the extra cost is unjustified, while others consider that aluminised steel is the most economical material for exhaust systems. 3. Stainless steel. Austenitic stainless steel is very durable but expensive, while ferritic stainless steel has limited life but is much cheaper. There are also a number of other materials which are used experimentally. It must be noted that it is not only corrosion but cracks due to vibration and oscillation, and thermal stresses, which cause breakdown of an exhaust system. For this reason the use of the most expensive material, austenitic stainless steel, is not economically justifiable. The conclusions are that 1. Untreated steel sheet is unsatisfactory from the corrosion viewpoint, 2. Present exhaust systems should be made of aluminised steel or stainless steel, 3. Regardless of the material chosen, design and construction must suit the properties of the material. /TRRL/

• Corporate Authors:

  Korrosionsinstitutet

  Box 43037
  Stockholm,   Sweden 
• Publication Date: 1976

Language

• Swedish

Media Info

• Features: Figures; References; Tables;
• Pagination: 48 p.
• Serial:
  • Issue Number: 76

Subject/Index Terms

• TRT Terms: Aluminum; Automobiles; Building materials; Carbon steel; Corrosion; Corrosion resistance; Costs; Design; Exhaust gases; Exhaust pipes; Plastics; Stainless steel; Steel; Vehicle design; Vibration
• Subject Areas: Design; Finance; Geotechnology; Highways; Materials; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety; I94: Vehicle Corrosion;

Filing Info

• Accession Number: 00147916
• Record Type: Publication
• Source Agency: Swedish National Road and Traffic Research Institute
• Report/Paper Numbers: Bulletin Number 76 Monog Ser
• Files: ITRD, TRIS
• Created Date: Aug 4 1977 12:00AM