All conventional welding methods can be used for HSS. The most commonly used welding methods in the trailer industry today are: 

  • MAG welding (with solid or cored wire)
  • Submerged arc welding (sometimes used to produce longitudinal beams)

Filler metal

The strength of the filler material should normally be matched to the strength of the base material, as in the table below. However, welds in trailer applications are rarely subjected to stress levels that require matching filler metal. In most cases, it is therefore possible to use undermatching filler metals. If submerged arc welding is used for welding HSS, basic flux is recommended.

Steel Grade MAG Welding (GMAW) Submerged Arc Welding (SAW)
 Strenx® 700MC  AWS: A5.28 ER100S-X  AWS: A5.23 F10X
 AWS: A5.28 ER110S-X  AWS: A5.23 F11X
 EN 12534: G Mn3Ni1CrMo  EN ISO 26304-A S69X
 EN 12543: G Mn4Ni2CrMo  
 

 Strenx® 700 CR

 Strenx® 960 CR

 AWS: A5.28 ER110S-X  
 AWS: A5.28 ER120S-X  
 EN 12534: G Mn3Ni1CrMo  
 EN 12543: G Mn4Ni2CrMo  

Filler material for Strenx® performance steel.